Offline Flyback Converter Short Circuit Protection Bourns PortNote solutions provide protection recommendations for typical port threats. Solution Products Objective e PTh PTC resettable fuse protects the diode and e oTh bjective of this PortNote Solution is the transformer during transient overloading the low-cost overload protection of offline by going high ohmic and then resets back to a power supplies, by using high temperature low ohmic value once the overload is removed. Bourns Multifuse PPTC Resettable Fuses. High temperature Bourns Multifuse PPTC Transient overload testing on low-power offline resettable fuses have temperature coefficients converters can be stressful on the output diode which are half the amount of standard and the transformer. The high turns ratio Multifuse PPTCs, giving them more consistent MF-RHT070-0 converts relatively low-peak currents in the hold and trip characteristics. primary side into peak currents of several amps on the secondary side, which can destroy the diode and overheat the transformer. Benefit Solution e BTh ourns Model MF-RHT070-0 resettable 1 Multifuse PPTC Resettable Fuse: fuse reduces the need for larger, more MF-RHT070-0 expensive diodes. It also reduces the need for larger cores in the transformer. Compliance EN 60335, IEC 60730 (low-power circuit test) IN+ OUT+ DC Link 10.0 V MF-RHT070-0 0.3 A 85-260 V rms 300 H 10:1 Load IN- OUT- 67 kHz (Control Loop Omitted for Clarity) To order samples, click on the e sTh chematic above illustrates the application protection and does not constitute the complete circuit design. Request Sample button. Customers should verify actual device performance in their specic afi pplications. www.bourns.com Americas: Tel +1-951 781-5500 EMEA: Tel +36 88 520 390 Asia-Pacific: Tel +886-2 256 241 17 Email americus bourns.com Email eurocus bourns.com Email asiacus bourns.com COPYRIGHT 2018 BOURNS, INC. 4/18 e/K1820 PortNote is a registered service mark of Bourns, Inc. Bourns and Multifuse are registered trademarks of Bourns, Inc. in the U.S. and other countries.X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for Circuit Protection Kits category: Click to view products by Bourns manufacturer: Other Similar products are found below : 96-501A STANDARD SAMPLE KIT 4030-02 02800.0-01 MC-600 4879275 4879279 4879315 4879333 4879338 4879374 4879626 GSK-260 B72499A9999K199 0RBOX006Z B57888S0888M888 B72499I9999K199 B72499S9999K199 01610.0-01 B57999V5999J199 STD sample kit DK-IsoMOV-04 DK-IsoMOV-02 DK-IsoMOV-03 SF-KIT-AUTO-1 SF-KIT-AUTO-2 SF-KIT-HC-1 SF-KIT-HV-1 SF- KIT-IEC-1 8C4-B-B21 MAI X1180-01-XT202-1A X1180-01-ST201-4A Kit-GG01 00227064 00599362 00680300 0FHZ00854-BX 502069705 01602.0-00 B74999T9999M099 96-500A ZENER-KIT A-2130 B57999V2999J199 820999 Mini sample kit MS sample kit KITTVSDIODE1TOBO1 4030-01