Wire Wound Resistors (KNP)

Wire Wound Resistors (KNP) Introduction

Wire Wound Resistors are Getting Economical Solution to Board Population

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  • Wirewound Resistors (KNP) Series
  • Wirewound Resistors (KNP) Series
  • Wirewound Resistors (KNP) Series
  • Wirewound Resistors (KNP) Series
  • Wirewound Resistors (KNP) Series
  • Wirewound Resistors (KNP) Series

Token has launched its commercial wirewound resistor yet with the introduction of the various package size. Matching price with size to provide an economical solution to board population, Token's wire wound resistors are available in 15 standard size power ranging from 0.5W to 12.5W, all at 1%, 2%, and 5% tolerance.

The KNP series has been designed to give enhanced pulse handling capability and increased flameproof protection. The series is RoHS compliant with Pb-free terminations, and KNP wire-wound series can also be supplied with radial, goalpost or lancet preformed leads.

The KNP drive to miniaturise is as widespread within industrial process control and circuit break products as it is in the consumer sector. These resistors are ideal for high reliability industrial application as the technology removes the excessive temperature risk.

Produced on a high purity ceramic substrate, the resistor is assembled with interference-fit end caps to which are welded terminations. The resistive element is wound on the substrate and welded to the caps. Flameproof silicone cement coating is applied prior to marking with indelible link. The components are then leadformed, if required.

To address your need for technical and economic success in a timely manner, our custom solutions are available. Contact us with your specific needs.

Download complete specification - Wire Wound Resistors (KNP).

Features :
  1. Low cost, Excellent pulse load capability, A wide resistance range 0.1 Ω to 3 kΩ
  2. Operating temperature range -55°C ~ 155°C, A wide range of power ratings 0.5W to 12.5W
  3. Products with Pb-free Terminations and RoHS compliant
Applications :
  1. Power supplies, Consumer applications, Power tools, Ballast,
  2. Welders, High voltage applications, Home entertainment, appliances.

General Specifications (KNP)

Wire Wound Resistors (KNP) Dimensions
Wire Wound (KNP) Dimensions (Unit: mm)
Type Rated Watts Dimensions (mm) Resistance Range (Ω) Tolerance
D ± 0.5 L ± 1 H ± 3 d ± 0.05
KNP KNP-50 1/2W 4 9.0 26 0.50~0.55 0.1-50 Ω ± 1%
± 2%
± 5%
KNP-100 1W 4 9.0 26 0.50~0.55 0.1-50 Ω
KNP-100B 1W 4.5 11.5 26 0.75~0.80 0.1-100 Ω
KNP-200 2W 4.5 11.5 26 0.75~0.80 0.1-100 Ω
KNP-200B 2W 5.5 15.5 35 0.75~0.80 0.1-200 Ω
KNP-300 3W 5.5 15.5 35 0.75~0.80 0.1-200 Ω
KNP-400 4W 6.5 17.5 35 0.75~0.80 0.1-300 Ω
KNP-500 5W 6.5 17.5 35 0.75~0.80 0.1-400 Ω
KNP-500B 5W 8.5 24.5 38 0.75~0.80 0.1-400 Ω
KNP-600 6W 8.5 24.5 38 0.75~0.80 0.1-1K Ω
KNP-700 7W 8.5 24.5 38 0.75~0.80 0.1-1.5K Ω
KNP-800 8W 8.5 42 38 0.75~0.80 0.1-2K Ω
KNP-1000 10W 8.5 42 38 0.75~0.80 0.1-2K Ω
KNP-1000B 10W 8.5 54 38 0.75~0.80 0.1-3K Ω
KNP-1250 12.5W 8.5 54 38 0.75~0.80 0.1-3K Ω

Electrical Performance (KNP)

(KNP) Power derating curve
(KNP) Power derating curve
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

Application Notes of Wirewound Resistors (KNP)

  1. 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.

  2. 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.

  3. Do not install in dusty areas because the accumulation will cause shorts and poor conductance.

Order Codes (KNP)

KNP-100 1W 10R J P
Part Number
KNP
Rated Power (W)
Resistance Value (Ω)
0R1 0.1Ω
1R 1RΩ
10R 10RΩ
100R 100RΩ
1K 1KΩ
Resistance Tolerance (%)
F ±1%
G ±2%
J ±5%
Package
P Bulk
TB Taping Box