EPCOS B66365-G-X1 Datasheet

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Ferrites and accessories

ETD 44/22/15 Core and accessories

Series/Type: B66365, B66366

Date: September 2006, December 2008

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ETD 44/22/15

To IEC 61185

■

■ For SMPS transformers with optimum

weight/performance ratio at small volume

■ Delivery mode: single units

Magnetic characteristics (per set)

Σl/A= 0.6 mm l

= 103 mm

= 173 mm

= 172 mm

min

Ve= 17800 mm

–1

2 2

22,5 0,4

16,1+0,8

0,815,2

15,2

B66365Core

0,8

Approx. weight 94 g/set

32,5+1,6

+1,2

43,8

0,8

FEK0057-6

Ungapped

Material A

value

Ordering code

W/set N27 3300 +30/–20% 1560 < 3.48 (200 mT, 25 kHz, 100 °C) B66365G0000X127 N87 3500 +30/–20% 1650 < 9.40 (200 mT, 100 kHz, 100 °C) B66365G0000X187 N97 3600 +30/–20% 1720 < 8.00 (200 mT, 100 kHz, 100 °C) B66365G0000X197

Gapped

Material g

value

approx. nH

Ordering code ** = 27 (N27)

** = 87 (N87)

N27, 0.20 ±0.02 862 407 B66365G0200X1** N87 0.50 ±0.05 438 207 B66365G0500X1**

1.00 ±0.05 262 124 B66365G1000X1**

1.50 ±0.05 194 92 B66365G1500X1**

The A

value in the table applies to a core set comprising one ungapped core (dimens ion g = 0) and

one gapped core (dimension g > 0).

Please read Cauti ons and warnings and Important notes at the end of this document.

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ETD 44/22/15

Calculation factors (for formulas, see “E cores: general information”)

B66365Core

Material Relationship between

air gap – A

value

Calculation of saturation current

K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C) N27 262 –0.74 420 –0.847 391 –0.865 N87 262 –0.74 420 –0.796 382 –0.873

Validity range: K1, K2: 0.10 mm < s < 3.50 mm

K3, K4: 110 nH < A

< 1060 nH

Please read Cauti ons and warnings and Important notes at the end of this document.

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ETD 44/22/15

Coil former

Material: GFR polyterephthalate, UL 94 V-0, insulation class to IEC 60085:

B66366B: F max. operating temperature 155 ° C, color code black Valox 420-SE0 B66366W: H max. operating temperature 180 °C, color code black

Rynite FR 530 Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3.5 s Winding: see Data Book 2007, chapter “Processing notes, 2.1”

Yoke

Material: Stainless spring steel (0.4 mm) Coil former Ordering code

[E45329 (M)], GE PLASTICS B V

[E41938 (M)], E I DUPONT DE NEMOURS & CO INC

B66366Accessories

Sections A

μΩ

value

Pins

1 210 77.7 12.7 18 B66366B1018T001

B66366W1018T001

Yoke (ordering code per piece, 2 are required) B66366A2000X000

Coil former Yoke

Pin 1 marking

51 max.

29.5 min.

0.8

38.4 max.

4.5±0.5

8 x 5.08 = 40.64

49.6 max.

31.9 min.

17.7 max.

32.2 max.

15.5 min.

Hole arrangement

1.6+0.15

View in mounting direction

35.56±0.05

Please read Cauti ons and warnings and Important notes at the end of this document.

FEK0265-9-E

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Ferrites and accessories

Cautions and warnings

Mechanical stress and mounting

Ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. Since ferrites are ceramic materials one has to be aware of the special behavior under mechanical load.

As valid for any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or tensile load. Especially high cool ing rates under ultrasonic cleaning and h igh static or cyclic loads can cause cracks or failure of the ferrite cores.

For detailed information see Data Book 2007, chapter “General – Definitions, 8.1”.

Effects of core combination on A

value

Stresses in the core affect not only the mechanical but also the magnetic properties. It is apparent that the initial permeability is dependent on the stress state of the core. The highe r the stresses are in the core, the lower is the value for the initial permeability. Thus the embedding medium should have the greatest possible elasticity.

For detailed information see Data Book 2007, chapter “General – Definitions, 8.2”.

Heating up

Ferrites can run hot during operation at higher flux densities and higher frequencies.

NiZn-materials

The magnetic properties of NiZn-materials can change irreversible in high magnetic fields.

Processing notes

– The start of the winding process should be soft. Else the flanges may be destroid. – To strong winding forces may blast the flanges or squeeze the tube that the cores can no more

be mount. – To long soldering time at high temperature (>300 °C) may effect coplanarity or pin arrangement. – Not following the processing notes for soldering of the J-leg terminals may cause solderability

problems at the transformer because of pollution with Sn oxyd of the tin bath or burned insulation

of the wire. For detailed information see Data Book 2007, chapter “Processing notes, 2.2”. – The dimensions of the hole arrangement have fixed values and should be understood as a

recommendation for drilling the printed circuit board. For dimensioning the pins, the group of

holes can only be seen under certain conditions, as they fit into the given hole arrangement. To

avoid problems when mounting the tran sformer, the manufacturing tolerances for positioni ng the

customers’ drilling process must be considered by increasing the hole diameter.

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Important notes

The following applies to all products named in this publication:

1. Some parts of this publication contain statements about the suitability of our products for

certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding

statements about the suitability of our products for a particular customer application.

As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themsel ves. For these reasons , it is always ul timately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application.

2. We also point out that in individual ca ses, a malfunction of electronic components or failure

before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very

high level of operational safety and especially in customer applications in which the malfunction or failure of a passive ele ctronic component could endanger human life or health (e.g. in ac cident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of a passive electronic component.

3. The warnings, cautions and product-specific notes must be observed.

4. In order to satisfy certain technical requirements, some of the products described in this

publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as hazardous). Useful information on this will be found in our

Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed questions, please contact our sales offices.

5. We constantly strive to improve our products. Consequently, the products described in this

publication may change from time to time. The same is true of the corresponding product specifications. Please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order.

We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be available.

The aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-specific products.

6. Unless otherwise agreed in individual contracts, all orders are subject to the current version

of the “General Terms of Delivery for Products and Services in the Electrical Industry” published by the German Electrical and Electronics Industry Association (ZVEI).

7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSSP, CTVS, DSSP, MiniBlue, MKK,

MLSC, MotorCap, PCC, PhaseCap, PhaseMod, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe and in other countries. Further informati on will be found on the Internet a t www.epcos.com/trademarks.

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