Current Sense Transformers FIS 1X5 Series Current sense transformers provide output feedback to the pulse control circuitry allowing low-cost regulation of switch-mode power supplies Fully encapsulated construction Isolation primary to secondary: 4000V AC 25A maximum primary current, 500kHz maximum frequency Applications: switch-mode power supplies, lighting, switch controls Electrical Specifications @ 25C - Operating Temperature -40C to +125C Part No. Prim/Sec Ratio Sec L (mH MIN) Sec DCR ( MAX) Vx (MAX) FIS105NL 1:50 4.7 0.5 175 VS FIS115NL 1:100 18 2.0 350 VS FIS125NL 1:200 76 4.5 700 VS FIS155NL 1:500 470 16.0 1750 VS FIS1105NL 1:1000 1900 50.0 3500 VS Notes: L: Inductance: (1-3) tested at 10 KHz & 10 mV V x : V = Rt x ls = 2F1 Rt (): Recommended Terminating Resistance Is (A): sec. current F(Hz): Frequency * Contact Pulse for availability Mechanicals Schematics FISXXX 3 2 5 1 FIS105NL/15NL/25NL/55NL FIS1105NL Weight .......................7.0 grams ....................8.0 grams Tray ................................30/tray ........................34/tray Dimension: mm Unless otherwise specified, all tolerances are 0.50 For More Information Pulse Worldwide Pulse Europe Headquarters Pulse Electronics GmbH 15255 Innovation Drive Ste 100 Am Rottland 12 San Diego, CA 92128 58540 Meinerzhagen U.S.A. Germany Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 2354 777 100 Fax: 49 2354 777 168 Pulse China Headquarters Pulse Electronics (ShenZhen) CO., LTD D708, Shenzhen Academy of Aerospace Technology, The 10th Keji South Road, Nanshan District, Shenzhen, P.R. China 518057 Pulse North China Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Road West Shanghai 200336 China Pulse South Asia 3 Fraser Street 0428 DUO Tower Singapore 189352 Pulse North Asia 1F., No.111 Xiyuan Rd Zhongli City Taoyuan City 32057 Taiwan (R.O.C) Tel: 86 755 33966678 Fax: 86 755 33966700 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6280 0080 Tel: 886 3 4356768 Fax: 886 3 4356820 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, 2018. Pulse Electronics, Inc. All rights reserved. 1 power.pulseelectronics.com P537.B (03/18) http://www.power.pulseelectronics.com/contact