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MF-RHT450-2 Datasheet(PDF) 1 Page - Bourns Electronic Solutions |
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MF-RHT450-2 Datasheet(HTML) 1 Page - Bourns Electronic Solutions |
1 / 4 page * RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MF-RHT Series - PTC Resettable Fuses Max. Time Tripped Ihold Itrip To Trip Power Resistance Dissipation Model Amperes Ohms Amperes Seconds Watts V max. I max. at 23 °C at 23 °C at 23 °C at 23 °C at 23 °C Volts Amps Hold Trip RMin. R1Max. Max. Typ. (Post Trip) MF-RHT070 16 40 0.7 1.4 0.3 0.8 3.5 4.0 1.4 MF-RHT200 16 100 2.0 3.8 0.045 0.110 12.5 3.0 1.4 MF-RHT450 16 100 4.5 7.8 0.022 0.054 22.5 3.0 3.6 MF-RHT650 16 100 6.5 12.0 0.011 0.026 32.5 5.5 4.3 MF-RHT750 16 100 7.5 13.1 0.0094 0.022 37.5 7.0 4.5 MF-RHT1300 16 100 13.0 24.0 0.0041 0.010 60.0 13.0 6.9 Electrical Characteristics RH75 0 4180S Features ■ Operating temperature range up to 125 °C ■ Low thermal derating factor ■ Higher hold currents at elevated temperature ■ Choice of operating currents ■ RoHS compliant* and Pb free Applications ■ Protection of automotive circuitry including engine control modules ■ Overcurrent surge protection of electronic equipment required to operate at high operating temperature ranges ■ Resettable fault protection of general electronic equipment Thermal Derating Chart - Ihold (Amps) Operating Temperature ..............................................................-40 °C to +125 °C Storage Temperature ................................................................-40 °C to +85 °C Passive Aging ............................................................................+85 °C, 1000 hours ..........................................................±15 % typical resistance change Humidity Aging ..........................................................................+85 °C, 85 % R.H. 1000 hours ........................................±15 % typical resistance change Thermal Shock ..........................................................................MIL-STD-202, Method 107, ............................................±10 % typical resistance change +125 °C to -40 °C,10 cycles Vibration ....................................................................................MIL-STD-883C, Method 2007.1, Condition A..................No change Environmental Characteristics Test Test Conditions Accept/Reject Criteria Visual/Mech. ......................................Verify dimensions and materials ............................................Per MF physical description Resistance..........................................In still air @ 23 °C ..................................................................Rmin ≤ R ≤ R1max Time to Trip ........................................At specified current, Vmax, 23 °C ........................................T ≤ max. time to trip (seconds) Hold Current ......................................30 min. at Ihold ......................................................................No trip Trip Cycle Life ....................................Vmax, Imax, 100 cycles ........................................................No arcing or burning Trip Endurance ..................................Vmax, 48 hours......................................................................No arcing or burning Solderability ......................................MIL-STD-202, Method 208....................................................95 % min. coverage Test Procedures And Requirements For Model MF-RHT Series Ambient Operating Temperature Model -40 °C -20 °C0 °C 23 °C 40 °C 50 °C 60 °C 70 °C 85 °C 125 °C MF-RHT070 0.95 0.87 0.79 0.7 0.62 0.56 0.51 0.47 0.39 0.17 MF-RHT200 2.71 2.49 2.26 2.00 1.77 1.60 1.46 1.34 1.11 0.49 MF-RHT450 6.1 5.6 5.1 4.5 4.0 3.6 3.3 3.0 2.5 1.1 MF-RHT650 8.8 8.1 7.4 6.5 5.7 5.3 4.8 4.3 3.6 1.6 MF-RHT750 10.2 9.4 8.6 7.5 6.6 6.1 5.6 5.0 4.1 1.9 MF-RHT1300 17.7 16.3 14.8 13.0 11.4 10.5 9.6 8.6 7.2 3.3 Circuit Protection Division Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com |
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