Wirewound resistor construction consists of a measured length of resistance wire (metal alloy) wound on a core (usually a ceramic). The element assembly is then protected by a coating or enclosure of insulating material (such as: vitreous enamel, silicone, cement, epoxy, etc.). Wirewound Resistors are typically used where large power dissipation is required and where AC performance is relatively unimportant. Token provides wirewound resistors (KNP-VE).

wirewound,resistors,vitreous,enamel,coated
Technical Specifcations
Wirewound, Cement Fusible Resistors Precision Wirewound Axial Moulded Resistors
Type Rated Watts
(W)
Resistance
Range
(Ω)
Limiting Voltage
(V)
Tolerance Temperature Coefficient
(PPM/°C)
Dimensions (mm) (Max)
L ΦD Φd
KNP-VE-2.5 2.5 1 ~ 1K 100 ±5%
±10%
±250
±400
12.7 5.6 0.8
KNP-VE-3 3 1 ~ 1K 120 14.0 7.0
KNP-VE-5 5 1 ~ 3.6K 160 23.0 7.0
KNP-VE-6 6 1 ~ 6.8K 200 22.2 8.0
KNP-VE-8 8 1 ~ 20K 400 33.9 8.0
KNP-VE-9 9 1 ~ 27K 500 38.1 8.0 1.0
KNP-VE-12 12 1 ~ 39K 750 53.5 8.0

Performance
Test Items Condition Specifications
Insulation Resistance 500V 20MΩ
Short Time Overload 2.5 times of rated voltage 5 sec. ΔR≤±(2%R+0.05Ω)
Rated Load Rated wattage 30 min. ΔR≤±(1%R+0.05Ω)
Dielectric Withstanding Voltage 500V AC 1 min ΔR≤±(1%R+0.05Ω)
Temp. Cycle -20°C ~ 85°C 5 cycles ΔR≤±(1%R+0.05Ω)
Load Life 70°C on ~ off cycle 1000 hrs. ΔR≤±(5%R+0.05Ω)
Moisture-Proof Load Life 40°C 95% RH on~off cycle 500 hrs. ΔR≤±(3%R+0.05Ω)
Soldering After Resistance 350°C for 3 sec ΔR≤±(0.5%R+0.05Ω)
Incombustibility 16 times of rated wattage for 5 min. Not flamed

How to Order
KNP-VE - 3W 100R J P
Part Number
KNP-VE
Power Rating
(W)
Resistance
(Ω)
1R
100R 100Ω
1KR 1000Ω
Resistance Tolerance
(%)
J ±5%
K ±10%
Package
P Bulk
TB Taping Box


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