KNP(Standard type) NKNP(Non-inductive type) Nonflame Wirewound Resistors MERITEK FEATURES • High heat dissipation: Small linear temperature coefficient • Instant overload capability; Low noise figure and without annual shift in resistance value Complete flameproof construction UL-1412 • PART NUMBERING SYSTEMS KNP 1W - 103 J TR Meritek Series Power Rating CODE ½W 1WS 1W 2WS 2W 0.5W 1W 1W 2W 2W Resistance First 2 digits are significant 3rd digit is multiplier “R” indicates decimal value below 10 ohm Tolerance CODE J (%) ±5 TR: Tape & Reel B: Bulk DIMENSIONS STYLE DIMENTIONS (MM) H VALUE RANGE Normal Miniature L D d KNP-1/2W KNP-1W KNP-2W KNP-1WS KNP-2WS KNP-3WS 9.0 0.5 11.5 1.0 15.5 1.0 3.2 0.5 4.5 0.5 5.0 0.5 26 2.0 35 2.0 32 2.0 0.65 0.03 0.78 0.03 0.78 0.03 0.1 ~50 0.1 ~100 0.1 ~330 KNP-3W KNP-5W KNP-7W KNP-5WS KNP-7WS KNP-8WS 16.5 1.0 24.0 1.0 30.0 1.0 6.0 0.5 8.0 0.5 8.0 0.5 32 2.0 38 2.0 38 2.0 0.78 0.03 0.78 0.03 0.78 0.03 0.1 ~200 0.5 ~300 0.5 ~300 KNP-8W KNP-9WS 40.0 1.0 8.0 0.5 38 2.0 0.78 0.03 1 ~1.5K KNP-9W KNP-10WS 47.0 1.0 8.0 0.5 38 2.0 0.78 0.03 1 ~1.5K KNP-10W 49.0 1.0 9.0 0.5 38 2.0 1.0 0.03 1 ~3.3K Value range for standard resistance, below or over this resistance on request 2. Non- inductive type up 50 only ELECTRICAL CHARACTERISTICS STYLE Power Rating At 70oC Operating Temp. Range Resistance Temp. Coeff. Dielectric Withstanding Volt KNP-1/2W KNP-1WS KNP-1W 0.5W KNP-2WS KNP-2W KNP-3WS KNP3W 2W 3W 1W KNP-5WS KNP-5W 300V 400V KNP-8WS KNP-8W KNP-9WS KNP-9W KNP-10WS KNP-10W 7W 8W 9W 10W 500V 800V 1000V 5W o 300V KNP-7WS KPN-7W o -55 C to + 155 C 400PPM/ oC 400V 500V 500V PERFORMANCE Short time overload Insulation resistance Load life Load life in humidity Solderability Terminal strength 2%+0.05 > 100M 5%+0.05 5%+0.05 95% min. coverage Tensile: 2.5kg Specifications are subject to change without notice. rev.6a