B65839A0000R065 - EPCOS AG

Data SheetData Sheet

Date: September 2006

 EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the

information contained therein without EPCOS’ prior express consent is prohibited.

Ferrites and accessories

EP 7

Core and accessories

Series/Type: B65839, B65840

209/06

Please read Cautions and warnings and

Important notes at the end of this document.

■To IEC 61596

■For transformers featuring high inductance

and low overall height

■For power applications

■Delivery mode: sets

Magnetic characteristics (per set)

Σ l/A= 1.52 mm

–1

le= 15.7 mm

Ae= 10.3 mm2

Amin = 8.5 mm2

Ve= 162 mm3

Approx. weight 1.4 g/set

Gapped

Material AL value

approx.

µeOrdering code

T38 63 ±3% 0.20 76 B65839A0063A038

100 ±3% 0.13 121 B65839A0100A038

160 ±5% 0.08 194 B65839A0160J038

200 ±6% 0.06 243 B65839A0200C038

250 ±7% 0.05 303 B65839A0250E038

T57 63 ±3% 0.20 76 B65839A0063A057

100 ±3% 0.13 121 B65839A0100A057

160 ±5% 0.08 194 B65839A0160J057

200 ±6% 0.06 243 B65839A0200C057

250 ±7% 0.05 303 B65839A0250E057

N45 63 ±3% 0.20 76 B65839A0063A045

100 ±3% 0.13 121 B65839A0100A045

160 ±5% 0.08 194 B65839A0160J045

200 ±6% 0.06 243 B65839A0200C045

250 ±7% 0.05 303 B65839A0250E045

N87 63 ±3% 0.20 76 B65839A0063A087

100 ±3% 0.12 121 B65839A0100A087

160 ±5% 0.07 194 B65839A0160J087

200 ±6% 0.06 243 B65839A0200C087

250 ±7% 0.05 303 B65839A0250E087

FEP0004-T

9,4 0,4

0,27,5

0,36,5

5+0,4 1,7±0,1

7,2+0,4

4,4

∗)

0,23,4

gapped (one-sided)

∗)

B65839Core

EP 7

309/06

Please read Cautions and warnings and

Important notes at the end of this document.

Ungapped

Material AL value

µePV

W/set

Ordering code

T57 1500 +30/–20% 1820 B65839A0000R057

N45 1500 +30/–20% 1820 B65839A0000R045

N30 2000 +30/–20% 2430 B65839A0000R030

T65 3000 +30/–20% 3640 B65839A0000R065

T38 5200 +40/–30% 6310 B65839A0000Y038

T66 5800 +40/–30% 7040 B65839A0000Y066

N87 1100 +30/–20% 1330 < 0.08 (200 mT, 100 kHz, 100 °C) B65839A0000R087

B65839Core

EP 7

409/06

Please read Cautions and warnings and

Important notes at the end of this document.

Coil former

Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:

F max. operating temperature 155 °C), color code green

Vyncolit/X611 ® [E167521 (M)], VYNCOLIT NV

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”

Squared pins.

Cap yoke

With ground terminal, made of stainless spring steel (tinned), 0.25 mm thick

Coil former Cap yoke

Coil former Ordering code

Sections AN

mm2

AR value

µΩ

Terminals

14.7 17.7 128.7 6B65840B1006D001

24.2 17.7 143.8 6B65840B1006D002

Cap yoke B65840D2000X000

FEP0005-Z-E

View in mounting direction

Hole arrangement

4.8

ø1+0.2

2.54

Ground ø1.3+0.2

8.5 0.2

4.4 0.15

10.7

7 0.15

0.2

+0.3

1.25

3.2

0.1

3.6+0.1

Marking

of pin 1

0.45 0.5±0.05

ø3.5+0.1

0.1

FEP0006-U

5,6

3,8

9,1

7,65 min.

3,9

8,2 min.

9,6 min. 0,4

0,8

View A

6,6 min.

1 0,1

B65840Accessories

EP 7

509/06

Please read Cautions and warnings and

Important notes at the end of this document.

SMD coil former with gullwing terminals

Material: GFR liquid crystal polymer (UL 94 V-0), color code black

Sumika Super E4008

® [E54705 (M)], SUMITOMO CHEMICAL CO LTD

Solderability: to IEC 60068-2-58, test Td, method 6 (Group 3): 245 °C, 3 s

Resistance to soldering heat: to IEC 60068-2-58, test Td, method 6 (Group 3): 255 °C, 10 s

permissible soldering temperature for wire-wrap connection on coil former: 400 °C, 1 s

Sections AN

mm2

AR value

µΩ

Terminals Ordering code

14.5 18.1 138.1 6B65840N1106T001

FEK0475-T-E

3.5±0.1

12.7±0.15

5.08

2.54

1.3

2.54

13.5

ø4.5±0.2

8.6±0.2

7±0.2

9.2±0.2

4.8±0.2

3.6±0.1

5.35±0.2

0.3

0.6

Recommended

PCB layout

B65840

Preliminary data

Accessories

EP 7

609/06

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 cooling rates under ultrasonic cleaning and high 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 AL 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 higher 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 transformer, the manufacturing tolerances for positioning the

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

709/06

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 themselves. For these reasons, it is always ultimately 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 cases, a malfunction of passive 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 electronic component could endanger human life or health

(e.g. in accident 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.

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, EPCOS-JONES, Baoke, Alu-X, CeraDiode, CSSP, MLSC,

PhaseCap, PhaseMod, SIFI, SIFERRIT, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K,

UltraCap, WindCap are trademarks registered or pending in Europe and in other countries.

Further information will be found on the Internet at www.epcos.com/trademarks.