l eaded r es isto r s di m e n sio n s unit: mm st yl e di m e n sio n normal miniature l ? d h ?d fkn-25 fkn50s 6.30.5 2.40.2 282.0 0.550.05 fkn-50 fkn1ws 9.00.5 3.30.3 262.0 0.550.05 fkn100 fkn2ws 11.51.0 4.50.5 352.0 0.80.05 fkn200 fkn3ws 15.51.0 5.00.5 332.0 0.80.05 fkn300 fkn400 fkn5ws 17.51.0 6.50.5 322.0 0.80.05 fkn500 fkn7ws 24.51.0 8.00.5 382.0 0.80.05 note: fkn1ws ( for mb type ) ?d = 0.80.05 mm f eat ur es power rating 1/4w, 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 de r ati ng curv e for resistors operated in ambient temperatures above 40c, power rating must be derated in accordance with the curve below. fusible wirewound resistors i n t r od uc tio n the resistor element is a resistive wire which is wound in a single layer on a ceramic rod, tinned connecting wires of electrolytic copper are welded to the end-caps. the ends of the resistance wire and the leads are connected to the caps by welding. the resistors are coated with layers of green color fame proof lacquer. overload protection without risk of fre. wide range of overload currents. flame-proof type normal & miniature style [ fkn series ] ?d h l ?d th color code: white rated load (%) ambient temperature (c) 300 250 200 150 100 50 100 80 60 40 20 70 3w-7w 1/4w-3ws 155 275 40 c
3 note: rated continuous working voltage (rcwv) = power rating x resistance value e nv i r o nm e n ta l ch a r a c te r isti c s p e rf o rm a nc e test test m et h od a ppr aise short time overload jis-c-5202 5.5 2.5 times rcwv for 5 sec. 2.0%+0.05 dielectric withstanding voltage jis-c-5202 5.7 in v-block for 60 sec. by type 7hpshudwuh&rhiflhqw jis-c-5202 5.2 -40c to +155c by type insulation resistance jis-c-5202 5.6 in v-block >100m solderability jis-c-5202 6.5 2605c for 50.5 sec. 95% min. coverage no deterioration of coatings and markings resistance to solvent jis-c-5202 6.9 ipa for 1 min. with ultrasonic terminal strength jis-c-5202 6.1 direct load for 10 sec. in the direction of the terminal leads 2.5kg (24.5n) load life in humidity jis-c-5202 7.9 402c, 90 - 95% rh at rcwv for 1,000 hr. (1.5 hr. on, 0.5 hr. off) 5.0%+0.05 load life jis-c-5202 7.10 70c at rcwv for 1,000 hr. (1.5 hr. on, 0.5 hr. off) 5.0%+0.05 temperature cycling jis-c-5202 7.4 -55c ? room temp. ? +155c ? room temp. (5 cycles) 1.0%+0.05 resistance to soldering heat jis-c-5202 6.4 35010c for 30.5 sec. 1.0%+0.05 or arcing overload flame retardant jis-c-5202 7.12 4 times rcwv for 1 min. flame-proof type normal & miniature style [ fkn series ] e l e c t r i c a l ch a r a c te r isti c s n o rm a l st yl e st yl e fkn-25 fkn-50 fkn100 fkn200 fkn300 fkn400 fkn500 power rating at 70c 1/4w 1/2w 1w 2w 3w 4w 5w dielectric withstanding voltage 200v 300v resistance range 2.5 - 22 0.8 - 47 0.5 - 100 0.1 -150 0.1 - 330 0.1 - 390 operating temp. range -40c to +155c 7hpshudwuh&rhiflhqw 350ppm/c m i n iat ur e st yl e st yl e fkn50 s fkn1w s fkn2w s fkn3w s fkn5w s fkn7w s power rating at 70c 1/2w 1w 2w 3w 5w 7w dielectric withstanding voltage 200v 300v resistance range 2.5 - 22 0.8 - 47 0.5 - 100 0.1 - 150 0.1 - 330 0.1 - 390 operating temp. range -40c to +155c 7hpshudwuh&rhiflhqw 350ppm/c note: special value is available on request
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