fe atures 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 der ating cur ve for resistors operated in ambient temperatures above 40c, power rating must be derated in accordance with the curve below. fusing char acteristics r 2.0 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 s ty le d i m e n sio n normal miniature l ?d h ?d - fkn50s 6.30.5 2.50.3 282.0 0.550.05 fkn-50 fkn1ws 9.00.5 3.50.3 262.0 0.550.05 FKN100 fkn2ws 11.51.0 4.60.5 352.0 0.80.05 fkn200 fkn3ws 15.51.0 5.20.5 332.0 0.80.05 fkn300 fkn400 fkn5ws 17.51.0 6.50.5 322.0 0.80.05 fkn500 fkn7ws 24.51.0 8.50.5 382.0 0.80.05 note: fkn1ws ( for mb type ) ?d = 0.80.05 mm int roduction the resistor element is a resistive wire which is wound in a single layer on a ceramic rod, with tinned connecting wires of electrolytic copper welded to the end-caps. the ends of the resistive wire are connected to the caps by welding. the resistors are coated with layers of green color flame-proof lacquer. overload protection without risk of fire. wide range of overload currents. fusible & flame-proof type normal & miniature style [ fkn series ] ?d h l ?d 5th color code: white rated load (%) ambient temperature (c) 300 250 200 150 100 50 100 80 60 40 20 70 3w-7ws 1/2ws-3ws 155 275 40 c wirewound resistors through-hole resis t ors
53 electrical char acteristics nor ma l s ty le s ty le fkn-50 FKN100 fkn200 fkn300 fkn400 fkn500 power rating at 40c 3w 4w 5w power rating at 70c 1/2w 1w 2w maximum working voltage pxr 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 coeffcient 350ppm/c note: special value is available on request m ini at ure s ty le s ty le fkn50 s fkn1w s fkn2w s fkn3w s fkn5w s fkn7w s 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 - 62 0.47 - 150 0.47 - 240 0.56 - 330 1 - 620 resistance range (5%) 2.5 - 22 0.47 - 62 0.47 - 150 0.47 - 240 0.56 - 330 1 - 620 operating temp. range -40c to +155c temperature coeffcient 350ppm/c note: special value is available on request env ironme ntal char acteristics p er f or manc e t es t t es t m e t ho d app r a ise short 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 by type by type temperature coeffcient iec 60115-1 4.8 -55c to +155c by type insulation resistance iec 60115-1 4.6 in v-block for 60 sec. >100m solderability iec 60115-1 4.17 2355c for 30.5 sec. 95% min. coverage solvent resistance of marking iec 60115-1 4.30 ipa for 50.5 min. with ultrasonic no deterioration of 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 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 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 accidental overload test iec 60115-1 4.26 4 times rcwv for 1 min. no evidence of faming or arcing revision: 201304 note: rated continuous working voltage (rcwv) = power rating x resistance value or max. working voltage listed above, whichever less.
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