RF coat-insulated fusing resistor EU features Functions as a resistor in normal condition Quick fusing protects circuit from excessive overload at an abnormal time Flame-retardant coating equivalent to UL94 V-0 Marking: Blue body color with color code marking Products meet EU RoHS requirements dimensions and construction Dimensions inches (mm) Ll Type l* L C Max. D d(Nominal) Resistive Film Trimming Line +.010 .125.008 .134 .461...0 .018 RF16 +.25 (3.20.2) (3.4) (1.7 ) (0.45) 0 d .248.020 .280 .091.012 RF25 (6.30.5) (7.1) (2.30.3) .024 (0.6) .335.020 .374 .118.012 1.18.118 RF50 Ceramic Core (8.50.5) (9.5) (3.00.3) (303) Marking Electrode Lead .354.039 .437 .138.020 Cap Wire RF1 (9.01.0) (11.1) (3.50.5) .031 Flame Retardant Insulating Coating D (0.8) .610.039 .709 .236.039 C RF2 (15.51.0) (18.0) (6.01.0) * Lead length changes depending on taping and forming type. ordering information RF 25 C T52 A 100 J Power Terminal Taping & Nominal Resistance Product Packaging Rating Surface Material Forming Resistance Tolerance Code 16: 0.17W C: SnCu 3 digits J: 5% T26, T52, T521, A: Ammo 25: 0.25W T631, MHT, VTP, R: Reel 50: 0.5W VTE, VT, GT 1: 1W L, M Forming 2: 2W ratings Fusing Characteristics Type Power Resistance Dielectric T.C.R. 6 Rating Range Withstanding 10 /K Fusing E24 Voltage Fusing Power Time J: 5% 3W 2.5W 60 sec RF16C 0.17W 1.0 - 1k 1 - 4.7 5.1 - 1k Max. 3.75W 250V 10W 7.5W 6.25W 3W RF25C 0.25W 0.1 - 10k 1 - 4.7 0.1 - 0.18 0.2 - 0.43 0.47 - 0.91 5.1 - 2.2k 2.4k - 10k 1000: 7.5W R4.7 12.5W 6W RF50C 0.5W 0.1 - 15k 0.47 - 2 300V 0.1 - 0.43 2.2 - 1k 1.1k - 15k 30 sec 350: 15W Max. R5.1 30W 25W 12W RF1C 1W 0.1 - 10k 0.47 - 2 350V 0.1 - 0.18 0.2 - 0.43 2.2 - 1k 1.1k - 10k 36W 30W 24W RF2C 2W 1.0 - 3k 600V 1 - 3.6 1.1k - 3k 3.9 - 1k Rated Ambient Temperature: +70C Rated voltage = Power RatingResistance value Operating Temperature Range: 40 +155C Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/27/13 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 213 resistorsresistors RF coat-insulated fusing resistor environmental applications Derating Curve 100 For resistors operated at an ambient temperature of 70C or above, a power rating shall be derated in accordance with derating curve on the left. 80 60 40 20 0 -40 -20 020406080 100 120 140 160 70 155 Ambient Temperature (C) Performance Characteristics Performance Requirements R (% +0.05 ) Test Items Test Methods Limit Typical Resistance Within specified 25C tolerance T.C.R. Within specified T.C.R. +25C/+125C Overload (Short Time) 1% 0.5% Rated voltage 2.5 for 5 seconds Resistance to 1% 0.5% 350C 10C, 3.5s 0.5s or 260C 5C, 10s 1s Soldering Heat Rapid Change 1% 0.5% 40C (30 min.)/ +85C (30 min.) 5 cycles of Temperature Moisture Resistance 5% 2.5% 40C 2C, 90% - 95% RH, 1000 hours 1.5h ON / 0.5h OFF cycle Endurance at 70C 5% 2.5% 70C 2C, 1000 hours 1.5h ON / 0.5h OFF cycle Resistance to Solvent No abnormality in The resistor shall be immersed in IPA for 30 sec. appearance. Marking shall be easily legible. Flame retardant No evidence of flaming Flame test : The test flame shall be applied and removed or self-flaming. for each 15 sec respsctively to repeat the cycle 5 times. Overload flame retardant: Power corresponding to 2, 4, 8, 16 and 32 times the power rating shall be applied for each 1min. until disconnection occurs. Fusing Characteristics RF16 10 RF25 10 RF50 10 RF1 10 RF2 10 100 60 30 10 6 3 1 5 10 15 20 5 10 15 20 5 10 15 20 5 10 15 20 5 10 15 20 Magnification of Power Rating Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 2/20/17 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 214 % Rated Power Fusing Time