Product Line

Wire Wound Series Resistors

Product Name : WIRE WOUND RESISTORS FLAME-PROOF COATING RW (KNP) TYPE

Description


INTRODUCTION:
RW (KNP) type is to wind the resistance wire on a alkaliless ceramic basic, coated with non-corrosive and high insulating heat proof material.

FEATURES:
  • Super heat dissipation.
  • Small linear temperature coefficient.
  • Instant overload capability.
  • Low noise figure and without annual shift on resistance value.

DIMENSIONS:


GENERAL SPECIFICATIONS:
TYPE POWER RATING DIMENSION (mm) RESISTANCE RANGE
D±0.5mm L±1.5mm H( MIN) d±0.05mm
KNP-1/2W 1/2W 3.5 9 27 0.6 0.1Ω~300Ω
KNP-1W 1W 4 12 30 0.8 0.1Ω~499Ω
KNP-2W 2W 5.5 15.5 30 0.8 0.1Ω~1.5KΩ
KNP-3W 3W 6 17.5 30 0.8 0.1Ω~1.5KΩ
KNP-5W 5W 8.5 25 30 0.8 0.1Ω~1.5KΩ
KNP-7W 7W 8.5 30 38 0.8 0.1Ω~3KΩ
KNP-8W 8W 8.5 40 38 0.8 0.1Ω~3KΩ
KNP-10W 10W 8.5 53 38 0.8 0.1Ω~3KΩ

SMALL TYPE POWER RATING DIMENSION (mm) RESISTANCE RANGE
D±0.5mm L±1.5mm H( MIN) d±0.05mm
KNP-1WS 1WS 3.5 9 27 0.6 0.1Ω~300Ω
KNP-2WS 2WS 4 12 30 0.8 0.1Ω~499Ω
KNP-3WS 3WS 5.5 15.5 30 0.8 0.1Ω~1.5KΩ
KNP-5WS 5WS 6 17.5 30 0.8 0.1Ω~1.5KΩ
KNP-7WS 7WS 8.5 25 38 0.8 0.1Ω~1.5KΩ

TEMP ERATURE RISE AT 25℃:   DERATING CURVE:

Characteristics Condition Spec
Resistance Temp. Coeff -30℃~200℃ ±300 PPM/℃
Short Time Over Load 5 times of rated wattage for 5 sec. ±2%
Rate Load Rate watt 30min. ±1%
Voltage Durability 500V AC 1 min. not changed
Insulation Resistance 500V megger 500 MΩ
Temp. Cycle -30℃~85℃ for 5 cycles ±1%
Load Life 70℃ on-off cycle 1,000 hrs. ±5%
Moisture-Proof Load Life 40℃ 95% RH on-off cycle 500 hrs. ±3%
Incombustibility 6 times of rated wattage for 5 min. not flamed
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