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 EFD20-6 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

EPC3030G-EPC3107G

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

CSC3030G-CSC3107G

Rev. 4

12/18/02

Package EFD20-6

.591

(15.00)

.118

(3.00)

.854 Max.

(21.70)

.835 Max.

(21.20)

Pin 1

I.D.

1

12

6

7

.028

(.700)

PCA

EPC30XXG

D.C.

1.128

(28.65)

.080

(2.03)

0°-8°

.010

(.250)

.425 Max.

(10.80)

.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

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Series

Parallel

Single Wdg

Part

Number

EPC3030G

EPC3031G

EPC3032G

EPC3033G

EPC3034G

EPC3035G

EPC3036G

EPC3037G

EPC3055G

EPC3067G

EPC3107G

Idc

(Amps)

6.1 /Ks

6.1 /Kp

2.5

7.5 /Ks

7.5 /Kp

3.06

6.1 /Ks

6.1 /Kp

2.5

7.5 /Ks

7.5 /Kp

3.06

6.1 /Ks

6.1 /Kp

2.5

7.5 /Ks

7.5 /Kp

3.06

6.1 /Ks

6.1 /Kp

2.5

7.5 /Ks

7.5 /Kp

3.06

5.2 /Ks

5.2 /Kp

2.1

4.0 /Ks

4.0 /Kp

1.6

2.2 /Ks

2.2 /Kp

0.9

DCR

(

Ω Max.)

.071 xNs

.071 /Np

.071

.047xNs

.047 /Np

.047

.071 xNs

.071 /Np

.071

.047 xNs

.047 /Np

.047

.071 xNs

.071 /Np

.071

.047 xNs

.047 /Np

.047

.071 xNs

.071 /Np

.071

.047xNs

.047 /Np

.047

.081xNs

.081 /Np

.081

.071 xNs

.071 /Np

.071

.071 xNs

.071 /Np

.071

Inductance

Change

@ Idc (Typ.)

27%

27%

7.5%

21%

21%

9%

1%

1%

0%

0.4%

0.4%

0%

0%

0%

0%

0%

0%

0%

0%

0%

0%

0%

0%

0%

14%

14%

2%

23%

23%

2%

30%

30%

2%

Inductance

(µH ± 20%)

@ 0 Adc

22.3 x(Ns)

22.3

22.3

9.9 x(Ns)

9.9

9.9

12.0 x(Ns)

12.0

12.0

5.3 x(Ns)

5.3

5.3

9.65 x(Ns)

9.65

9.65

4.3 x(Ns)

4.3

4.3

7.63 x(Ns)

7.63

7.63

3.4 x(Ns)

3.4

3.4

27.4 x(Ns)

27.4

27.4

31.7 x(Ns)

31.7

31.7

50.0 x(Ns)

50.0

50.0

Temp. Rise

@ Idc

(°C Typ.)

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

39

34

34

34

23

23

23

14.4

14.4

14.4

Vt 1

(V-µSec. Max.)

98 xNs

98

98

65.3 xNs

65.3

65.3

98 xNs

98

98

65.3 xNs

65.3

65.3

98 xNs

98

98

65.3 xNs

65.3

65.3

98 xNs

98

98

65.3 xNs

65.3

65.3

113 xNs

113

113

98 xNs

98

98

98 xNs

98

98

2

2

2

2

2

2

2

2

2

2

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