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MF-LR550 Datasheet(PDF) 1 Page - Bourns Electronic Solutions |
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MF-LR550 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. Thermal Derating Chart - Ihold (Amps) Ambient Operating Temperature Model -40 °C -20 °C0 °C 23 °C 40 °C 50 °C 60 °C 70 °C 85 °C MF-LR190 2.8 2.5 2.3 1.9 1.6 1.5 1.4 1.2 1.0 MF-LR190S 2.8 2.5 2.3 1.9 1.6 1.5 1.4 1.2 1.0 MF-LR260 3.8 3.4 3.1 2.6 2.2 2.0 1.9 1.7 1.4 MF-LR260S 3.8 3.4 3.1 2.6 2.2 2.0 1.9 1.7 1.4 MF-LR380 5.5 4.9 4.4 3.8 3.3 3.0 2.8 2.5 2.1 MF-LR450 6.5 5.8 5.3 4.5 3.9 3.6 3.3 2.9 2.5 MF-LR550 8.0 7.1 6.2 5.5 4.7 4.3 4.0 3.6 3.0 MF-LR600 8.7 7.8 7.1 6.0 5.2 4.7 4.4 3.9 3.3 MF-LR730 10.5 9.5 8.6 7.3 7.4 6.8 6.2 5.5 4.5 MF-LR730/20 10.5 9.5 8.6 7.3 7.4 6.8 6.2 5.5 4.5 MF-LR900/20 12.7 11.4 10.0 9.0 7.5 6.8 6.2 5.5 4.5 MF-LR Series - PTC Resettable Fuses 0144T Electrical Characteristics Features ■ Axial leaded ■ Fully compatible with current industry standards ■ Weldable nickel terminals ■ Very low internal resistance ■ Operating currents to 9.0 Amps ■ RoHS compliant*, lead free ■ Agency recognition: Applications ■ Any application that requires protection at low resistances ■ Rechargeable battery packs ■ Cellular phones ■ Laptop computers Ihold Itrip Initial Max. Time Model V max. I max. Resistance To Trip Volts Amps Amperes Ohms Ohms Amperes Seconds Watts At 23 °C At 23 °C At 23 °C At 23 °C At 23 °C At 23 °C Hold Trip Min. Max. Max. Typ. MF-LR190 15 100 1.90 3.90 0.039 0.072 0.102 9.5 5.0 1.2 MF-LR190S 15 100 1.90 3.90 0.039 0.072 0.102 9.5 5.0 1.2 MF-LR260 15 100 2.60 5.80 0.020 0.042 0.063 13.0 5.0 1.3 MF-LR260S 15 100 2.60 5.80 0.020 0.042 0.063 13.0 5.0 2.5 MF-LR380 15 100 3.80 8.30 0.013 0.026 0.037 19.0 5.0 2.5 MF-LR450 20 100 4.50 8.90 0.011 0.020 0.028 22.5 5.0 1.4 MF-LR550 20 100 5.50 10.50 0.009 0.019 0.022 27.5 5.0 1.4 MF-LR600 10 100 6.00 11.70 0.007 0.014 0.016 30.0 5.0 2.8 MF-LR730 10 100 7.30 14.10 0.006 0.012 0.015 30.0 5.0 3.0 MF-LR730/20* 20 100 7.30 14.10 0.006 0.012 0.015 30.0 5.0 3.0 MF-LR900/20* 20 100 9.00 16.70 0.006 0.010 0.014 45.0 5.0 3.0 1 Hour (R1) Post-Trip Resistance Tripped Power Dissipation Operating/Storage Temperature ........................-40 °C to +85 °C Maximum Device Surface Temperature in Tripped State ................................................125 °C Passive Aging......................................................+70 °C, 1000 hours ....................................±10 % typical resistance change Humidity Aging....................................................+85 °C, 85 % R.H. 7 days ..........................±10 % typical resistance change Vibration ..............................................................MIL-STD-883C, 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 UL File Number ..................................................E 174545S CSA File Number ................................................CA 110338 TÜV File Number ................................................R2057213 Test Procedures And Requirements For Model MF-LR Series TV Rheinland *Itrip is approximately two times Ihold. * TÜV recognition pending. |
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