Datasheet ERA 2A, ERA 3A, ERA 6A, ERA 8A Datasheet (Panasonic)

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Metal Film Chip Resistors, High Reliability Type 0402, 0603, 0805, 1206

Typ e:

ERA 2A, 3A, 6A, 8A

Metal Film Chip Resistors, High Reliability Type

■ Features

High reliability

● (85 °C 85 %RH rated load, Category temperature range : –55 to +155 °C)

High accuracy

● High performance

● Reference Standard

●

...............

..............

.........

......

Stable at high temperature and humidity

Small resistance tolerance and Temperature Coefﬁ cient of Resistance Low current noise, excellent non-linearity IEC 60115-8, JIS C 5201-8, EIAJ RC-2133A

■ Explanation of Part Numbers

Product Code Size, Power Rating

Metal Film Chip Resistors

Type: inches Power Rating

2A : 0402 3A : 0603 6A : 0805 8A : 1206

0.063 W

0.1 W

0.125 W

0.25 W

Temperature Coefficient

Code

R P E H K

±1010 ±1510 ±2510 ±5010 ±10010

T.C.R.

–6

/°C (ppm/°C)

–6

/°C (ppm/°C)

–6

/°C (ppm/°C)

–6

/°C (ppm/°C)

–6

/°C (ppm/°C)

Resistance Tolerance

Code

The first two digits are significant figures of resistance and the third one denotes number of zeros following. (ex.) 102:1k

Tolerance

±0.05 %

±0.1 % ±0.5 %

Resistance Value

Code

Packaging Methods

Punched Carrier Taping (2 mm pitch)

Punched Carrier Taping (4 mm pitch)

Packaging Type

ERA2A

ERA3A ERA6A ERA8A

■ Dimensions in mm (not to scale)■ Construction

Protective coating

Alumina substrate

High reliability metal film

Design and speciﬁ cations are each subject to change without notice. Ask factory for the current technical speciﬁ cations before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately.

Electrode (Inner)

Electrode

(Between)

Electrode (Outer)

Type

(inches)

ERA2A (0402)

ERA3A (0603)

ERA6A (0805)

ERA8A (1206 )

Dimensions (mm)

LWa b t

1.00

1.60

2.00

3.20

±0.10

±0.20

0.50

0.80

1.25

1.60

+0.10

–0.05

±0.20

±0.10

0.15

0.30

0.40

0.50

±0.10

±0.20

±0.25

0.25

0.30

0.40

0.50

±0.10

±0.20

±0.25

0.35

0.45

0.50

0.60

Mass (Weight)

[g/1000 pcs.]

±0.05

±0.10

Mar. 2009

0.6

Metal Film Chip Resistors, High Reliability Type

■ Ratings

Power

Typ e

(inches)

Rating

at 85 °C

(W)

ERA2A

(0402)

ERA3A

(0603)

ERA6A

(0805)

ERA8A

(1206 )

(1) Rated Co ntinuous Working Voltage (RCWV) shall be de ter mined from RCWV=Rated Power  Re sis tance Values, or Limiting Element Voltage

(max. RCWV) list ed above, whichever less.

(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be de termined from SOTV=2.5  Power Rating or max. Over load Volt age list ed above

which ev er less.

(3) E96 series resistance values are also available. Please contact us for details.

0.063 25 50

0.1 75 150

0.125 100 200

0.25 150 300

Limiting Element

Voltage (Maximum

(1)

RCWV)

(V)

Maximum

Overload Voltage

(V)

(2)

Typ e

(detail)

Resistance

Tol e rance

(%)

ERA2AKD ±0.5 ±100 ERA2AED ±0.5 ERA2AEB ±0.1 ERA3AHD ±0.5 ±50 ERA3AED ±0.5 ERA3AEB ±0.1 ERA6AHD ±0.5 ±50 ERA6AED ±0.5 ERA6AEB ±0.1 ERA6APB ±0.1 ±15

ERA6ARB ±0.1 ERA6ARW ±0.05 ERA8AHD ±0.5 ±50

ERA8AED ±0.5

ERA8AEB ±0.1

T.C.R .

–6

/°C

[10

(ppm/ °C)]

±25

±10

±25

Resistance

Range

(3)

()

10 to 43 (E24)

47 to 100 k (E24)

10 to 43 (E24)

47 to 330 k (E24)

10 to 43 (E24)

47 to 1 M (E24)

470 to 100 k (E24)

1 k to 100 k (E24)

10 to 43 (E24)

47 to 1 M (E24)

Category Temperature

Range (Operating

Temp e r ature R a n g e)

(°C)

–55 to +155

Power Derating Curve

For resistors operated in ambient temperatures above 85 °C, power rating shall be derated in ac cor dance with the ﬁ gure on the right.

■ Packaging Methods (Taping)

● Standard Quantity

Typ e Kin d o f Taping Pi tch (P1)Quantity

ERA2A

ERA3A, 6A, 8A

Sprocket hole Compartment

φD

Punched Carrier Taping

P1P2P

Tape running directionChip component

100

Rated Load (%)

–55 °C

–40 –20 0 20 40 60 80 100 120 140 1600180–60

Ambient Temperature (°C)

85 °C

2 mm 10000 pcs./reel

4 mm 5000 pcs./reel

● Taping Reel● Carrier Taping

φC

155 °C

φB

φA

Typ e A B W F E

0.67

1.10

1.65

2.00

4.00

±0.05

±0.10

±0.15

±0.10

Dimensions

(mm)

形式

Dimensions

(mm)

6A, 8A

1.17

1.90

2.50

3.60

2.00

±0.05

±0.10

±0.20

±0.05

8.00

4.00

±0.20

±0.10

3.50

1.50

±0.05

+0.10

–0

1.75

0.52

0.70

0.84

±0.10

±0.05

Dimensions

(mm)

Dimensions

(mm)

180.0

–3.0

60 min. 13.0

9.0

±1.0

11.4

±1.0

Feb. 2009

Metal Film Chip Resistors, High Reliability Type

■ Recommended Land Pattern

In case of ﬂ ow soldering, the land width must be small er than the Chip Resistor width to properly control the sol der amount properly. Generally, the land width should be 0.7 to 0.8 times (W) of the width of chip resistor. In case of reﬂ ow soldering, solder amount can be adjusted, there fore the land width should be set to 1.0 to 1.3 times chip resistor width (W).

Chip Resistor

■ Recommended Soldering Conditions

Recommendations and precautions are described below.

Recommended soldering conditions for reﬂ ow

●

· Reﬂ ow soldering shall be performed a maximum of two times.

· Please contact us for additional information when used in conditions other than those speciﬁ ed.

· Please measure the temperature of the terminals and study every kind of solder and printed circuit board for solderability be fore ac tu al use.

Peak

Typ e

(inches)

ERA2A(0402)

ERA3A(0603)

ERA6A(0805)

ERA8A(1206)

0.5 to 0.6 1.4 to 1.6 0.4 to 0.6

0.7 to 0.9 2 to 2.2 0.8 to 1

1 to 1.4 3.2 to 3.8 0.9 to 1.4

2 to 2.4 4.4 to 5.0 1.2 to 1.8

For soldering (Example : Sn/Pb)

Temp erature Time Preheating 140 °C to 160 °C 60 s to 120 s Main heating Above 200 °C 30 s to 40 s Peak 235 ± 5 °C max. 10 s

Dimensions (mm)

abc

Preheating

Heating

Temperature

For lead-free soldering (Example : Sn/Ag/Cu)

Temp erature Time Preheating 150 °C to 180 °C 60 s to 120 s Main heating Above 230 °C 30 s to 40 s Peak max. 260 °C max. 10 s

Time

Recommended soldering conditions for ﬂ ow

●

For soldering For lead-free soldering

Temp erature TimeTemperatureTime Preheating 140 °C to 180 °C 60 s to 120 s 150 °C to 180 °C 60 s to 120 s Soldering 245 ± 5 °C 20 s to 30 s max. 260 °C max. 10 s

Safety Precautions

The following are precautions for individual products. Please also refer to the precautions common to Fixed Resistors shown on page ER2 of this catalog.

1. Keep the rated power and ambient temperature within the speciﬁ ed derating curve. * When positioning and mounting Metal Film Chip Resistors (hereafter called the resistors), make allowance for the

effect of heat generated through close contact between the resistors and neigh bor ing components and for the temperature rise of adjacent heat-generating components.

2. If a transient load (heavy load in a short time) like a pulse is expected to be applied, check and evaluate the operations of the resistors when installed in your products before use. When applying pulses to the resistors, keep the pulse peak within the rated voltage.

3. Do not use halogen-based or other high-activity ﬂ ux. Otherwise, the residue may impair the resistors' per for mance and/or reliability.

4. When soldering with a soldering iron, never touch the resistors' bodies with the tip of the soldering iron. When using a soldering iron with a high temperature tip, ﬁ nish soldering as quickly as possible (within three seconds at 350 °C max.).

5. As the amount of applied solder becomes larger, the mechanical stress applied to the resistors increases, causing problems such as cracks and faulty characteristics. Avoid applying an excessive amount of solder.

6. When the resistors' protective coatings are chipped, ﬂ awed, or removed, the characteristics of the resistors may be impaired. Take special care not to apply mechanical shock during automatic mounting or cause damage during handling of the boards with the resistors mounted.

7. D o n o t a p p ly shock to the resistors or pinch them with a hard tool (e.g. pliers and tweezers). Otherwise, the resistors' protective coatings and bodies may be chipped, affecting their performance.

8. Avoid excessive bending of printed circuit boards in order to protect the resistors from abnormal stress.

9. Do not immerse the resistors in solvent for a long time. Before using solvent, carefully check the effects of im mer sion.

Feb. 2009

Safety Precautions

(Common precautions for Fixed Resistors)

• When using our products, no matter what sort of equipment they might be used for, be sure to make a written agreement on the speciﬁ cations with us in advance. The design and speciﬁ cations in this catalog are subject to change without prior notice.

• Do not use the products beyond the speciﬁ cations described in this catalog.

• This catalog explains the quality and performance of the products as individual components. Be fore use, check and evaluate their operations when installed in your products.

• Install the following systems for a failsafe design to ensure safety if these products are to be used in equip ment where a defect in these products may cause the loss of human life or other signiﬁ cant damage, such as damage to vehicles (au to mo bile, train, vessel), trafﬁ c lights, medical equipment, aerospace equipment, elec tric heating ap pli anc es, com bus tion/gas equipment, rotating equipment, and disaster/crime prevention equip ment.

Systems equipped with a protection circuit and a protection device

✽

Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault

✽

(1) Precautions for use

• These products are designed and manufactured for general and stan dard use in general elec tron ic equipment (e.g. AV equipment, home electric ap pli anc es, ofﬁ ce equipment, information and com mu ni ca tion equipment)

• These products are not intended for use in the following special conditions. Be fore using the products, care ful ly check the effects on their quality and performance, and determine whether or not they can be used.

1. In liquid, such as water, oil, chemicals, or organic solvent

2. In direct sunlight, outdoors, or in dust

3. In salty air or air with a high concentration of corrosive gas, such as Cl

4. Electric Static Discharge (ESD) Environment

These components are sensitive to static electricity and can be damaged under static shock (ESD). Please take measures to avoid any of these environments. Smaller components are more sensitive to ESD environment.

5. Electromagnetic Environment

Avoid any environment where strong electromagnetic waves exist.

6. In an environment where these products cause dew condensation

7. S e al i ng o r c o ating of these products or a printed circuit board on which these products are mounted, with resin

or other materials

• These products generate Joule heat when energized. Carefully position these products so that their heat will not affect the other components.

• Carefully position these products so that their temperatures will not exceed the category temperature range due to the effects of neighboring heat- generating com po nents. Do not mount or place heat- generating com po nents or inﬂ ammables, such as vinyl-coated wires, near these products .

• Note that non -cleaning solder, halogen-based highly active ﬂ ux, or water-soluble ﬂ ux may deteriorate the performance or reliability of the products.

• Carefull y select a ﬂ ux cleaning agent for use after soldering. An unsuitable agent may deteriorate the performance or reliability. In particular, when using water or a water-soluble cleaning agent, be careful not to leave water res i dues. Otherwise, the insulation performance may be deteriorated.

, H2S, NH3, SO2, or NO

(2) Precautions for storage

The performance of these products, including the solderability, is guaranteed for a year from the date of arrival at your company, provided that they remain packed as they were when delivered and stored at a temperature of 5 °C to 35 ° C and a relative humidity of 45 % to 85 %.

Even within the above guarantee periods, do not store these products in the fol low ing conditions. Otherwise, their elec tri cal performance and/or solderability may be deteriorated, and the packaging materials (e.g. tap ing ma te ri als) may be de formed or deteriorated, resulting in mounting failures.

1. In salty air or in air with a high concentration of corrosive gas, such as Cl

, H2S, NH3, SO2, or NO

2. In direct sunlight

Package markings include the product number, quantity, and country of origin. In principle, the country of origin should be indicated in English.

Oct. 2007

– ER3 –

Datasheet ERA 2A, ERA 3A, ERA 6A, ERA 8A Datasheet (Panasonic)

Specifications and Main Features

Frequently Asked Questions

User Manual