WIREWOUND RESISTORS

Vitreous Enamel Power Wirewound Resistors

KNP-VE

The KNP-VE Series of vitreous enamel coated power resistors from Tokenchina offers a cost-competitive alternative to silicon cement coated types over the 2.5W to 12W power range with resistance values 1Ω to 39KΩ.


Advantage of these vitreous enamelled devices is that Ayrton-Perry windings can be used to give low-inductance resistors within the same package dimensions.


Tokenchina's KNP-VE series is lead-free and RoHS compliant. Detailed specifications, both mechanical and electrical, please contact our sales representative for more information.


Features power wirewound resistors vitreous enamel coated

  • Axial Termination
  • Pulse type resistors
  • Large power dissipation
  • Resists hot spot temperature of 350°C
  • Low inductance Aryton - Perry winding type resistors
  • Flame retardant coating compatible with UL standards

Applications

  • Effectively for high frequency applications
  • Telecommunication equipment where large power dissipation
  • All industrial, electrical, electronic applicatios in ultrahigh temperature

Technical Specifcations & Dimensions - Power Wirewound KNP-VE

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

Environmental Characteristics - Power Wirewound KNP-VE

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

How to Order - Power Wirewound KNP-VE

KNP-VE - 3W 100R J P
Product Type
Rated Power
Resistance
1R
100R 100Ω
1KR 1000Ω
Resistance Tolerance
J ±5%
K ±10%
Packaging
TB Taping Box
P Bulk

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KNP-VE Series - Vitreous Enamel Wirewound Resistors