YAGEO CORPORATION LEADED RESISTORS MFR Series Metal Film Resistors Normal & Miniature Style FEATURES Power Rating 1/6W, 1/4W, 1/2W, 1W, 2W Resistance Tolerance ± 0.1%, ± 0.25%, ± 0.5%, ±1% T.C.R. ± 15ppm/ºC, ± 25ppm/ºC, ± 50ppm/ºC, ± 100ppm/ºC DERATING CURVE Rated Load (%) 70ºC 100 INTRODUCTION 80 The MFR Series Metal Film Resistors are 60 manufactured using vacuum sputtering system 40 to deposit multiple layers of mixed metals and 20 passivative materials onto a carefully treated high grade ceramic substrate, the resistors are 20 40 60 80 100 120 140 160 180 Ambient Temperature (ºC) coated with layers of blue lacquer. HOT-SPOT TEMPERATURE Surface Temp. Rise (ºC) Measuring Position 200 MFR2WS 150 100 50 0 25 50 75 MFR200 MFR1WS MFR100 MFR-50 MFR-25 MFR-12 MFR50S MFR25S Applied Load, % of RCWV 100 DIMENSIONS Unit : mm STYLE ød H L øD DIMENSION Normal Miniature L øD H ød MFR-12 MFR25S 3.3± 0.4 1.8± 0.3 28± 2.0 0.5± 0.05 MFR-25 MFR50S 6.3± 0.5 2.3± 0.3 28± 2.0 0.6± 0.05 MFR-50 MFR1WS 9.0± 0.5 3.2± 0.5 26± 2.0 0.6± 0.05 MFR100 MFR2WS 11.5± 1.0 4.5± 0.5 35± 2.0 0.8± 0.05 MFR200 – 15.5± 1.0 5.0± 0.5 33± 2.0 0.8± 0.05 2 Note : ELECTRICAL CHARACTERISTICS STYLE MFR-12 MFR25S MFR-25 MFR50S MFR-50 Power Rating at 70ºC 1/6W 1/4W Operating Temp. Range -55ºC to +155ºC Maximum Working Voltage 200V 200V 250V 300V 350V 400V 500V 500V 500V Maximum Overload Voltage 400V 400V 500V 600V 700V 800V 1000V 1000V 1000V Dielectric Withstanding Voltage 300V 400V 500V 500V 500V 700V 1000V 1000V 1000V Value Range ± 0.5%, ± 1% 10Ω~1MΩ Value Rang ± 0.1%, ± 0.25% 100Ω~100KΩ Temperature Coefficient (by Type) ± 15ppm/ºC, ± 25ppm/ºC, ± 50ppm/ºC, ± 100ppm/ºC 1/2W MFR1WS MFR100 MFR2WS MFR200 1W 2W * Resistance Range for standard resistance, below or over this resistance on request. ENVIRONMENTAL CHARACTERISTICS PERFORMANCE TEST TEST METHOD APPRAISE Short Time Overload JIS-C-5202 5.5 2.5 Times RCW V for 5 Seconds ± (0.25%+0.05Ω) Dielectric Withstanding Voltage JIS-C-5202 5.7 in V-Block for 60 Seconds by Type Temperature Coefficient of Resistance JIS-C-5202 5.2 -55ºC to +155ºC by Type Insulation Resistance JIS-C-5202 5.6 in V-Block >10000MΩ Solderability JIS-C-5202 6.5 235ºC for 5± 0.5 Seconds 95% Min. Coverage Resistance to Solvent JIS-C-5202 6.9 Trichroethane for 1 Min. with Ultrasonic No Deterioration of Coatings and Markings Terminal Strength Direct load for 10 Sec. in The Direction of The Terminal Leads ≥2.5kg (24.5N) Pulse Overload JIS-C-5202 5.8 4 Times RCW V 10000 Cycles (1 Sec. on , 25 Sec. off) ± (2%+0.05Ω) Load Life in Humidity JIS-C-5202 7.9 40± 2ºC, 90~95% RH at RCW V for 1000 Hrs. (1.5 Hrs. on , 0.5 Hrs. off ) ± (1.5%+0.05Ω) Load Life JIS-C-5202 7.10 70ºC at RCW V for 1000 Hrs. (1.5 Hrs. on , 0.5 Hrs. off) ± (1.5%+0.05Ω) Temperature Cycling JIS-C-5202 7.4 -55ºC ➞ Room Temp. ➞+155ºC➞ Room Temp. for 5 Cycles ± (0.25%+0.05Ω) Resistance to Soldering Heat JIS-C-5202 6.4 350ºC± 10ºC for 3± 0.5 Seconds ± (0.25%+0.05Ω) * Rated Continuous Working Voltage (RCW V)= Power Rating x Resistance Value