Through-hole resisTors
General Type
Wirewound Resistors
Normal & Miniature Style [ KNP Series ]
FeATꢄꢅes
Power Rating
1/4W, 1/2W, 1W, 2W, 3W, 4W, 5W, 7W
ResistanceTolerance
±1%, ±5%
±300ppm/°C
UL-94V-0
T.C.R.
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets OverloadTest
UL-1412
iNTꢅoDꢄCTioN
DeꢅATiNg CꢄꢅVe
The resistor element is a resistive wire which
is wound in a single layer on a ceramic rod,
with tinned connecting wires of electrolytic
copper welded to the end-caps. The ends of
the resistive wire are connected to the caps by
welding. The resistors are coated with layers of
green color flame-proof lacquer.
For resistors operated in ambient temperatures above 40°C, power rating must be derated
in accordance with the curve below.
40 70
200
275 °C
Rated Load (%)
100
80
60
40
20
3W-7W
1/4W-3WS
Ambient Temperature (°C)
50 100 150 200 250 300
DiMeNsioNs
Unit: mm
sTYle
Nꢀrmaꢁ
KNP-25
KNP-50
DiMeNsioN
Mꢂnꢂaturꢃ
l
øD
2.5±0.3
h
ød
KNP50S
KNP1WS
KNP2WS
KNP3SS
6.3±0.5
9.0±0.5
28±2.0
26±2.0
0.55±0.05
0.55±0.05
3.5±0.3
4.6±0.5
KNP100
11.5±1.0
15.5±1.0
17.5±1.0
35±2.0
33±2.0
32±2.0
0.8±0.05
0.8±0.05
0.8±0.05
ød
KNP200
KNP300
KNP400
KNP500
KNP600
KNP700
KNP3WS
5.2±0.5
6.5±0.5
H
L
øD
KNP5WS
KNP7WS
-
24.5±1.0
24.5±1.0
8.5±0.5
8.5±0.5
38±2.0
38±2.0
0.8±0.05
0.8±0.05
Note: KNP1WS ( for MBType ) ød = 0.8±0.05 mm