Data Sheet

WIRE WOUND RESISTORS KNP SERIES
Feature
 Small size and low cost.
 Super heat dissipation, instant overload capability.
 Standard tolerance: ±1%, ±5%
 Standard Value: E24 series as range below
 Miniature size available (As KNP-S type)
 Available in non-inductive style (As NKNP type)
 Flameproof coating, silicone paint meet UL 94-V-0
 Operating temperature : -55ºC ~+275ºC
General Specification
TYPE
DIMENSION(mm)
POWER
RATING
MAXIMUM
WORKING
VOLTAGE
RESISTANCE
L D H
d±0.05
STANDARD MAXIMUM
KNP025
6.0±1.0 2.3±0.3 27 ±3.0 0.60 1/4W
E=
√
P∗R
0.1Ω-27Ω
KNP050
9.0±1.0 3.2±1.0 27 ±3.0 0.65 1/2W
0.1Ω-80Ω 300Ω
KNP100S
9.0±1.0 3.2±1.0 27 ±3.0 0.65 1WS
0.1Ω-80Ω 300Ω
KNP100
11.0±1.0 4.0±1.0 33 ±3.0 0.80 1W
0.1Ω-100Ω 1.5KΩ
KNP200S
11.0±1.0 4.0±1.0 33 ±3.0 0.80 2WS
0.1Ω-100Ω 1.5KΩ
KNP200
15.0±1.0 5.0±1.0 33 ±3.0 0.80 2W
0.1Ω-100Ω 2.0KΩ
KNP300S
15.0±1.0 5.0±1.0 33 ±3.0 0.80 3WS
0.1Ω-100Ω 2.0KΩ
KNP300
17.0±1.0 6.0±1.0 33 ±3.0 0.80 3W
0.1Ω-150Ω 3.0KΩ
KNP400
17.0±1.0 6.0±1.0 33 ±3.0 0.80 4W
0.1Ω-150Ω 3.0KΩ
KNP500S
17.0±1.0 6.0±1.0 33 ±3.0 0.80 5WS
0.1Ω-150Ω 3.0KΩ
KNP500
25.0±1.0 8.0±1.0 38 ±3.0 0.80 5W
0.1Ω-150Ω 4.0KΩ
* Maximum overload voltage equals to
√
P∗Rx10
**
Resistance values out of standard range is available on request.
Derating Curve Temperature Rise
Material
Element: Alloy Resistance Wire
Core: High purity ceramic Al2O3
Termination: Standard solder-plated copper lead
Coating: Green silicone
Dimension
H L
d
D
D
d
Rated load (%)
100
80
60
40
20
50
100 150 200 250
70 °C
Ambient Temperature ( °C)
275 °C
300
Temp. Rise ( °C)
100
75
50
25
Applied Wattage
(
%
)
0
100%
75%50%25%
KNP1/2W
/
KNP5W
125