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RESISTOR CATEGORIES >WIREWOUND RESISTORS
 
KNP. KNS . KNSS . NKN Wirewound Resistors

WIREWOUND RESISTORS
KNP-Standard Type
KNS-Miniature Type
KNSS-Ultra Mini Type
NKN-Non-Inductive Type

INTRODUCTION

Wire wound resistors are made by winding the resistance wire non-corrosive, heat-proof and humidity-proof material .

FEATURES
  • Excellent heat dissipation.
  • Low temp. coeffieient .
  • Perfect load efficiency, low noise figure .
  • Standard tolerance: ?%, ±2% ,±5%.
DIMENSIONS:
STYLE DIMENSION (mm)
Normal Miniature L ФD H Фd
KNP-1/2W KNS-1W 9.0 ?.0 3.5 ?.5 26 ?.0 0.6 ?.05

KNSS-1W 6.3 ?.0 2.3 ?.3 26 ?.0 0.6 ?.05
KNP-1W KNS-2W 11.5 ?.0 4.5 ?.5 35 ?.0 0.8 ?.05
KNP-2W KNS-3W 15.5 ?.0 5.0 ?.5 33 ?.0 0.8 ?.05
KNP-3W KNS-4W 17.5 ?.0 6.0 ?.5 32 ?.0 0.8 ?.05
KNP-4W KNS-5W 17.5 ?.0 6.0 ?.5 32 ?.0 0.8 ?.05
KNP-5W KNS-7W 24.5 ?.0 8.0 ?.5 38 ?.0 0.8 ?.05
ELECTRICAL CHARACTERISTICS:
Rating 70°C KNP-1/2W KNP-1W KNP-2W KNP-3W KNP-4W KNP-5W
KNS/SS-1W KNS-2W KNS-3W KNS-4W KNS-5W KNS-7W
Operating Temp. Range -55°C ~ +155°C
Dielectric Withstanding Voltage (AC) 300V 400V 400V 400V 400V 400V
Value Range ?%

0.1 Ω

~47 Ω

 0.1 Ω ~100 Ω 0.1 Ω ~330 Ω 0.1 Ω ~560 Ω 0.1 Ω ~560 Ω 0.1 Ω ~1K Ω
Temp. Coefficient (by Type) ?50ppm
a. Standard resistance is as the above list, below or over this resistance is on request.
b. Value for NKN Non-Inductive type is up to 50Ω only.
ENVIRONMENTAL CHARACTERISTICS :
TEST METHOD APPRAISE
Short Time Overload JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds ?0.25%+0.05 Ω)
Dielectric Withstanding V. JIS-C-5202 5.7 : in V-Block for 60 seconds By Type
Temperature Coefficient JIS-C-5202 5.2 : -55°C ~+155°C ?50ppm
Insulation Resistance JIS-C-5202 5.6 : in V-Block ≥1000 M Ω
Solderability JIS-C-5202 6.5 : 235°C for 5 ?.5 seconds 95% min. coverage
Resistance to Solvent JIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonic no deterioration
Terminal Strength Direct load for 10 sec. In the direction of the terminal leads ≥2.5KG/24.5N
Load Life in Humidity JIS-C-5202 7.9 : 40 ?°C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off) 		?3%+0.05 Ω)
Load Life JIS-C-5202 7.10 : 70°C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) ?3%+0.05 Ω)
WILDEX CORPORATION
 6F, NO.151, Sec.3, Beishen Rd, Shenkeng Dist, New Taipei City, Taiwan.
TEL:886-2-26641909 FAX:886-2-26640242 wildex@wildexco.com、wildex@ms26.hinet.net