ADSL Line Transformers For ST Microelectronics Chipsets Approved by ST Microelectronics for use with Centaure ST70136, ST70137 and ST70235 chipsets Excellent THD performance in a small footprint UL 1950 approved for supplementary insulation requirements for working voltages up to 250Vrms Electrical Specifications @ 25�C - Operating Temperature -40�C to 85�C Part Number Application Mounting Turns Ratio (± 2%) OCL @ 10 KHz, 0.1 V (1-4) with (2-3) shorted Leakage Inductance @ 100 kHz, 0.1 V (1-4) with (2-3, 7-10, 8-9) shorted B2205 B2205NL SMT CO 480 μH (± 10%) 5.3 μH MAX Additional Specifications DC Resistance Part Number (1-4)(w/2-3 shorted) (10-7)(w/8-9 shorted) 2.0 Ω MAX B2323 2.2 Ω MAX Isolation Voltage (Vrms) Longitudinal Balance (dB MAX) THD (dB MAX) 1500 -55 -80 Notes: Transformers are shipped in trays unless Tape & Reel is specified. Please add the suffix “T” (i.e. B2323T) for Tape & Reel orders. Mechanical Schematic B2323 Weight .........................6.2 grams Tray ..................................60/tray Inches Dimensions: mm Unless otherwise specified, all tolerances are ± .010 0,25 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 Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 7032 78060 Fax: 49 7032 7806 135 Pulse China Headquarters B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Road High-Tech Zone Nanshan District Shenzen, PR China 518057 Tel: 86 755 33966678 Fax: 86 755 33966700 Pulse North China Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Road West Shanghai 200336 China Pulse South Asia 135 Joo Seng Road #03-02 PM Industrial Bldg. Singapore 368363 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6287 8998 Pulse North Asia 3F, No. 198 Zhongyuan Road Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Fax: 886 3 4356823 (Pulse) Fax: 886 3 4356820 (FRE) 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. 1 pulseelectronics.com B818.A (02/12)