A Dimensions: [mm]

B Recommended land pattern: [mm]

D Electrical Properties:

Properties

Test conditions

Value

Unit

Tol.

Inductance base

Turns ratio

Rated Current base

Saturation Current base

DC Resistance base

Voltage-μSecond base

Leakage Inductance base

Insulation test voltage

10 kHz/ 1 V

N1:N2:N3:N4:N5:N6

ΔT = 40K

|ΔL/L| < 10%

@ 20°C

10 kHz/ 1 V

3 mA/1 s

Lbase

n

IR base

Isat base

RDC base

∫Udt base

Ls base

UT

4.3

1:1:1:1:1:1

1.91

2.91

30

65.6

0.18

500

μH

A

A

mΩ

μVs

μH

V (AC)

±20%

typ.

typ.

max.

max.

typ.

1) Inductance of a single winding

2) Rated Current of a single winding

3) Saturation Current of a single winding when all windings are driven.

If not all windings are current driven the Saturation current per winding is

6x Isatbase / number of driven windings

4) DC Resistance of a single winding

E General information:

It is recommended that the temperature of the part does

not exceed +125°C under worst case conditions.

?Storage Temperature: -40°C to +85°C

?Operating Temperature: -40°C to +125°C

?Test conditions of Electrical Properties: 20°C, 33% RH

if not specified differently

DESCRIPTION

WE-FLEX Flexible Transformer for DC/DC

Würth Elektronik eiSos GmbH & Co. KG

EMC & Inductive Solutions

Max-Eyth-Str. 1

Converter

4.1

4.0

3.0

REV

2014-02-18

2013-06-14

2006-08-01

DATE

SSt

SSt

TBr

BY

TBr

TBr

-

CHECKED

74638 Waldenburg

Germany

Tel. +49 (0) 79 42 945 - 0

www.we-online.com

eiSos@we-online.com

Order.- No.

749196530

Size: EFD20

SIZE

A4

This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use.

Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before

the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance.