E L E C T R O N I C S I N C .

Surface Mount Power Transformer

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

Features of the EFD15-6 Series

• Low Loss Material ensures operation in High Frequency

Switching Converters such as Flyback, Buck, Boost

Topology or as Coupled Inductors

• UL1446 Class B Insulating System

• UL 94V-0 Recognized Material

• Very Low Leakage Inductance

EPC3020G-EPC3027G

Product performance is limited to specified parameters. Data is subject to change without prior notice.

Primary Specification

Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25

CSC3020G-CSC3027G

Rev. 2

12/18/02

Package EFD15-6

.492

(12.50)

.098

(2.50)

.646 Max.

(16.40)

.709

Max.

(18.00)

Pin 1

I.D.

1

12

6

7

.028

(.700)

PCA

EPC30XXG

D.C.

.837

(21.25)

.072

(1.82)

0°-8°

.012

(.300)

.315 Max.

(8.00)

.016

(.400)

Schematic

5

4

7

8

9

6

2

1

10

11

12

3

1:1:1:1:1:1

Notes :

1. Ns = Number of series connections

2. Np = Number of parallel connections

3. Ks = Ns x

6/Ns

4. Kp =

6/Np

Connection

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Part

Number

EPC3020G

EPC3021G

EPC3022G

EPC3023G

EPC3024G

EPC3025G

EPC3026G

EPC3027G

Idc

(Amps)

2.6 /Ks

2.6 /Kp

1.8

3.6 /Ks

3.6 /Kp

2.17

4.4 /Ks

4.4 /Kp

1.8

5.3 /Ks

5.3 /Kp

2.17

4.4 /Ks

4.4 /Kp

1.8

5.3 /Ks

5.3 /Kp

2.17

4.4 /Ks

4.4 /Kp

1.8

5.3 /Ks

5.3 /Kp

2.17

DCR

(

Ω Max.)

.083 xNs

.083 /Np

.083

.057xNs

.057 /Np

.057

.083 xNs

.083 /Np

.083

.057xNs

.057 /Np

.057

.083 xNs

.083 /Np

.083

.057xNs

.057 /Np

.057

.083 xNs

.083 /Np

.083

.057xNs

.057 /Np

.057

Inductance

Change

@ Idc (Typ.)

28%

28%

6%

26%

26%

4%

6.5%

6.5%

0%

3%

3%

0%

2%

2%

0%

0.5%

0.5%

0%

0%

0%

0%

0%

0%

0%

Inductance

(µH ± 20%)

@ 0 Adc

23.7 x(Ns)

23.7

23.7

11.3 x(Ns)

11.3

11.3

12.7 x(Ns)

12.7

12.7

6.1 x(Ns)

6.1

6.1

10.1 x(Ns)

10.1

10.1

4.9 x(Ns)

4.9

4.9

7.94 x(Ns)

7.94

7.94

3.8 x(Ns)

3.8

3.8

Temp. Rise

@ Idc

(°C Typ.)

20

20

39

24

24

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

Vt 1

(V-µSec. Max.)

62.5 xNs

62.5

62.5

43 xNs

43

43

62.5 xNs

62.5

62.5

43 xNs

43

43

62.5 xNs

62.5

62.5

43 xNs

43

43

62.5 xNs

62.5

62.5

43 xNs

43

43

2

2

2

2

2

2

2

2

• Switching Frequency : Up to 1 MHz • Isolation : 500 Vrms •