ISDN S-Interface Low Profile Dual SMT Transformers RoHS peak reflow temperature rating 245C Meets pulse waveform template of CCITT I.430 when recommended transformer and chip pair are used Excellent longitudinal balance 2 kVrms isolation voltage Available in Tape & Reel or tube packaging UL recognized Electrical Specifications 25C - Operating Temperature 0C to 70C A B L DCR Sec Ratio OCL Pri L Sec CW/W CD Pri DCR Pri C RoHS (W 25%) D I (2%) (mH MIN) (H MAX) (pF MAX) (pF MAX) ( 25%) DC Complian (mA MAX) Part Number A B A & B A B A & B A B A B A B T5008NL 1:1 1:1 22 5 5 100 42 42 2.4 2.4 2.4 2.4 1750 U.S. Patent No. 5,015,981Z Notes: A. A center-tapped winding can be created by connecting two ends of a split center winding together on the printed circuit board. In ISDN-S applications, the primary winding is the line side transforme winding. B. Minimum primary inductance and maximum distributed capacitance satisfy the transmitter output and receiver input impedance requiremens of CCITT I.430 for both the TE and the NT. The maximum distributed capacitance allows sufficient margin for the capacitance of the IC and a protection diode network. It is consistent with the overall maximum value specified and the permitted length of the basic access TE cord. C. The maximum specified unbalanced DC current capability is based on 20 mH minimum primary OCL. Mechanical Schematic T5008NL 16 1514 13 12 1110 SEC PRI 1423 56 7 CO CO Inches Dimensions: mm .010 Unless otherwise specified, all tolerances are 0,25 USA 858 674 8100 Germany 49 7032 7806 0 Singapore 65 6287 8998 Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 1 pulseelectronics.com T613.E (04/12)ISDN S-Interface Low Profile Dual SMT Transformers IC IC Dual Packaging Information Manufacturer Part Number Surface Mount Type SMT TX & RX Part Weight 7 grams MC145474/145475 Parts/Tube 20 Motorola T5008NL MC145574 Parts/Tray* 50 Parts/Reel* 200 Reel Diameter 13 inches Tape Width 44 mm Pitch 24 mm Notes: Standard packaging for the transformer is anti-static tubes. Optional Tape & Reel packaging can be ordered by adding a T suffix to the end of the part number, (i.e. T5008NLT). Application Notes 1. General Information - The S-interface is the standardized Transformers described in this data sheet are matched to four-wire digital telephone access point defined by the the transceivers offered by the IC manufacturers listed. CCITT I-series recommendations for the Integrated Services Digital Network. This basic rate succes 2. Safety Standards Recognition - All transformers listed in accommodates two 64 kBps B-channels for more this data sheet are recognized to UL 1459 and UL 1950 as information, one 16Kbps D-channel intended for a basic insulation barrier. signaling and control, and 48Kbps for framing and other purposes, giving a total rate of 192Kbps. The CCITT 3. Flammability - Materials used in the products are physical layer recommends that the user network recognized UL94-VO. Products meet the requiremens of interface be transformer coupled. IEC 695-2-2 (needle flame test). The transformer provides isolation for the line card or the 4. For more application notes please refer to data sheet terminal from the line. It is also a way to provide phantom T604. power feeding to the terminal over the S-loop. Each end requires a transmit and a receive transformer. Chokes are used in some applications to reduce common mode noise. Common Mode Chokes Refer to data sheet G002 for selection of low and high frequency common mode chokes. For More Information Pulse Worldwide Pulse Europe Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia Headquarters Einsteinstrasse 1 B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 12220 World Trade Drive D-71083 Herren- Aerospace Technol- Super Ocean Finance 03-02 Zhongyuan Road San Diego, CA berg ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 92128 Germany 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 U.S.A. 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, 2012. Pulse Electronics, Inc. All rights reserved. 2 pulseelectronics.com T613.E (04/12)