Prepared : Qingli Wu

Approved: Xuwenbing

Date : 2001/02/19

Drawing no.: ISDN Transformer

REV.: A0

Page : 1/1

T1/CEPT/ISDN-PRI TRANSFORMER

A. General Specifications:

1. Extended and standard temperature range models

2. Dual and single through hole models available.

3. Models matched to leading transceiver ICS.

B. Electrical Specifications@25°C

1. Turn Ratio(PRI:SEC ±5%) : PIN2-6:1-3=1:1, PIN2-6:1-5=1:1.26

2. OCL: 1.5 mH Min @100KHz/0.2Vrms.

3. Cw/w: 40 pF Max

4. L.L: 0.40 µH Max@100KHz/0.2Vrms

5. DCR(pri) : 0.7 Ω Max

6. DCR(sec) : 0.9 Ω Max

7. Primary Pins : 2-6

8. .Isolation HI-POT : 1500 Vrms

C. Schematic & Mechanical :