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

ISDN Transformer

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• S/T Interface Applications

• Dual Transformer in SMD Package

• Optional Packaging : Tubes or Tape & Reel

• 2000 Vrms Isolation

EPA2731

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

CSA2731 Rev. 2

7/15/03

Schematics

Package

.700

(17.78)

0°-8°

.040

(1.02)

.008/.012

(.203/.305)

Solder Pad

Layout

.750

(19.05)

.100

(2.54)

.030

(.762)

.120

(3.05)

.380

(9.65)

.100

(2.54)

.016/.022

(.406/.559)

.010/.015

(.254/.381)

PCA

EPA2731

D.C.

.940

(23.88)

.520

(13.21)

.120

(3.05)

.700

(17.78)

Pin 1

I.D.

Pri. Dist.

Capacitance

(pF Max.)

Turns Ratio

(± 2%)

Leakage

Inductance

(µH Max.)

DCR

(

Ω ± 25%)

Interwinding

Capacitance

(pF Max.)

Primary

Inductance

(mH Min.)

1

2

16

4

314

13

15

5

6

12

8

710

9

11

Pri,

Sec.

Pri,

Sec.

AB

A

80

A

1:2

A

15

Pri.

2.3

A

100

Pins 1-4

22

Pins 5-8

22

B

80

B

1:2

B

15

Sec.

4

B

100