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 @ 25°C - Operating Temperature -40°C to +125°C Prim/Sec Sec L Sec DCR V x τ Part No. Ratio (mH MIN) (Ω MAX) (MAX) FIS105NL 1:50 4.7 0.5 175 µVS FIS115NL 1:100 18 2.0 350 µVS FIS125NL 1:200 76 4.5 700 µVS FIS155NL 1:500 470 16.0 1750 µVS FIS1105NL 1:1000 1900 50.0 3500 µVS Notes: L: Inductance: (1-3) tested at 10 KHz & 10 mV Rt (Ω): Recommended Terminating Resistance * Contact Pulse for availability V x τ: V = Rt x ls τ = 1 Is (A): sec. current F(Hz): Frequency 2F 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 Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia Headquarters Pulse Electronics GmbH Pulse Electronics (ShenZhen) CO., LTD Room 2704/2705 3 Fraser Street 1F., No.111 Xiyuan Rd 15255 Innovation Drive Ste 100 Am Rottland 12 D708, Shenzhen Academy of Super Ocean Finance Ctr. 0428 DUO Tower Zhongli City San Diego, CA 92128 58540 Meinerzhagen Aerospace Technology, 2067 Yan An Road West Singapore 189352 Taoyuan City 32057 U.S.A. Germany The 10th Keji South Road, Shanghai 200336 Taiwan (R.O.C) Nanshan District, Shenzhen, China P.R. China 518057 Tel: 858 674 8100 Tel: 49 2354 777 100 Tel: 86 755 33966678 Tel: 86 21 62787060 Tel: 65 6287 8998 Tel: 886 3 4356768 Fax: 858 674 8262 Fax: 49 2354 777 168 Fax: 86 755 33966700 Fax: 86 2162786973 Fax: 65 6280 0080 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. © Copyright, 2018. Pulse Electronics, Inc. All rights reserved. 1 power.pulseelectronics.com P537.B (03/18) http://www.power.pulseelectronics.com/contact

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