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© Coilcraft Inc. 2013

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

Document 528-1

Document 528-1 Revised 01/13/12

Dimensions are in

inches

mm

Recommended

Land Pattern

0.217

5,5

0.177

4,5

0.157

4,0

0.079

2,0

1

4

2

3

3

1

2

4

L1

L2

123

X

0.197

5,0

0.059

1,5

0.197

5,0

0.138

3,5

0.484

12,3

max

0.484

12,3

max

Dash number

Internal code

1

4

2

3

0.236 ±0.008

6,0 ±0,2

Parts manufactured

prior to Sept. 2007

were marked with

only the dash number.

Dot indicates pin1

*

For optional tin-lead and tin-silver-copper

terminations, dimensions are for the mounted

part. Dimensions before mounting can be

an additional 0.012 inch (0,3 mm).

*

For Flyback, SEPIC, Zeta

and other Applications

• Tight coupling (k

≥ 0.98)

• 500 V isolation

• Idealforuseinavarietyofcircuitsincludingflyback,multi-output

buck, SEPIC and Zeta.

• High inductance, high efficiency and excellent current handling

• Can also be used as two single inductors connected in series

or parallel, as a common mode choke or as a 1 : 1 transformer.

L1

L2

+

+

–

–

D

C

C

Typical Flyback Converter

SW

L1

L2

++

+

––

–

D

D

C

C

SW

Typical Buck Converter with auxiliary output

AUX

Typical Zeta schematic

L1

L2

Q

C1

CC

++

––

D

Typical SEPIC schematic

L1

L2

Q

C1

C

C

++

––

D