SCHAFFNER SINGLE PHASE FILTERS User Manual

Your number one name for EMC

for chassis- and

PCB-mounting

SINGLE PHASE FILTERS

SCHAFFNER

Single-phase filters for chassis- and PCB-mounting

CONTENTS

General information

Introduction to single-phase filters............2

Filter selection chart...................................3

Understanding EMC standards &

filter specifications......................................4

EMC measurement & engineering

services .......................................................8

Ordering information...................................9

Technical data

FN 22.........................................................10

FN 250.......................................................12

FN 332.......................................................14

FN 343.......................................................16

FN 346.......................................................18

FN 350.......................................................20

FN 352Z.....................................................22

FN 357.......................................................24

FN 401.......................................................26

FN 402.......................................................28

FN 405.......................................................30

FN 406.......................................................32

FN 410.......................................................34

FN 420.......................................................36

FN 610.......................................................38

FN 612.......................................................40

FN 660.......................................................42

FN 670.......................................................44

FN 680.......................................................46

FN 685.......................................................48

FN 700Z.....................................................50

FN 9675.....................................................52

Mechanical Data ..............................54 - 60

Addresses and contact information ........61

SCHAFFNER

In today’s world, more electrical energy is being generated at increasing levels of power, and more and more low power energy is being used for the transmission and processing of data. The result is vastly increased ‘electronic smog’ or noise. This noise can disrupt, and even destroy, electronic devices: an unacceptable situation, and shortly an illegal one in certain markets. The electronics

industry must strive to protect equipment against such ‘noise’.

Noise, or interference, travels two ways. Switches - such as semiconductors - can emit interference, and be susceptible to it. The same is true for data processing equipment. The most common method of protection is the use of powerline filters coupled with screening or gasketting materials.

The mains, or powerline, filter is the key element in eliminating mains-borne interference. This filter not only has to meet the requirements of electro-magnetic compatibility (EMC), but safety aspects as well. For some applications, the filter also has to prevent the radiation of classified information from the mains line (‘Tempest’ applications). Other applications require a filter to protect equipment from destructive voltages on the power line, like those caused by lightning or nuclear explosion (NEMP).

Schaffner’s breadth of product range, the high attenuation characteristics of our filters under various load conditions, our dedication to quality - and above all our organization’s unique experience in filter design and manufacturing spanning more than 25 years - is your guarantee of excellence.

Total commitment to quality

Schaffner’s aim is to provide our customers with faultfree products. To achieve this, 100% of our products undergo rigorous final

testing. To ensure high quality we have instituted a system which meets all the stringent requirements of the ISO 9001 / EN 29001. The phrase ‘Quality Assurance’ is not just a slogan for us; it is applied in practice, and the Schaffner brand truly stands for reliability and quality.

Schaffner’s single-phase filter range provides an off-the-shelf solution for the vast majority of electronic equipment noise problems. Our standard product range is particularly wide, embracing both chassis-mounting and PCB-mounting types, allowing users to select an optimal choice in both performance and cost efficiency terms.

Chassis-mount types

In general, chassis mount filters provide a higher performance solution, in metal cases for optimum connection to earth and good high frequency performance. With the space available for up to three circuit stages for attenuation of noise, users can usually find an option with the performance to provide an off the shelf solution for even the most difficult of EMC problems (to retrofit an EMC solution to an existing design for instance). Schaffner offers chassis-mounting versions for a very wide range of power levels - from less than 1A to 55A - covering a majority of higher power office equipment and low to medium power industrial applications.

At the lower power levels, users have the additional choice of opting for a PCB-

mounting version (see following section), or an IEC inlet type which typically handle currents of up to 6-10A and are ideal for small office and industrial equipment. The associated IEC 950 specification is a key safety requirement for computer and office/business equipment, developed to provide a consistent world standard, which in turn simplifies the certification process. The standard specifies requirements intended to ensure safety against electrical and fire hazards for the operator and layman who may come into contact with the equipment, and where specifically stated, for service personnel. IEC 950-compliance is required for products shipped in Europe, and has either already become - or is in the process of becoming - a de-facto standard in all other world markets. It has been adopted by European countries under EN60950, and by the USA under UL 1950. Two filter families in this catalogue are available with IEC inlets, one of which is compliant with IEC 950 (request separate IEC inlet/IEC 950 catalogue for full details of Schaffner’s range).

PCB-mount types

PCB filters are designed for compactness and ease of assembly, and avoid the need for extra mounting components and installation operations necessary with chassis styles, but at the expense of finite available space for filtering circuitry. Consequently, they typically offer just a single stage of attenuation, with limitations on the maximum power handling

capability (up to 6.5A current ratings). This typically makes these filters ideal for those companies who have planned for EMC protection throughout the equipment design process, and are completing equipment protection with these low cost components. When designing these components in, care needs to be taken to provide a low impedance connection to earth, and to minimize the potential for any noise

Powerline filters

- a vital element of today’s electronic designs

Filter family FN 22 ✓ FN 250, 350 ✓✓ FN 332 ✓✓ FN 343 ✓✓ FN 346 ✓✓ FN 352Z ✓✓✓ FN 401 ...406 ✓✓ FN 410 ✓✓ FN 610, 612 ✓ FN 660, 670 ✓✓✓ ✓ FN 680, 685 ✓✓ ✓ FN 700Z ✓✓✓✓✓ FN 9675/76 ✓✓ ✓

radiation from the mains inlet connection.

Time to market

The key reasons for choosing ready-made filters are convenience, compactness and cost. Although you can design your own mains inlet and filter using discrete components, or have a custom solution designed and assembled for you, the timescales involved in getting safety approvals will often rule this approach out, especially for higher volume products such as photocopiers which necessitate very fast design cycles.

Ready-made chassis- and PCB-mount filters provide a convenient single-source solution, with the additional benefits of custom-engineered housings for compactness. The following guide to

Schaffner’s single-phase products - with brief details on key parameters - will help you to identify one or more filters for closer review of specifications (there are some 170 options available in the total range). From this initial selection, a review of the circuit diagram and detailed specifications in the following pages will tell you if the module is suitable for your application, allowing you to choose a unit (or units) for trial.

Schaffner is one of the world’s leading suppliers of EMC equipment, and our extensive experience allows us to offer one of the widest EMC filtering ranges available - spanning both generalpurpose and specialist needs like TEMPEST. This breadth of range greatly assists designers, allowing optimum

choices to be made, whether the need is for maximum performance or lowest cost.

Our worldwide organization - with its numerous application engineering teams will gladly help your engineers select and trial suitable power line filters, and provides an efficient support structure to assist multi-national organizations with dispersed design and manufacturing facilities.

As a review of this catalogue will show you, Schaffner designs power line filters using high grade components in order to optimize reliability. And we construct modules under the control of the most advanced quality system. Whichever power line filter you choose, you can rely on Schaffner’s quality.

5 1015202530354045505 101520253035404550

standard

current rating (A)

Attenuation

middle high very high

with earth line choke

with overvoltage protection

2 stage

3 stage

with IEC inlet

for SMPS

for medical equipment

NEMP, TEMPEST

for printed-circuit mounting

for motor drives

Schaffner’s chassis- and PCB-mounting filter range

Rapid selection Using the current rating and attenuation performance indicators, together with the major features shown on the right, this table allows you to quickly identify a ‘short list’ of filter families which are potentially suitable for your application, for subsequent detailed investigation using the technical specifications on the following pages.

This section introduces the standards and regulations associated with EMC protection, and provides detailed information to help you understand filter design and specifications. It will help you identify for your application the right specifications and type of filter.

Interference protection standards

Until recently most countries have had their own regulations and standards governing electro-magnetic interference (EMI) or radio frequency interference (RFI). However, on the 1 January 1992 the European Directive 89/336/EMC on electro-magnetic compatibility (EMC) came into force. This directive brings a common approach to EMC to every member state of the European Union. Common standards will be used throughout Europe to ensure that technical trade barriers are removed. As well as controlling EMI emissions from equipment, the directive also calls for equipment to be immune to external electro-magnetic disturbances.

The task of elaborating the standards to be used has been given to the European organisation called CENELEC. The member countries of CENELEC are:

Austria Italy Belgium Luxembourg Denmark Netherlands Finland Norway France Portugal Germany Spain Greece Sweden Iceland Switzerland Ireland United Kingdom

Most of the European standards will be based upon international standards from CISPR and IEC. The numbering system used in the European standards is:

EN xx yyy

EN = European Norm. xx = 50 denotes that the standard is a standard of CENELEC origin; xx = 55 means the standard is based on a CISPR standard yyy; xx = 60 means the standard is based on an IEC standard yyy.

Once the European standard is complete the individual members of the European Union will produce national harmonised standards and will usually give their harmonised standard a national number, eg the British harmonised standard of EN 55011 is BS EN 55011.

Types of standards: Basic standards

describe the general and fundamental rules for meeting the requirements. Terminology, phenomena, compatibility levels, measurement, test techniques and classification of EM environments are so described within.

Generic standards refer to specific

environments. They set minimal EMI levels which equipment in these environments must meet. Where no product specific standards exist then the generic standards are to be used. Generic standards describe household and industrial EMI environments.

Products standards are for specific

products or product groups. These standards are coordinated with the generic standards.

In countries outside Europe other standards will be used, such as the FCC in the USA. Table 1 shows the main European standards.

Permissible noise limits

The various standards set down limits for conducted EMI emissions. These limits are measured in voltage and given in dBµV where 0dB is 1µV. The interference is measured using measurement equipment which has defined bandwidths and receivers. The two receivers used are a quasi-peak detector, and an average detector.

To ensure repeatability of the measurements, the impedance of the mains supply must be constant. The standards calls for a defined artificial mains network - sometimes called a line impedance stabilisation network (LISN) which gives a defined impedance to the noise and also helps filter any noise on the mains which may affect the measurements.

Figure 1 shows the limits of EN 50081-1 the European generic standard for residential, commercial and light industrial environments, and Figure 2 of EN 50081-2, the European generic standard for the industrial environment.

Above 30MHz, radiated noise interference is measured instead of conducted noise. This takes place on an open field test site using defined antennas.

Understanding EMC standards and filter specifications

Table 1. European EMC standards

Product type

Household appliances & portable tools: vacuum cleaners, washing machines, heating, cooking equipment, dimmers

Luminaires with discharge lamps

TV receivers Information Technology

Equipment (ITE) Mains signalling

equipment Industrial, scientific and

medical eqpt. designed to generate RF energy

Industrial electronic power and control equipment

Industrial non-electronic equipment

Harmonics

EN60555-2

EN60555-2 EN60555-2

Voltage fluctuations

EN60555-3

Radio interference

EN55014

EN55015

EN55013 EN55022

EN50065-1

EN55011

EN50081-2

EN50081-2 (if producing RF interference)

Immunity All

aspects

EN50082-1

EN55020 EN55024

all parts EN50082-2

EN50082-2

Emissions

Frequenz Hz

Pegel

Figure 1. Permissible interference limits for EN 50081-1

Figure 2. EN 50081-2 limits

Interference sources and spectrums

The most common source of conducted EMI is power electronic products such as switched mode power supplies (SMPS), pulse width modulated (PWM) frequency converters or motor drives, and phase angle controllers.

The emissions spectrum typically starts off very large at low frequency and rolls off as frequency increases. The point at which the noise falls below the permitted limits depends on several factors, the most important being the frequency of operation and the rise time of the semiconductor devices.

Interference spectrums generated can be either continuous, as in the case of phase angle controllers, (Figure 3) or discrete which is typical of the SMPS (Figure 4).

Figure 3. Continuous spectrum

Figure 4. Discrete spectrum

Interference propagation

EMI can propagate by two means:

• by radiation - where the energy can be coupled either through magnetic or electric field, or as an electro-magnetic wave between the source and the victim

• by conduction - where the EMI energy will propagate along power supply lines and data cables

Radiated and conducted EMI cannot be thought of as totally separate problems, because noise conducted along a cable may be radiated as the cable acts as an antenna. The radiation will increase as the cable length becomes comparable to the wavelength of the noise. Also, the cable will act as a receiving antenna and pick up radiated interference.

Below around 150MHz, the most efficient radiating devices in a system are usually the power supply and data cables. Proper filtering of these cables will reduce radiation due to the cables as well as conducted interference.

Above around 150MHz, PCB tracks and short internal cables will start to become efficient antennas. To reduce this radiation a PCB should be laid out to reduce track length and loop areas; ground planes should be used if possible. Decoupling of digital ICs is very important and shielding may be necessary.

Interference types

To understand the problems associated with conducted EMI it is first necessary to understand the two modes of conducted noise: differential mode (or symmetrical mode) and common mode (or asymmetrical mode). Differential mode interference creates a voltage between the phases of the system and is independent of earth; the differential mode currents

flow along one phase and returns along another phase (Figure 5).

Common mode noise creates a voltage between each phase and the earth. The common mode currents flow from the noise source to the earth (usually via a parasitic capacitance) along the earth path and returns along the phases. (See Figure

6) A power line filter must be designed to attenuate both common mode and differential mode interference.

Figure 5. Differential mode interference

DM)

Figure 6. Common mode interference

CM)

Mains filters

Maximum power transfer occurs when source and load impedances are matched. A power line filter is an inductor-capacitor network that aims to cause maximum mismatch between impedances, and therefore reduces the amount of EMI power to be transferred from the noise source onto the power line cable. Figure 7 shows a typical single-phase power line filter.

Figure 7. A typical single-phase power line filter

0.15

Frequency (MHz)

0.5 5

Level (dBµV)

Quasi-peak

Average

INDUSTRIAL

VDM

Line

Neutral

Earth

VCM

Line

Neutral

Earth

Level (dBµV)

Quasi-peak

Average

LIGHT INDUSTRIAL & DOMESTIC

0.15

Frequency (MHz)

0.5 5

60 50

56 46

Frequency Hz

Level dB

Live

Neutral

Earth

Cx Cx

Level

(dB)

Frequency (Hz)

Level

(dB)

Frequency (Hz)

Level dB

Frequency Hz

Line

The inductors L1 and 2 are usually wound

- in a current compensated fashion - on a toroidal core. This winding method allows flux due to differential mode currents and mains currents to cancel each other, while common mode currents will be added together. This gives a large inductance to common mode currents and ensures that the inductor will not be saturated by the large magnetic flux produced by the mains current.

The capacitors placed between the phases, known as ‘X’ class capacitors must offer a high pulse voltage rating and are used to attenuate differential mode interference. The capacitors between the phase lines and earth, known as ‘Y’ class capacitors must have a more stringent rating and are used to attenuate common mode interference. The value of the Y capacitor is restricted by the permissible leakage current allowed. The maximum leakage current is governed by standards and regulations and depends upon the type of equipment. The leakage current is given by:

=2· π·U·f·c

where I

is the leakage current; U the voltage across the capacitor; f the frequency of the mains voltage across the capacitor, and c the capacitance.

Mains filters should be mounted as close as possible to power entry so that high frequency interference does not bypass the filter. IEC inlet modules are ideally suited for this task.

To achieve higher attenuation or an increase in the effective working frequency range more complex filters than the one shown in Figure 7 can be made using more common mode or differential mode inductors and capacitors.

Insertion loss

The insertion loss characteristics for each filter shown on the datasheets, are measured in accordance with CISPR 17. Two test conditions are employed: one using 50Ω termination impedances, the other using an input impedance of 0.1Ω and an output impedance of 100Ω (and reverse conditions). Both test methods can be found in section 4.2 of CISPR 17,

and in ‘CISPR 17 Measurements’, a document published by Schaffner and available on request.

In the 50Ω test condition, two sets of insertion loss curves are given. One is common (asymmetrical) mode insertion loss. The other one for differential mode interference.

In general, Schaffner filters perform against common mode interference in the manner shown by the 50Ω insertion loss tests. But in differential mode, the 50Ω is not representative of effective performance. Therefore Schaffner includes the 0.1/100Ω differential mode test to show how a filter will perform in real life situations.

For this 0.1/100Ω test condition, only differential mode insertion loss is given. In this test, mismatched impedances illustrate effective filter performance in a piece of equipment.

Both types of insertion loss testing is carried out without load current. In equipment under load, the inductance and therefore the insertion loss - may change due to saturation. To allow for this Schaffner measures the inductance variation with current. A typical filter has an inductance variation as shown in Figure

8. CISPR17, and/or the application note ‘Everything you wanted to know ...’ can provide more detailed information.

Figure 8. Typical saturation curve

General technical data

All technical data are given at 25ºC unless otherwise specified.

Current ratings

The current ratings given for each type is the maximum allowable current authorised by safety agencies at an ambient

temperature of 40°C. Current at other temperatures is shown in the derating curve, or can be ascertained by the formula:

I = I

√(85 - θ)/45

Voltage ratings

The maximum rated voltage is 250V at 50/60Hz unless otherwise stated on the individual datasheets. Use of capacitors within Schaffner filters which conform to IEC 384 - 14 permit operation at voltages of 10% above this value.

High voltage testing

The high voltage rating of our filters is devided into two specifications, one for type testing and one for production testing. This is in accordance with guidelines laid down in various IEC recommendations. Type testing shall be a minimum of 2121 VDC for a minimum of 60 seconds between all terminals. However, the discharge resistor inside the filter shall be removed for this test according to IEC recommendations. All values given in this catalogue are 100% production tests for a minimum of two seconds. Repetition of voltage tests shall not exceed 80% of the specified values.

Leakage current

The leakage current to ground for each type is given as a maximum value per phase, at 230V/50Hz.

Safety approvals Filters in this catalogue are approved by the major world safety approval agencies. Each datasheet indicates the current safety approval status. The relevant file numbers for our filters are:

UL E64388 Test: UL 1283 CSA LR 44788 Test: CSA 22.2

No. 8-M1986

SEV Test: IEC 939 VDE 7226-4730-10.. Test: VDE 0565-3 SEMKO Test: IEC 939

Almost all of the filters in this catalogue meet the requirements of IEC 950 for Class I and Class III installations with Basic and Supplementary Insulation. For further information see Schaffner’s application note ‘IEC 950’.

Flammability class All filters in this catalogue are UL 94V2 or UL94V0.

MTBF figures In addition to safety approvals, Schaffner filters also have the high reliability shown in the MTBF (mean time between failure) values given for each filter family. This is the lowest typical value for any filter in the particular family and is calculated according to Mil-HB 217-F, for maximum rated current and voltage in an ambient temperature of 40°C. MTBF is stated in hours.

Components The component values given in the detailed product pages are nominal. The value of inductors and capacitors can vary from this nominal value. The tolerance and test conditions for these components is shown in the following table:

Parameter - Tol. + Tol. Test

Inductance 30% 50% 1kHz Capacitance 20% 20% 1kHz Resistance 10% 10% DC

Climatic classification Schaffner filters fulfil the requirements of the HPF climatic classification according to DIN 40040 (ambient temperature -25 to +85°C).

Filters with a connecting cable - such as types FN 0.8 to FN 20 meet the requirements of the HSF climatic classification (ambient temperature

-25 to +70°C). The letters of the climatic classification are

coded as follows: 1st letter: Lower temperature limit:

≅ -25°C

2nd letter: Upper temperature limit:

S ≅ +70°C P ≅ +85°C

3rd letter: Permissible humidity (relative):

F ≅ 75% yearly average 95% highest value for 30 days 85% highest for all other days

According DIN IEC 68 Part 1, the climatic category is given by three numbers, separated by /

Sample: 25/085/21 1st number: Lower temperature limit:

-25°C

2nd number: Upper temperature limit:

+85°C

3rd number: Humidity, 90-95% R.H.

21 days

Filters with a greater temperature range, for special applications and for military use, are available on request.

Filters with earth line chokes

It is possible to get interference induced on all cables of a system simultaneously. In this case the same noise will also be induced onto the earth cable. A standard filter will reduce the noise on the phase lines but not on the earth. The noise on the earth line will then be able to enter the equipment and may cause the equipment to malfunction. To reduce this interference earth line chokes may be fitted or incorporated into the filter. The earth line choke will also provide extra attenuation for normal common mode currents.

Care must be taken not to bypass earth line chokes in systems. For example a PC may have a filter with an earth line choke fitted, if this PC is connected to a printer that is powered from the mains supply, and if the printer does not have an earth line choke, the noise may find a path from the mains into the printer and along the data cable into the PC bypassing the earth line choke in the PC.

Filters for medical equipment

For enhanced safety in medical applications, Schaffner offers ‘B’ versions of many of its filters, offering lower leakage current (3µA typical), a discharge resistor, and higher potential test values (for example FN 326B).

Special filters for NEMP

A nuclear electro-magnetic pulse (NEMP) is a high intensity, short duration, electromagnetic field produced as a result of a nuclear explosion outside the atmosphere (exo-atmospheric). The most critical threat for technically highly developed nations is an exo-atmospheric burst (at an altitude of more than 40 km) producing a NEMP inducing in antennas, power transmission networks etc, such high voltages and currents that it may leave a whole continent without power, telephone or radio communications. Electronic equipment can be protected against a NEMP if it is placed in special room or housing which screen it from the electro-

magnetic fields, and if all feed lines to these areas are protected with voltage limiting devices such as varistors, gas discharge tubes and suppressor diodes.

Special filters for TEMPEST

Telecommunication or data processing equipment can radiate signals, or propagate them along power lines, providing a mechanism for unauthorised persons to access classified information. The study and blocking of such sensitive signals is known as TEMPEST. Mains filters with high attenuation over a large frequency range are necessary. An optimum filter solution can only be found by an exact specification of requirements. The FN 700Z filter series has been used in many TEMPEST applications. Other suitable filters are available on request.

Customer-specific filters

Schaffner’s standard range of filters cover the majority of customers’ requirements. But depending on the application, specific criteria might need to be considered. With our many years of experience, as well as the flexibility and capability of our five development centers located throughout the world, Schaffner can offer companies an efficient and reliable custom engineering service. To date, Schaffner has produced over 4000 custom filters, ranging from 0.1 amps up to 1200 amps, from a matchbox size to rack mount designs, with up to 23 input connections, used in all forms of environments from offices to submarines to factories to military armoured vehicles.

SCHAFFNER

EMC measurement and engineering services

In addition to offering one of the world’s most comprehensive ranges of standard filter products, Schaffner offers the full complement of measurement and engineering services to support equipment manufacturers

and users.

EMC testing

Schaffner operates the most sophisticated EMC test facilities available anywhere today - with extensive investment in screened rooms, specialist test equipment, and application engineering teams - distributed at seven locations throughout the world. Services available at these locations include:

• Faraday cage and open field testing

• harmonics instrumentation for current and voltage to the 49th harmonic

• radio emission measurements to CISPR, EN, VDE, FCC, Mil or SEV

• simulation of electro-magnetic fields

• simulation of short-term DC or AC mains failures

• simulation of transient parasitic voltages

• electro-static discharges to IEC 801-2, VDE 0843 part 2 specifications

• AC and DC insulation testing

Engineering services

Schaffner has the largest world engineering experience in solving EMC problems. In addition to testing and measuring services Schaffner can provide the expert engineering support to help you bring your equipment to market quickly and efficiently; services available include:

• custom filter design

- to optimize filter performance, and solve space, layout, mounting or connection problems

• circuit and equipment design

- advising on circuit and equipment or enclosure design to overcome EMC problems

• turnkey component design and build

Expert EMC Support

SCHAFFNER

Ordering information

For all single-phase filters (except FN 22)

FN 250 & - x / y

connections 01 = solder-lug

02 = pin for PCB mounting 03 = clamp terminal with M4 screw 05 = AMP fast-on 06 = solder-lug/fast-on combination 07 = wire 10 = screw feed-through 13 = AMP fast-on 16 = mini fast-on 23 = clamp terminal 29 = terminal block 33 = terminal block 38 = AMP fast-on

current rating (A)

A = low leakage (small Y capacitors) B = medical version (without Y capacitors) Z = surge voltage protection

filter type

for details see mechanical data pages

Examples: FN 670-1.8/07 Type FN 670; current rating 1.8A; with wire connections FN 350-55/33 Type FN 350; current rating 55A; with safety terminal block connections

Filter selection table

Choose the family FN xxx with the required current rating and features, and add /2 or /3 to determine the component value.

See Mechanical Data (pages 59 and 60) for full details of housings and connections.

SCHAFFNER

47 2.2 15 2.2

Capacitance

Cx Cy

nF nF

0.8 (0.95)

Current ratings

A at 40°C (25°)

FN 22 -0.8 /2 FN 22 -0.8 /3

Family

✓ ✓

Connections

KA1 KA1

Housing

0.3

Inductance

2000 1700

Filter type

190

Maximum

leakage

A/phase

250 50/60

Maximum operating

voltage

VAC Hz

Hipot test voltage

PN→E P→N

VAC VDC

Operating frequency

DC to 400

MTBF at 40°C, 230V, per Mil-HB-217F: 2,750,000 hours.

Additional specifications

Approvals

FN 22

30 30

Weight

Provided in a compact plastic housing suitable for use with automatic assembly equipment, this PCB-mounting filter offers good basic performance, with a profile which suits equipment designs such as monitors, terminals and power supplies.

•

compact PCB-mounting design

•

auto-insertion machine friendly

Compact PCB-mounting filter

Standard types

Insertion loss

Per CISPR 17; A = 50Ω/50Ω sym, B = 50Ω/50Ω asym, C = 0.1Ω/100Ω sym, D = 100Ω/0.1Ω sym

FN 22-0.8/2 types

FN 22-0.8/3 types

Electrical schematics

10k 100k 1M 10M

-20

10k 100k 1M 10M

-20

-10

2xL

FN 22

LINE

LOAD

2xCy

See tables for component values.

Filter selection table

Choose the family FN xxx with the required current rating and features, and add /?? to determine input/output (line/load) connection style. Example: FN 250-6/07 is a 6A filter with wire connections.

See Mechanical Data (pages 58 and 60) for full details of housings and connections.

6 (6.9) 12 (13.8) 20 (23)

Current ratings

A at 40°C (25°)

FN 250 -6 /?? FN 250 -12 /?? FN 250 -20 /??

Family

/07 /07 /07

Connections

K11 K22

Housing

2.5 6 8

Power

loss

5.7

2.7

1.9

Inductance

0.47/0.47 15 1/1 15

2.2/2 15

Capacitance

Cx/Cx

µF nF

2000 1100

Filter type

0.47

0.22

Res.

Ω

1300

Maximum

leakage

A/phase

250 50/60

Maximum operating

voltage

VAC Hz

Hipot test voltage

PN→E P→N

VAC VDC

Operating frequency

DC to 400

MTBF at 40°C, 230V, per Mil-HB-217F: 295,000 hours.

Additional specifications

Approvals

FN 250

240 310 600

Weight

High inductance and capacitance values optimized for common mode attenuation in the 0.1-1MHz range make this filter ideal for a large variety of motor drive applications. Long wire connections give great installation flexibility, simplifying assembly for drive manufacturers.

•

6 to 20A current ratings

•

compact housings with long wire connections

•

meets EN55011(A) for drives with motor cables <20m

Input filter for motor drives

Standard types

SCHAFFNER

Insertion loss

Per CISPR 17; A = 50Ω/50Ω sym, B = 50Ω/50Ω asym, C = 0.1Ω/100Ω sym, D = 100Ω/0.1Ω sym

6 amp types

12 amp types

20 amp types

Electrical schematics

dB 70 60 50 40 30 20 10

-10

-20 10k 100k 1M 10 M

C D

10k 100k 1M

10M

10k 100k 1M

10M

2xL

Cx1

FN 250

LINE

LOAD

2xCy

See tables for component values.

Filter selection table

Choose the family FN xxx with the required current rating and features, and add /?? to determine input/output (line/load) connection style. Example: FN 332-6/01 is a 6A filter with solder lug connections.

See Mechanical Data (pages 57 and 60) for full details of housings and connections.

1 (1.2) 3 (3.6) 6 (7.3)

10 (12)

Current ratings

A at 40°C (25°)

FN 332 -1 /?? FN 332 -3 /?? FN 332 -6 /?? FN 332 -10A/??

Family

/01 /01 /01 /01

/05 /05 /05 /05

Connections

G1 G1 G1 G1

Housing

0.8

0.5

Inductance

15 2.2 15 2.2

Capacitance

Cx Cy

nF nF

1200 26

Surge Energy

current absorption

2000 1700 2000 350

Filter type

190 190

Maximum

leakage

A/phase

250 50/60 250 50/60

Maximum

operating voltage

VAC Hz

Hipot test voltage

PN→E P→N

VAC VDC

Operating frequency

DC to 400 DC to 400

MTBF at 40°C, 230V, per Mil-HB-217F: 710,000 hours.

Additional specifications

Approvals

FN 332

65 65 65 70

Weight

Designed for suppressing high interference levels, this filter is available in a wide choice of current ratings, and also in an optional Z version with a varistor for protection against high surge voltages.

•

1 to 10A current ratings

•

compact housing with solder or fast-on connections

•

optional surge voltage protection (Z types)

Performance filter

Standard types FN 332Z types (surge protected)

SCHAFFNER

Insertion loss

Per CISPR 17; A = 50Ω/50Ω sym, B = 50Ω/50Ω asym, C = 0.1Ω/100Ω sym, D = 100Ω/0.1Ω sym

1 amp types

10 amp types

3 amp types

6 amp types

Electrical schematics

10k 100k 1M 10M

-20

-10

10k 100k 1M

10M

-20

-10

10k 100k 1M 10M

-20

-10

2xL

FN 332

LINE

LOAD

2xCy

2xL

FN 332Z

LINE

LOAD

2xCy

See tables for component values.

Filter selection table

Choose the family FN xxx with the required current rating and features, and add /?? to determine input/output (line/load) connection style. Example: FN 343-3/01 is a 3A filter with solder lug connections.

See Mechanical Data (pages 57 and 60) for full details of housings and connections.

1 (1.15) 3 (3.4) 6 (6.9)

10 (11.5)

Current ratings

A at 40ºC (25º)

FN 343 -1 /?? FN 343 -3 /?? FN 343 -6 /?? FN 343 -10 /??

Family

/01 /01 /01 /01

/05 /05 /05 /05

Connections

J2 J2 J2 J2

Housing

5.6/10/0.4

1.1/2/0.4

0.43/0.77/0.4

0.27/0.66/0.4

Inductance

L/L

2000 1700

Filter type

100/100 2.2

Capacitance

Cx/Cx

nF nF

190

Maximum

leakage

A/phase

250 50/60

Maximum

operating voltage

VAC Hz

Res.

MΩ

Hipot test voltage

PN→E P→N

VAC VAC

Operating frequency

DC to 400

MTBF at 40°C, 230V, per Mil-HB-217F: 970,000 hours.

Additional specifications

Approvals

FN 343

160 160 160 170

Weight

A general-purpose filter with a two-stage design and integral earth line choke for high performance with good common mode attenuation.

•

1 to 10A current ratings

•

2-stage design with earth line choke

Two-stage filter

Standard types

SCHAFFNER

1 amp types

10 amp types

3 amp types

Electrical schematics

10k 100k 1M 10M

-20

-10

6 amp types

10k 100k 1M

10M

10k 100k 1M 10M

2xL

FN 343

LINE

LOAD

2xL1

2xCy

See tables for component values.

Insertion loss

Per CISPR 17; A = 50Ω/50Ω sym, B = 50Ω/50Ω asym, C = 0.1Ω/100Ω sym, D = 100Ω/0.1Ω sym

Filter selection table

Choose the family FN xxx with the required current rating and features, and add /?? to determine input/output (line/load) connection style. Example: FN 346-10/06 is a 10A filter with fast-on connections.

See Mechanical Data (pages 56 and 60) for full details of housings and connections.

1.6 (1.9)

2.5 (3) 6 (7.3)

10 (12)

Current ratings

A at 40°C (25°)

FN 346 -1.6 /?? FN 346 -2.5 /?? FN 346 -6 /?? FN 346 -10 /??

Family

/06 /06 /06 /06

Connections

B27 B27 B27 B27

Housing

34 18

0.7

Inductance

470/220 4.7 470/220 -

Capacitance

Cx/Cx

nF nF

2000 1700 2000 1700

Filter type

0.47

Res.

Ω

410

Maximum

leakage

A/phase

250 50/60 250 50/60

Maximum

operating voltage

VAC Hz

Hipot test voltage

PN→E P→N

VAC VDC

Operating frequency

DC to 400 DC to 400

MTBF at 40°C, 230V, per Mil-HB-217F: 330,000 hours.

Additional specifications

Approvals

FN 346

330 330 330 330

Weight

This filter offers IEC 320-compliant power entry with excellent filtering performance thanks to the use of a U-core plus large inductor and capacitor components. Very high symmetrical attenuation makes the filter an ideal choice for switched-mode power supply equipment applications, and any other form of circuitry involving non-sinusoidal waveforms.

•

up to 10A current ratings

•

very high performance filtering

•

optional medical versions (B types)

High-performance filter

Standard types B types (medical)

SCHAFFNER

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SCHAFFNER SINGLE PHASE FILTERS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual