T1/E1CEPT/ISND-PRI 16 Channel Transformer RoHS peak reflow temperature rating: 245�C Optimized for enhanced EMC performance Transformers with optional common mode chokes on both transmit and receive channels Isolation Voltage: 1500 Vrms Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C Line Side OCL (mH MIN) RoHS Compliant Part Number w/o CMC w/ CMC TX1680NL - 1.2 TX1681NL - - TX1682NL Turns Ratio (Pri:Sec ±2%) Cw/w (pF MAX) 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 USA 858 674 8100 Germany 49 7032 7806 0 1 Singapore 65 6287 8998 pulseelectronics.com Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 T695.B (10/14) T1/E1CEPT/ISND-PRI 16 Channel Transformer Schematics TX1680NL TX1681NL TX1682NL 1 2 3 4 1CT:2 9 1:2CT 6 24 23 22 21 7 1CT:2 10 11 12 4 18 24 23 22 16 1:2CT 19 1 2 3 15 14 13 1CT:2 9 1:2CT 6 21 7 1CT:2 10 11 12 4 18 24 23 22 16 1:2CT 19 1 2 3 15 14 13 1CT:2 9 1:2CT 6 21 19 7 1CT:2 10 11 12 4 18 24 23 22 16 1:2CT 1 2 3 15 14 13 1CT:2 9 1:2CT 10 11 12 1CT:2 18 6 21 19 7 16 1:2CT 15 14 13 For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 Aerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 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. © Copyright, 2014. Pulse Electronics, Inc. All rights reserved. 2 pulseelectronics.com T695.B (10/14)