Leaded ResistoRs Flame-Proof Type Metal Oxide Film Resistors Normal & Miniature Style RSF Series Feat URes Power Rating 1/4W, 1/2W, 1W, 2W, 3W, 5W Resistance Tolerance 2%, 5% T.C.R. 300ppm/C Flameproof Multi-layer Coating Meets UL-94V-0 Flameproof Feature Meets Overload Test UL-1412 iNt Rod UCtio N de Rati NG CURVe The RSF Series Metal Oxide Film Flame-Proof For resistors operated in ambient temperatures above 70C, power rating must be derated Resistors offer excellent performance in in accordance with the curve below. applications where stability and uniformity of 70 155 235C Rated Load (%) characteristics are desired. They provide lower 100 cost alternatives to Carbon Composition 80 Resistors and General Purpose Metal Films. 60 Metal Oxides also can replace many low power 40 General Purpose wirewound applications, saving 20 both money and time, with shorter delivery Ambient Temperature (C) cycles. The normal style & the miniature style 50 100 150 200 250 of RSF series are coated with layers of gray and pink colors flame-proof lacquer respectively. di MeNsio Ns Unit: mm st YLe di MeNsio N Normal Miniature L d H d RSF-25 RSF50S 6.30.5 2.40.2 282.0 0.550.05 RSF-50 RSF1WS 9.00.5 3.30.3 262.0 0.550.05 d RSF100 RSF2WS 11.51.0 4.50.5 352.0 0.80.05 H L D RSF200 RSF3WS 15.51.0 5.00.5 332.0 0.80.05 RSF3WM RSF5SS 17.51.0 6.51.0 322.0 0.80.05 RSF300 RSF5WS 24.51.0 8.51.0 382.0 0.80.05 RSF500 - 24.51.0 8.51.0 382.0 0.80.05 Note: RSF1WS (for MB Type) d = 0.80.05mm23 eLeCt RiCa L CHa Ra Cte Risti Cs No RMa L st YLe st YLe Rs F-25 Rs F-50 Rs F100 Rs F200 Rs F3WM Rs F300 Rs F500 Power Rating at 70C 1/4W 1/2W 1W 2W 3W 5W Maximum Working Voltage 200V 250V 350V 450V 500V 750V Maximum Overload Voltage 300V 400V 600V 700V 800V 1,000V Voltage Proof 250V 350V 500V 600V 700V 750V Resistance Range 1 - 1M & 0 for E24 series value Operating Temp. Range -55C to +235C Temperature Coefficient 300ppm/C MiNiat URe st YLe st YLe Rs F50s Rs F1Ws Rs F2Ws Rs F3Ws Rs F5ss Rs F5Ws Power Rating at 70C 1/2W 1W 2W 3W 5W Maximum Working Voltage 250V 300V 350V 500V 700V Maximum Overload Voltage 400V 500V 600V 800V 900V Voltage Proof 350V 400V 500V 700V 700V Resistance Range 1 - 1M & 0 for E24 series value Operating Temp. Range -55C to +235C Temperature Coefficient 300ppm/C Note: Special value is available on request eNViRo NMeNta L CHa Ra Cte Risti Cs PeRFo RMa NCe test test M et Hod a PPRaise 1.0%+0.05 for normal style Short Time Overload IEC 60115-1 4.13 2.5 times RCWV for 5 Sec. 2.0%+0.05 for miniature style Voltage Proof IEC 60115-1 4.7 in V-block for 60 Sec., test voltage by type By type Temperature Coefficient IEC 60115-1 4.8 -55C to +155C By type Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >1,000M Solderability IEC 60115-1 4.17 2355C for 30.5 Sec. 95% Min. coverage No deterioration of coatings and Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 50.5 Min. with ultrasonic markings 2.5kg (24.5N) Robustness of Terminations IEC 60115-1 4.16 Direct load for 10 Sec. in the direction of the terminal leads Periodic-pulse Overload IEC 60115-1 4.39 4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off) 2.0%+0.05 Damp Heat Steady State IEC 60115-1 4.24 402C, 90-95% RH for 56 days, loaded with 0.1 times RCWV 5.0%+0.05 Endurance at 70C IEC 60115-1 4.25 702C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) 5.0%+0.05 Temperature Cycling IEC 60115-1 4.19 -55C Room Temp. +155C Room Temp. (5 cycles) 1.0%+0.05 2603C for 101 Sec., immersed to a point 30.5mm from the Resistance to Soldering Heat IEC 60115-1 4.18 1.0%+0.05 body Accidental Overload Test IEC 60115-1 4.26 4 times RCWV for 1 Min. No evidence of flaming or arcing Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value