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

Current Sense Transformers

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• Designed for Switching Supply-Current Sense Applications

• Optimal Performance at 250 KHz and above

• Operating Temperature : -25°C to +105°C

• UL1446 Class B Insulating System

• Class B 130°C Insulation System

• UL94V0 Recognized Materials

EPC3108G-XXX

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

Electrical Parameters @ 25° C

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

CSC3108G-XXX

Rev. 2

1/11/07 RR

Inductance

(µH Min.)

@ 10 KHz

3000

2000

1430

980

500

320

180

Secondary

DCR

(

Ω Max.)

7.70

6.20

5.30

4.75

2.50

1.35

1.00

6.0

6.0

6.0

6.0

6.0

6.0

6.0

Primary

(Amps Max.)

10

10

10

10

10

10

10

Insulation

Resistance

(meg

Ω Min.)

PCA

Part

Number

EPC3108G-125

EPC3108G-100

EPC3108G-85

EPC3108G-70

EPC3108G-50

EPC3108G-40

EPC3108G-30

Turns

Ratio

(Pri. to Sec.)

1:125

1:100

1:85

1:70

1:50

1:40

1:30

• Note : Clamp cover is optional •

Package

Recommended Pad Layout

.063

(1.60)

.047

(1.20)

.098

(2.50)

.073

(1.85)

.051

(1.30)

.118

(3.00)

.106

(2.70)

.020

(.500)

.078

(2.00)

.027 (.700)

3

2

1

5

6

4

8

7

.210

Max.

(5.33)

.330 Max.

(8.50)

Copper Plate

.275 ± .015

(6.99 ± .381)

.073

(1.85)

92.5

75.0

62.5

52.5

27.5

30.0

22.5

Vt

(V-µSec. Max.)

Schematic

7

8

6

4

1:N

Application Circuit

G

Ipk

Isecondary

Vref

D

S

N

RT

1T

Power Transformer

Current Sense Transformer

V Ref. = Ipk RT/N