YAGEO CORPORATION LEADED RESISTORS Metal Oxide Film Resistors FLAME-PROOF TYPE Normal & Miniature Style [ RSF Series ] FEATURES Low Cost, Prompt Delivery High Power-to-Size Ratio for Significant Space Savings Complete Flameproof Construction-UL 1412 High Surge/Overload Capability Non-Inductive Design Wide Resistance Range: 1Ω~1MΩ Resistance ToLerance: ± 5% INTRODUCTION DERATING CURVE These Metal Oxide Resistors offer excellent Rated Load (%) performance in applications where stability 80 and uniformity of characteristics are desired. 60 They provide lower cost alternatives to 40 Carbon Composition Resistors and General 70ºC 100 20 Purpose Metal Films. Metal Oxides also can 50 replace many low power General Purpose 100 150 200 250 Ambient Temperature (ºC) wirewound applications, saving both money and time, with shorter delivery cycles. HOT-SPOT TEMPERATURE The normal style & the miniature style of RSF Surface Temp. Rise (ºC) Measuring Position 150 RSF500 RSF300 RSF2WS RSF200 100 RSF100 50 RSF50S RSF-50 200 series are coated with layers of gray and pink RSF5WS RSF3WM, RSF5SS RSF3WS RSF1WS colors flame-proof lacquer respectively. 0 25 50 75 100 Applied Load, % of RCWV DIMENSIONS Unit : mm ød H L øD STYLE Normal – RSF-50 – RSF100 RSF200 RSF5SS RSF300 RSF500 Miniature RSF50S – RSF1WS RSF2WS RSF3WS RSF3WM RSF5WS – DIMENSION L 6.3± 0.5 9.0± 0.5 9.0± 0.5 11.5± 1.0 15.5± 1.0 17.5± 1.0 24.5± 1.0 24.5± 1.0 øD 2.3± 0.3 3.2± 0.3 3.2± 0.3 4.5± 0.5 5.0± 0.5 6.5± 1.0 8.5± 1.0 8.5± 1.0 H 28± 2.0 26± 2.0 26± 2.0 35± 2.0 33± 2.0 32± 2.0 38± 2.0 38± 2.0 ød 0.6± 0.05 0.6± 0.05 0.6± 0.05 0.8± 0.05 0.8± 0.05 0.8± 0.05 0.8± 0.05 0.8± 0.05 10 Note : ELECTRICAL CHARACTERISTICS STYLE RSF50S Power Rating at 70ºC 1/2W Operating Temp. Range -55ºC to +155ºC Maximum Working Voltage 250V 250V 300V 350V 350V Maximum Overload Voltage 400V 400V 500V 600V Dielectric Withstanding Voltage 350V 350V 400V 500V Value Range ± 5% 1Ω~510KΩ Temperature Coefficient ± 300ppm/ºC RSF-50 RSF1WS RSF100 1W RSF2WS RSF200 RSF3WS/ RSF300 RSF3WM RSF5SS/ RSF5WS 3W 5W 350V 400V/450V 500V 500V/600V 750V 600V 600V 700V/700V 800V 800V/800V 1000V 500V 500V 600V/600V 700V 700V/800V 800V 2W RSF500 * Standard resistance is 1Ω~510KΩ, 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 ± (1%+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 ± 200ppm/ºC Insulation Resistance JIS-C-5202 5.6 in V-Block >1000MΩ 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 ) ± (5%+0.05Ω) Load Life JIS-C-5202 7.10 70ºC at RCWV for 1000 Hrs. (1.5 Hrs. on , 0.5 Hrs. off) ± (5%+0.05Ω) Temperature Cycling JIS-C-5202 7.4 -55ºC ➞ Room Temp. ➞+155ºC➞ Room Temp. for 5 Cycles ± (1%+0.05Ω) Resistance to Soldering Heat JIS-C-5202 6.4 350ºC± 10ºC for 3± 0.5 Seconds ± (1%+0.05Ω) * Rated Continuous Working Voltage (RCW V)= Power Rating x Resistance Value