FKN2WSJR-73-2R2

Through-hole resisT ors Fusible & Flame-Proof Type Wirewound r esistors Normal & Miniature style FKN series FeATures Power Rating 1/2W, 1W, 2W, 3W, 4W, 5W, 7W Resistance Tolerance 1%, 5% T.C.R. 350ppm/C Flameproof Multi-layer Coating Meets UL-94V-0 Flameproof Feature Meets Overload Test UL-1412 DerATiNg Cur Ve For resistors operated in ambient temperatures above 40C, power rating must be derated iNTroDuCTioN in accordance with the curve below. The resistor element is a resistive wire which 40 70 155 275 C Rated Load (%) is wound in a single layer on a ceramic rod, 100 3W-7WS with tinned connecting wires of electrolytic 80 1/2WS-3WS copper welded to the end-caps. The ends of 60 the resistive wire are connected to the caps by 40 welding. The resistors are coated with layers 20 of green color flame-proof lacquer. Overload 50 100 150 200 250 300 Ambient Temperature (C) protection without risk of fire. Wide range of overload currents. FusiNg ChArACTerisTiCs R2.0 Fusing time within 60 seconds at 36 times of rated power R>2.0 Fusing time within 60 seconds at 25 times of rated power Fusing residual resistive value at least 100 times rated resistance DiMeNsioNs Unit: mm sTYle DiMeNsioN Normal Miniature l D h d - FKN50S/FKN1SS 6.30.5 2.50.3 282.0 0.550.05 d FKN-50 FKN1WS/FKN2SS 9.00.5 3.50.3 262.0 0.550.05 FKN100 FKN2WS 11.51.0 4.60.5 352.0 0.80.05 H L D FKN200 FKN3WS 15.51.0 5.20.5 332.0 0.80.05 5th color code: white FKN300 FKN5WS 17.51.0 6.20.5 322.0 0.80.05 FKN400 FKN500 FKN7WS 24.51.0 8.20.5 382.0 0.80.05 Note: FKN1WS ( for MB Type ) d = 0.80.05 mm47 eleCTriCAl ChArACTerisTiCs Nor MAl s TYle sTYle FKN-50 FKN100 FKN200 FKN300 FKN400 FKN500 Power Rating at 40C 3W 4W 5W Power Rating at 70C 1/2W 1W 2W PxR Maximum working voltage Voltage Proof on Insulation 300V Resistance Range (1%) 0.5 - 100 0.47 - 150 0.56 - 330 1 - 620 Resistance Range (5%) 0.5 - 47 0.5 - 100 0.47 - 150 0.56 - 330 1 - 620 Operating Temp. Range -40C to +155C Temperature Coefficient 350ppm/C Note: Special value is available on request MiNiATure sTYle sTYle FKN50s FKN1Ws/FKN1ss FKN2Ws/FKN2ss FKN3Ws FKN5Ws FKN7Ws Power Rating at 40C 5W 7W Power Rating at 70C 1/2W 1W 2W 3W Maximum working voltage PxR Voltage Proof on Insulation 200V 300V Resistance Range (1%) 0.47 - 100 0.47 - 150 0.47 - 240 0.56 - 330 1 - 620 Resistance Range (5%) 2.5 - 22 0.47 - 100 0.47 - 150 0.47 - 240 0.56 - 330 1 - 620 Operating Temp. Range -40C to +155C Temperature Coefficient 350ppm/C 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 10 times rated power for 5 Sec. 2.0%+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 -40C to +155C By type Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >100M 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 Robustness of Terminations IEC 60115-1 4.16 Direct load for 10 Sec. in the direction of the terminal leads 2.5kg (24.5N) 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 (or Umax., Whichever less) for 1,000 Hr. (1.5Hr.on, 0.5Hr. Off) 5.0%+0.05 Temperature Cycling IEC 60115-1 4.19 -55C Room Temp. +155C Room Temp. (5 cycles) 1.0%+0.05 Resistance to Soldering Heat IEC 60115-1 4.18 2603C for 101 Sec., immersed to a point 30.5mm from the body 1.0%+0.05 No evidence of flaming Accidental Overload Test IEC 60115-1 4.26 4 times RCWV for 1 Min. or arcing Revision: 2020 Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less.