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Nonflame Wirewound Resistors
KNP
NKNP
(Standard type)
(Non-inductive)
MERITEK
FEATURES





Excellent heat dissipation; Small linear temperature coefficient
Instant overload capacity; Low noise and without annual shift on
resistance value
Complete flameproof construction UL-1412
Wide resistance value range, available tolerance of ±5%、± 2%、± 1%
RoHS compliant
PART NUMBERING SYSTEM
KNP
10WS - 0R3
Meritek Wirewound Resistor Series
Power Rating
Resistance
Code
0R3
10R
100R
Resistance
0.3Ω
10Ω
100Ω
Tolerance
Code
J
G
F
Tol.
± 5%
± 2%
± 1%
Packaging
Code
TR
TA
Packaging
Taping & Reel
Tape & Ammo
J
TR
B
Bulk
DIMENSIONS
STYLE
Normal
Miniature
(L)
KNP1/2W
KNP1WS
9.0±0.5
KNP1W
KNP2WS
11.5±1.0
KNP2 W
KNP3WS
15.5±1.0
KNP3W
KNP5WS
17.5±1.0
KNP5W
KNP7WS
24.5±0.5
KNP7W
KNP10WS
40.0±1.0
KNP10W
KNP12WS
53.0±1.0
KNP15W
66.0±1.0
Non EIA standard resistances are available upon request
Non-inductive type: Resistance up to 50 Ω only
DIMENSIONS (mm)
(D)
(H)
3.2±0.5
26±2
4.5±0.5
35±2
5.0±0.5
32±2
6.0±0.5
32±2
8.0±0.5
38±2
8.0±0.5
35±2
8.0±0.5
35±2
8.0±0.5
35±2
(d±0.03)
0.65±0.03
0.78±0.03
0.78±0.03
0.78±0.03
0.78±0.03
0.78±0.03
0.78±0.03
0.78±0.03
VALUE RANGE
0.01Ω~150Ω
0.01Ω~470Ω
0.01Ω~470Ω
0.01Ω~470Ω
0.01Ω~560Ω
0.01Ω~560Ω
0.01Ω~560Ω
0.01Ω~500Ω
ELECTRICAL CHARACTERISTICS
STYLE
Body Size
Operating Temp. Range
Resistance Temp. Cofee
Dielectric Withstanding volt.
KNP1/2W
KNP1WS
9.0*3.2
KNP1W
KNP2WS
11.5*4.5
300V
KNP2W
KNP3WS
15.5*5.0
KNP3W
KNP5W
KNP7W
KNP5WS
KNP7WS
KNP10WS
17.5*6.0
24.5*8.0
40.0*8.0
-55°C to +350°C
±400PPM/°C
400V
KNP10W
KNP12WS
83.0*8.0
KNP15W
66.0*8.0
Rev. 7
Nonflame Wirewound Resistors
POWER GRAPH
KNP
NKNP
(Standard type)
(Non-inductive)
MERITEK
HOT-SPOT TEMPERATURE
ENVIRONMENTAL CHARACTERISTICS
PERFORMANCE TEST
TEST METHOD
Short Time Overload
Rated power x 10 for 5 seconds
Temperature Coefficient (T.C.R.)
Resistance value at room Temperature and room Temperature+100°C
Dielectric Withstanding Voltage
In V-Block for 60 seconds
Insulation Resistance
In V-Block
Load Life
70°C at RCWV for1000hrs. (1.5hrs on, 0.5hrs off)
Load Life In Humidity
40±2°C 90~95%RH at RCWV for1000hrs. (1.5hrs on, 0.5hrs off)
Solder Ability
260±5°C for 2±0.5 seconds
Terminal Strength
Direct load for 10 sec. In the direction off the terminal leads.
Reference Standards: IEC 60115-1
Storage Temperature: 25±3°C; Humidity < 80%RH
VALUE
±(2%+0.05Ω)
By Type
By Type
>100MΩ
±(5%+0.05Ω)
±(5%+0.05Ω)
95% min. coverage
Tensile: 2.5kg
Rev. 7
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