Token Electronics has introduced a non-inductive version of its standard KNP series, leaded wirewound resistors. The KNPN series offers the expected performance of a wirewound resistor with the added characteristic of vastly improved inductance, making it suitable for high-switching applications. The power of this non-inductive winding is available in standard KNP sizes from 0.5 watts up to 6 watts.

A non-inductively wound wirewound has one winding in one direction and one in the other direction; known as Ayrton Perry winding, and a byproduct of this design is that it creates two resistors in parallel in each device. Because of this, non-inductive wirewounds have an upper resistance range limit of half the value possible with a standard winding. For ease of use, Token Electronics has listed a non-inductive resistance value range on its datasheets along with the standard range.

Full line KNPN products meet RoHS compliant, please contact our sales representative for more information.
wirewound,resistor

General Specifications
Wirewound, Cement Fusible Resistors
Type Rated
Watts
Dimensions (mm) Resistance
Range (Ω)
Tolerance
D ± 0.5 L ± 1 H ± 3 d ± 0.05
KNPN KNPN-50 1/2W 4 9.0 26 0.50~0.55 0.1-10 Ω ± 1%
± 2%
± 5%
KNPN-100 1W 4 9.0 26 0.50~0.55 0.1-10 Ω
KNPN-100B 1W 4.5 11.5 26 0.75~0.80 0.1-10Ω
KNPN-200 2W 4.5 11.5 26 0.75~0.80 0.1-10 Ω
KNPN-200B 2W 5.5 15.5 35 0.75~0.80 0.1-20Ω
KNPN-300 3W 5.5 15.5 35 0.75~0.80 0.1-20 Ω
KNPN-400 4W 6.5 17.5 35 0.75~0.80 0.1-30 Ω
KNPN-500 5W 6.5 17.5 35 0.75~0.80 0.1-30 Ω
KNPN-500B 5W 8.5 24.5 38 0.75~0.80 0.1-50 Ω
KNPN-600 6W 8.5 24.5 38 0.75~0.80 0.1-50 Ω

Electrical Performance
TEST ITEMS CONDITION SPEC
Operating Temperature Range
-55 °C ~ 275 °C (0W)
Resistance Temp. Coeff.
Room temperature/100 °C up ± 300 PPM / °C
Short Time Overload 10 times of rated wattage for 5 sec. ± 2 %
Rated Load Rated wattage 30 min. ± 1 %
Voltage Withstanding 500VAC 1 min ± 1 %
Temperature Cycling -20 °C ~ 85 °C 5 cycles ± 1 %
Load Life 70 °C on ~ off cycle 1000 hrs. ± 5 %
Moisture-Proof Load Life 40 °C 95% RH on ~ off cycle 500 hrs. ± 3 %
Incombustibility 16 times of rated wattage for 5 min not flamed

How to Order
KNPN-100 1W 10R J P
Part Number
KNPN
Rated Power
(W)
Resistance Value
(Ω)
0R1 0.1Ω
1R0 1.0Ω
1R2 1.2Ω
10R 10Ω
12R 12Ω
Resistance Tolerance
(%)
F ±1%
G ±2%
J ±5%
Package
P Bulk
TB Taping Box


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