YAGEO CORPORATION LEADED RESISTORS
Wirewound Resistors FLAME-PROOF TYPE
Normal & Miniature Style [ KNP Series NKN Series ]
DIMENSIONS
STYLE DIMENSION
Normal Miniature L øD H ød
KNP-50 KNP1WS 9.0±1.0 3.5±0.5 26±2.0 0.6±0.05
KNP100 KNP2WS 11.5±1.0 4.5±0.5 35±2.0 0.8±0.05
KNP200 KNP3WS 15.5±1.0 5.0±0.5 33±2.0 0.8±0.05
KNP300 – 17.5±1.0 6.0±0.5 32±2.0 0.8±0.05
KNP400 KNP5WS 17.5±1.0 6.0±0.5 32±2.0 0.8±0.05
KNP500 – 24.5±1.0 8.0±0.5 38±2.0 0.8±0.05
Unit : mm
INTRODUCTION
•The resistor is fabricated using a suitable
fiberglass or ceramic core with the
resistance wire securely crimped to the
terminals
•Small in size comparatively than other kind
resistor
•Electrical and Mectanical stability and high
reliability
•The KNP/NKN series are coated with
layers of green color flame-proof lacquer.
The resistors meet overload tests in
accordance with UL specification #1412
without producing a fire hazard
TEMPERATURE RISE
Temperature Rise (ºC)
Rated Load (%)
FEATURES
Industry‘s Lowest Cost
Delivery From Stock in Bulk Taped, and Strip Pack
Exceptional Long-Term Stability
Exceeds Carbon Comp MIL-R-11 Performance
Resistance T olerance: ±5%
Variety of Packaging–Bulk, Strip Pack, 52mm Tape and Reel, Cut and Formed, or Radial Panasert/Avisert
DERATING CUR VE
Ambient Temperature (ºC)
Rated Load (%)
NKN has 5 color bands, the 5th black band.
100
80
60
40
20
0
-50 0 50 100 150 200 250 300
40 70 155 275
3W-5W
1/2W-2W
5W
4W
3W
2W
1W
1/2W
0 20 40 60 80 100 120
250
200
150
100
50
0
ød
HLøD
Note :
22
ELECTRICAL CHARA CTERISTICS
STYLE KNP-50 KNP1WS KNP100 KNP2WS KNP200 KNP3WS KNP300 KNP400 KNP5WS KNP500
Power Rating 1/2W 1W 2W 3W 4W 5W
Operating Temp. Range -55ºC to +155ºC
Dielectric Withstanding Voltage 300V 300V 400V 400V 400V 400V 400V 400V 400V 400V
Value Range ±5% 0.1Ω~47Ω0.1Ω~100Ω0.1Ω~330Ω0.1Ω~560Ω0.1Ω~1KΩ
Temperature Coefficient ±400ppm/ºC
* 1. Standard resistance is as the above list, below or over this resistance on request.
* 2. Non-Inductive type up to 50Ω only.
ENVIRONMENTAL CHARA CTERISTICS
PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload JIS-C-5202 5.5 2.5 Times RCWV for 5 Seconds ±(2%+0.05Ω)
Dielectric Withstanding Voltage JIS-C-5202 5.7 in V-Block for 60 Seconds by Type
Temperature Coefficient of Resistance JIS-C-5202 5.2 -55ºC to +155ºC ±400ppm/ºC
Insulation Resistance JIS-C-5202 5.6 in V-Block >100MΩ
Solderability JIS-C-5202 6.5 235ºC for 5±0.5 Seconds 95% Min. Coverage
Resistance to Solvent JIS-C-5202 6.9 Trichroethane for 1 Min. with Ultrasonic No Deterioration of
Coatings and Markings
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±2ºC, 90~95% RH at RCWV for 1000 Hrs. ±(3%+0.05Ω)
(1.5 Hrs. on , 0.5 Hr s. off )
Load Life JIS-C-5202 7.10 70ºC at RCWV for 1000 Hr s. (1.5 Hrs. on , 0.5 Hrs. off) ±(3%+0.05Ω)
* Rated Continuous Working Voltage (RCWV)= Power Rating x Resistance Value
