TOKEN KNPN Non-inductive Resistors Non-inductive Wirewound Resistors Non-inductive Wirewound Resistors Improves Inductance for High Frequency Applications Preview Token Electronics has introduced a non-inductive version KNPN Series of conformal coated, leaded wire-wound resistors. The KNPN series offers the expected performance of a wire wound resistor with the added characteristic of vastly improved inductance, making it suitable for high-switching applications. Wirewound technology has long been known as a leading technology for power resistor needs though it is inherently inductive. Known as Ayrton Perry winding, a non-inductively wound wirewound has one winding in one direction and one in the other direction. By using a non-inductively wound version this greatly reduces the inductance of any given resistor size and value combination; however, it does not completely eliminate the inductance. This non-inductive winding is available in all standard KNPN sizes from 0.5 watts up to 6 watts with options 1%, 2% and 5% tolerance. The KNPN series is RoHS compliant and also can be supplied with radial, goalpost or lancet preformed leads. To address your need for technical and economic success in a timely manner, our custom solutions are available. Contact us with your specific needs. Applications - Power tools - Current sensing - Consumer applications - Power supplies, Welders - High voltage applications - High-switching applications - Home entertainment, appliances Features - Low cost - Excellent pulse load capability - Non-inductive Ayrton Perry winding - A wide resistance range 0.1Ω to 50Ω - Operating temperature range -55°C ~ 155°C - A wide range of power ratings 0.5W to 6W - Products with Pb-free Terminations and RoHS compliant Version 2010 http://www.token.com.tw/ rfq token.com.tw 01 of 03 TOKEN KNPN Non-inductive Resistors General Specifications P L Type KNPN KNPN-50 KNPN-100 KNPN-100B KNPN-200 KNPN-200B KNPN-300 KNPN-400 KNPN-500 KNPN-500B KNPN-600 Rated Watts 1/2W 1W 1W 2W 2W 3W 4W 5W 5W 6W D ± 0.5 4 4 4.5 4.5 5.5 5.5 6.5 6.5 8.5 8.5 D Dimensions (mm) L±1 H±3 d ± 0.05 9.0 26 0.50~0.55 9.0 26 0.50~0.55 11.5 26 0.75~0.80 11.5 26 0.75~0.80 15.5 35 0.75~0.80 15.5 35 0.75~0.80 17.5 35 0.75~0.80 17.5 35 0.75~0.80 24.5 38 0.75~0.80 24.5 38 0.75~0.80 Resistance Range (Ω) Tolerance 0.1-10 Ω 0.1-10 Ω 0.1-10Ω 0.1-10 Ω 0.1-20Ω 0.1-20 Ω 0.1-30 Ω 0.1-30 Ω 0.1-50 Ω 0.1-50 Ω ± 1% ± 2% ± 5% Application Notes Wire-wound Resistors Application Notes: ● When being used in AC circuits, some wirewound structures give inductance ingredients or parasitic capacity, so they may cause unusual phenomena such as oscillations etc. Quorum deviations of other components should be carefully taken into account for use. ● Application and Placement: Wire wound resistors use different gauges of wire as resistance elements. Sometimes the gauge is extremely thin (finer than a strand of human hair) and very susceptible to breakage in environments containing salts, ash, dust and corrosives. Avoid utilization in such environments. ● Do not install in dusty areas because the accumulation will cause shorts and poor conductance. 02 of 03 http://www.token.com.tw/ rfq token.com.tw Version 2010 TOKEN KNPN Non-inductive Resistors Rated Power Ratio Electrical Performance 100 -55 70 80 155 60 40 20 0 -50 -25 0 25 50 75 100 125 150 175 200 225 250 275 280 Ambient Temperature °C TEST ITEMS Operating Temperature Range Resistance Temp. Coeff. Short Time Overload Rated Load Voltage Withstanding Temperature Cycling CONDITION -55 °C ~ 275 °C (0W) Room temperature/100 °C up 10 times of rated wattage for 5 sec. Rated wattage 30 min. 500VAC 1 min -20 °C ~ 85 °C 5 cycles SPEC ± 300 PPM / °C ±2% ±1% ±1% ±1% How to Order KNPN-100 1W 10R J P Part Number: KNPN Rated Power (W) Resistance Value (Ω) Code 0R1 1R 10R2 10R 12R Resistance Tolerance (%) Code F G J Resistance Value 0.1Ω 1Ω 1.2Ω 10Ω 12MΩ Resistance Tolerance ±1% ±2% ±5% Package Code TB P Package Taping Box Bulk Back to 1st Page - Non-inductive Wirewound Resistors (KNPN) Version 2010 http://www.token.com.tw/ rfq token.com.tw 03 of 03