MMF50SFRE1R4 Yageo

Through-hole resisT ors g eneral Type Melf Metal Film r esistors Normal & Miniature style MMF series FeATures Power Rating 1/6W, 1/4W, 0.4W, 1/2W, 0.6W, 1W Resistance Tolerance 0.1%, 0.25%, 0.5%, 1%, 2%, 5% T.C.R. 15ppm/C, 25ppm/C, 50ppm/C, 100ppm/C DerATiNg Cur Ve For resistors operated in ambient temperatures above 70C, power rating must be derated iNTroDuCTioN in accordance with the curve below. The MMF Series Melf Metal Film Resistors are 70 155 C Rated Load (%) 100 manufactured using a vacuum sputtering system 80 to deposit multiple layers of mixed metal alloys and passivative materials onto a carefully 60 treated high grade ceramic substrate. SMD 40 enabled structure. 20 20 40 60 80 100 120 140 160 Ambient Temperature (C) DiMeNsioNs Unit: mm sTYle DiMeNsioN Normal Miniature l D C Min. D MMF-12 MMF25S / MMF204 3.500.2 1.400.15 0.5 MMF-25 MMF50S / MMF207 5.900.2 2.200.1 0.5 C L MMF-50 MMF1WS 8.500.2 3.200.2 0.521 Note: eleCTriCAl ChArACTerisTiCs sTYle MMF-12 MMF25s MMF204 MMF-25 MMF50s MMF207 MMF-50 MMF1Ws Power Rating at 70C 1/6W 1/4W 0.4W 1/4W 1/2W 0.6W 1/2W 1W Maximum Working Voltage 150V 200V 250V 350V Maximum Overload Voltage 300V 400V 500V 700V Voltage Proof on Insulation 300V 500V 700V Resistance Range 0.22-3.9 for tol 5%, E96 series value, 4 - 1M for tol 1% E24 + E96 series value Operating Temp. Range -55C to +155C Temperature Coefficient 50ppm/C for 4 - 1M , 100ppm/C for 0.22 - 3.9 Note: Special value is available on request eNViroNMeNTAl ChArACTerisTiCs Per For MANCe TesT TesT MeTho D APPr Aise Shor t Time Overload IEC 60115-1 4.13 2.5 times RCWV for 5 sec. (Not more than maximum Overload Voltage) 0.5%+0.05 Voltage Proof on Insulation IEC 60115-1 4.7 In V-Block for 60 sec., test voltage as above table No Breakdown Temperature Coefficient IEC 60115-1 4.8 Between -55C to +155C By type >10,000M Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. Solderability IEC 60115-1 4.17 2455C for 30.5 Sec. 95% Min. coverage No deterioration of Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 50.5 Min. with ultrasonic coatings and markings Periodic-pulse Overload IEC 60115-1 4.39 4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off) 1.0%+0.05 Damp Heat Steady State IEC 60115-1 4.24 402C, 90-95% RH for 56 days, loaded with 0.1 times RCWV 2.0%+0.1 Endurance at 70C IEC 60115-1 4.25 702C at RCWV (or Umax., Whichever less) for 1,000 Hr. (1.5Hr.on, 0.5Hr. Off) 2.0%+0.1 Temperature Cycling IEC 60115-1 4.19 -55C Room Temp. +155C Room Temp. (5 cycles) 0.75%+0.05 Resistance to Soldering Heat IEC 60115-1 4.18 2603C for 101 Sec., immersed to a point 30.5mm from the body 0.5%+0.05 Note: RCWV(Rated Continuous Working Voltage) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less. Revision: 2020