T1/E1CEPT/ISDN-PRI 16 CHANNEL TRANSFORMER RoHS peak reflow temperature rating: 245C Optimized for enhanced EMC performance Transformers with optional common mode chokes on both transmit and receive channels Isolation Voltage: 1500 Vrms Electrical Specifications @ 25C -- Operating Temperature -40C to +85C RoHS Compliant Part Number Line Side OCL (mH MIN) Cw/w (pF MAX) w/o CMC w/CMC TX1680NL -- 1.2 TX1681NL -- -- TX1682NL Turns Ratio (Pri:Sec 2%) Primary Pins TX RX TX RX 35 1:2CT 1CT:2 4-6, 21-19 1-3, 24-22 1.2 35 1:1CT 1CT:1 4-6, 21-19 1-3, 24-22 1.2 35 1:2CT 1CT:2 4-6, 21-19 1-3, 24-22 NOTES: 1. Other Transformer/Choke modules available. Please contact Pulse Applications Engineering. Mechanical TX1680NL, TX1681NL, TX1682NL Weight ................7.0 grams Pan Size ..................60/Tray Dimensions: Inches mm Unless otherwise specified, all tolerances are .010 0,25 USA 858 674 8100Germany 49 7032 7806 0Singapore 65 6287 8998Shanghai 86 21 62787060China 86 755 33966678Taiwan 886 3 4356768 www.pulseeng.com 1 T695.A (3/10) T1/E1CEPT/ISDN-PRI 16 CHANNEL TRANSFORMER Schematics TX1680NL TX1681NL TX1682NL 1 2 3 4 1CT:2 1 1 2 3 9 1:2CT 6 4 3 2 7 1CT:2 10 11 12 18 16 1:2CT 9 15 14 13 4 1CT:2 7 9 1:2CT 10 11 12 6 24 23 22 21 1CT:2 18 16 1:2CT 15 14 13 19 1 2 3 4 1CT:2 21 1 2 3 9 1:2CT 6 24 23 22 7 1CT:2 10 11 12 4 18 24 23 22 16 1:2CT 19 15 14 13 1CT:2 9 1:2CT 1 1 1 1CT:2 1 6 21 19 7 1 1:2CT 1 1 1 For More Information: Pulse Worldwide Headquarters Pulse Europe Pulse China Headquarters Pulse North China Zeppelinstrasse 15 12220 World Trade Dr. D-71083 Herrenberg San Diego, CA 92128 Germany U.S.A. www.pulseeng.com Tel: 858 674 8100 Fax: 858 674 8262 B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Rd. High-Tech Zone Nanshan District Shenzen, PR China 518057 Tel: 49 7032 7806 0 Tel: 86 755 33966678 Fax: 49 7032 7806 135 Fax: 86 755 33966700 Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Rd. West Shanghai 200336 China Tel: 86 21 62787060 Fax: 86 2162786973 Pulse South Asia Pulse North Asia 3F, No. 198 Zhongyuan Rd. Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) 135 Joo Seng Rd. #03-02 PM Industrial Bldg. Singapore 368363 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. (c) Copyright, 2010. Pulse Engineering, Inc. All rights reserved. www.pulseeng.com 2 T695.A (3/10)