T1/E1/CEPT/ISDN-PRI INTERFACE MODULES Dual Surface Mount Transformer Modules, 1500 Vrms, Extended Temperature Range RoHS peak reflow temperature rating 245°C Optimized for enhanced EMC performance Extended temperature range Dual SMT package contains transformers with common mode chokes on both transmit and receive channels Models matched to leading transceiver ICs Patented Interlock Base construction for high reliability UL1950 approved Electrical Specifications @ 25°C RoHS Compliant Part Number Secondary OCL @ 25°C (mH MIN) Turns Ratio 2 (Pri:Sec ± 2%) EXTENDED TEMPERATURE RANGE MODELS 1 LL (µH MAX) CW/W (pF MAX) DCR Pri (Ω MAX) Package/ Schematic Primary Pins – OPERATING TEMPERATURE -40°C TO +85°C T1212NL 1CT:1CT & 1CT:2CT 1.20 .60 35 .90 AN/1 1-3, 4-6 T1215NL 1CT:1.41CT & 1CT:1.41CT 1.20 .60 30 .70 AN/1 1-3, 4-6 T1217NL 1CT:2.42CT & 1CT:2.42CT 1.20 .60 25 .60 AN/1 1-3, 4-6 T1219NL 1CT:2.4CT & 1CT:1CT 1.20 .60 35 .90 AN/1 1-3, 4-6 1. Extended Temperature Range Models — For extended temperature range transformers (-40°C to +85°C operating temperature range), OCL (Open Circuit Inductance) is specified at both -40°C and +25°C. At -40°C, OCL is 600 µH minimum. All other parameters are specified at +25°C only. Standard temperature range is 0°C to +70°C. 2. Turns ratio is specified primary:secondary (CT = Center Tap). 3. Standard packaging for the surface mount package is anti-static tubes. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number, (i.e. T1212NLT). Mechanical Schematic AN .120 3,05 .675 MAX 17,15 12 .600 MAX 15,24 12X 1 .030 0,76 7 .456 MAX 11,58 Part Number DATE CODE 1 .640 16,26 .400 10,16 .500 12,70 6 .100 TYP 2,54 .100 2,54 .085 2,16 .050 TYP 1,27 SUGGESTED PAD LAYOUT .340 MAX 8,64 .004/0,10 MAX Dimensions: .010 / .020 0,25 / 0,51 1 12 2 11 3 10 4 9 5 8 6 7 0°-8° .040 / .050 1,02 / 1,27 Inches. .010 Unless otherwise specified, all tolerances are ± mm 0,25 Weight . . . . . . . . . . . . . . .4.0 grams Tape & Reel . . . . . . . . . . . . 250/reel Tube . . . . . . . . . . . . . . . . . . 30/tube USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 4643715 www.pulseeng.com 1 T660.C (10/09) T1/E1/CEPT/ISDN-PRI INTERFACE MODULES Dual Surface Mount Transformer Modules, 1500 Vrms, Extended Temperature Range Application Notes 1. ET Product — All coils have an ET product of 10 V-µsec minimum. 2. Flammability — Materials used in these products are recognized as UL94-VO approved. Products meet the requirements of IEC 695-2-2 (Needle Flame Test). 3. 4. 7. Surge Voltage Capability – All transformers and chokes meet surge voltage tests according to the most stringent regulatory documents, when used with the proper voltage and current suppression devices: Metallic Voltage: Longitudinal Voltage: 800 V peak, 10/560 µsec 2,400 V peak, 10/700 µsec Balance Characteristics — The transformers meet the requirements for longitudinal balance of FCC part 68. 8. Common Mode Rejection Ratio — the CMRR for all transformers is better than 50 dB at 1 MHz. Isolation Voltage — 100% of transformers are tested during production to the specified isolation voltage level. 9. General Information — The transformers are specifically designed for use in 1.544 Mbps (T1), 2.048 Mbps (CEPT) and ISDN Primary Rate Interface (PRI) applications. They are matched to the majority of the line interface transceiver ICs currently available. Use of the proper transformer allows the interface circuit to comply with ITU-T G.703 and other standards regarding pulse waveform, return loss, and balance. 5. Crosstalk Attenuation — In the packages which contain transmit and receive transformers side by side, sufficient crosstalk attenuation is achieved by the inherent characteristics of the toroid cores as well as by their proper positioning. The crosstalk attenuation is typically 65 dB or better. 6. Return Loss — ITU-T G.703 and the European national regulatory documents specify minimum return loss levels. The transformers will allow these limits to be complied within the situations where they are applicable. Frequency 50-100 KHz 100 KHz-2 MHz 2-3 MHz Return Loss XMIT RCV 9 dB 12 dB 15 dB 18 dB 11 dB 14 dB 10. Transformer Selection Guide — Please contact Pulse Application Engineering or see our website for the latest Pulse Transformer Selection Guide. For More Information: Pulse Worldwide Headquarters Pulse Europe Pulse China Headquarters Pulse North China Einsteinstrasse 1 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 135 Joo Seng Rd. #03-02 PM Industrial Bldg. Singapore 368363 Tel: 65 6287 8998 Fax: 65 6287 8998 Pulse North Asia 3F, No. 198 Zhongyuan Rd. Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Fax: FRE 886 3 4356820 Pulse: 886 3 4356823 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, 2009. Pulse Engineering, Inc. All rights reserved. www.pulseeng.com 2 T660.C (10/09)