Nonflame Wirewound Resistors KNP NKNP (Standard type) (Non-inductive) MERITEK FEATURES Excellent heat dissipation; Small linear temperature coefficient Instant overload capacity; Low noise and without annual shift on resistance value Complete flameproof construction UL-1412 Wide resistance value range, available tolerance of ±5%、± 2%、± 1% RoHS compliant PART NUMBERING SYSTEM KNP 10WS - 0R3 Meritek Wirewound Resistor Series Power Rating Resistance Code 0R3 10R 100R Resistance 0.3Ω 10Ω 100Ω Tolerance Code J G F Tol. ± 5% ± 2% ± 1% Packaging Code TR TA Packaging Taping & Reel Tape & Ammo J TR B Bulk DIMENSIONS STYLE Normal Miniature (L) KNP1/2W KNP1WS 9.0±0.5 KNP1W KNP2WS 11.5±1.0 KNP2 W KNP3WS 15.5±1.0 KNP3W KNP5WS 17.5±1.0 KNP5W KNP7WS 24.5±0.5 KNP7W KNP10WS 40.0±1.0 KNP10W KNP12WS 53.0±1.0 KNP15W 66.0±1.0 Non EIA standard resistances are available upon request Non-inductive type: Resistance up to 50 Ω only DIMENSIONS (mm) (D) (H) 3.2±0.5 26±2 4.5±0.5 35±2 5.0±0.5 32±2 6.0±0.5 32±2 8.0±0.5 38±2 8.0±0.5 35±2 8.0±0.5 35±2 8.0±0.5 35±2 (d±0.03) 0.65±0.03 0.78±0.03 0.78±0.03 0.78±0.03 0.78±0.03 0.78±0.03 0.78±0.03 0.78±0.03 VALUE RANGE 0.01Ω~150Ω 0.01Ω~470Ω 0.01Ω~470Ω 0.01Ω~470Ω 0.01Ω~560Ω 0.01Ω~560Ω 0.01Ω~560Ω 0.01Ω~500Ω ELECTRICAL CHARACTERISTICS STYLE Body Size Operating Temp. Range Resistance Temp. Cofee Dielectric Withstanding volt. KNP1/2W KNP1WS 9.0*3.2 KNP1W KNP2WS 11.5*4.5 300V KNP2W KNP3WS 15.5*5.0 KNP3W KNP5W KNP7W KNP5WS KNP7WS KNP10WS 17.5*6.0 24.5*8.0 40.0*8.0 -55°C to +350°C ±400PPM/°C 400V KNP10W KNP12WS 83.0*8.0 KNP15W 66.0*8.0 Rev. 7 Nonflame Wirewound Resistors POWER GRAPH KNP NKNP (Standard type) (Non-inductive) MERITEK HOT-SPOT TEMPERATURE ENVIRONMENTAL CHARACTERISTICS PERFORMANCE TEST TEST METHOD Short Time Overload Rated power x 10 for 5 seconds Temperature Coefficient (T.C.R.) Resistance value at room Temperature and room Temperature+100°C Dielectric Withstanding Voltage In V-Block for 60 seconds Insulation Resistance In V-Block Load Life 70°C at RCWV for1000hrs. (1.5hrs on, 0.5hrs off) Load Life In Humidity 40±2°C 90~95%RH at RCWV for1000hrs. (1.5hrs on, 0.5hrs off) Solder Ability 260±5°C for 2±0.5 seconds Terminal Strength Direct load for 10 sec. In the direction off the terminal leads. Reference Standards: IEC 60115-1 Storage Temperature: 25±3°C; Humidity < 80%RH VALUE ±(2%+0.05Ω) By Type By Type >100MΩ ±(5%+0.05Ω) ±(5%+0.05Ω) 95% min. coverage Tensile: 2.5kg Rev. 7