Leaded ResistoRs Flame-Proof Type Wirewound Resistors Normal & Miniature Style KNP Series Feat URes Power Rating 1/4W, 1/2W, 1W, 2W, 3W, 4W, 5W, 7W Resistance Tolerance 1%, 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 resistor element is a resistive wire which is For resistors operated in ambient temperatures above 40C, power rating must be derated wound in a single layer on a ceramic rod, with in accordance with the curve below. tinned connecting wires of electrolytic copper 40 70 200 275 C Rated Load (%) welded to the end-caps. The ends of the 100 resistive wire and the leads are connected to 3W-7W 80 the caps by welding. The resistors are coated 1/4W-3WS 60 with layers of green color flame-proof lacquer. 40 20 50 100 150 200 250 300 Ambient Temperature (C) di MeNsio Ns Unit: mm st YLe di MeNsio N Normal Miniature L d H d KNP-25 NP50S 6.30.5 2.40.2 282.0 0.550.05 KNP-50 KNP1WS 9.00.5 3.30.3 262.0 0.550.05 d KNP100 KNP2WS 11.51.0 4.50.5 352.0 0.80.05 H L D KNP200 KNP3WS 15.51.0 5.00.5 332.0 0.80.05 KNP300 KNP5WS 17.51.0 6.50.5 322.0 0.80.05 KNP400 KNP500 KNP7WS 24.51.0 8.00.5 382.0 0.80.05 KNP700 - 24.51.0 8.00.5 382.0 0.80.05 Note: KNP1WS ( for MB Type ) d = 0.80.05 mm eLeCt RiCa L CHa Ra Cte Risti Cs No RMa L st YLe st YLe KNP-25 KNP-50 KNP100 KNP200 KNP300 KNP400 KNP500 KNP700 Power Rating at 40C 3W 4W 5W 7W Power Rating at 70C 1/4W 1/2W 1W 2W Voltage Proof 250V 300V 400V Resistance Range (1%) 0.22 - 150 0.1 - 800 0.1 - 1.8K 0.1 - 2.8K 0.1 - 7.5K 0.1 - 6.5K Resistance Range (5%) 0.05 - 200 0.03 - 800 0.015 - 2.2K 0.015 - 2.8K 0.02 - 7.5K 0.03 - 6.8K Operating Temp. Range -40C to +200C Temperature Coefficient 300ppm/C Note: Special value is available on request MiNiat URe st YLe st YLe KNP50s KNP1Ws KNP2Ws KNP3Ws KNP5Ws KNP7Ws Power Rating at 40C 5W 7W Power Rating at 70C 1/2W 1W 2W 3W Voltage Proof 200V 300V 400V Resistance Range (1%) 0.22 - 150 0.1 - 800 0.1 - 1.8K 0.1 - 2.8K 0.1 - 7.5K 0.1 - 6.5K Resistance Range (5%) 0.05 - 200 0.03 - 800 0.015 - 2.2K 0.015 - 2.8K 0.02 - 7.5K 0.03 - 6.8K Operating Temp. Range -40C to +200C 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 Short Time Overload IEC 60115-1 4.13 10 times rated power for 5 Sec. 2.0%+0.05 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. >100M Solderability IEC 60115-1 4.17 2355C 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 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 No evidence of flaming Accidental Overload Test IEC 60115-1 4.26 4 times RCWV for 1 Min. or arcing Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value