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Anti-Surge Wire-Wound Fixed Resistors
Performance Specification
K N P A 1 W J 0 1 0 1 A 1 0
Type:
KNP = KNP
Feature:
A = Anti-Surge
Wattage:
Normal
W2 = 1/2W
1W = 1W
.. ..
9W = 9W
AW = 10W
Small
1S = 1W-S
.. ..
9S = 9W-S
AS = 10W-S
Tolerance:
F = ±1%
G = ±2%
J = ±5%
K = ±10%
Packing Type:
A = Tape/Box
T = Tape/Reel
B = Bulk/Box
Packing Qty:
1 = 1,000 pcs.
A = 500 pcs.
B = 2,500 pcs.(for T/R)
0 = Bulk/Box
Additional Information:
0 = PT-52mm, PT-26mm,
Standard lead wire for Bulk/Box
8 = PT-58mm
9 = PT-64mm
Ordering Procedure: Ex.: KNP 1W, +/-5% 100Ω, T/B-1000, AntiSurge
Resistance Value:
E-24 series:
1
st
digit is “0”
2nd & 3rd digits are the significant
figures of the resistance
4th indicates the number of zeros:
“J” ~ 0.1, “K” ~ 0.01
?? .: 4.7Ω ~ 47J, 4.7KΩ ~ 472
E-96 series:
1st to 3rd digits are the significant
figures of the resistance and
the 4
th
digit indicates the number
of zeros:
?? . 1.33K = 1331
Temperature Coefficient <20Ω: ±400PPM/oC; ≥20Ω: ±300PPM/oC
Short Time Overload ±(2.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Dielectric Withstanding Voltage No evidence of flashover, mechanical damage, arcing or insulation breakdown.
Pulse Overload ±(5.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Terminal Strength No evidence of mechanical damage.
Resistance to Soldering Heat ±(1.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Solderability Min. 95% coverage.
Temperature Cycling ±(2.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Load Life In Humidity ±(5.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Load Life ±(5.0% + 0.05Ω)Max, with no evidence of mechanical damage.
Non-Flame No evidence of flaming or arcing
Surge Immunity (IEC 61000-4-5) ±(5.0% + 0.05Ω)Max.
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Page 2
Anti-Surge Wire-Wound Fixed Resistors
Features
LH H D
d
Part No.
Normal Size
1/2W (0.50W)
1W
2W
3W
5W
7W
8W
9W
3.5
5.0
5.5
6.5
8.5
8.5
8.5
8.5
10.0
12.0
16.0
17.5
25
30
40
53
28
25
28
28
38
38
38
38
52
52
64
64
B/B
B/B
B/B
B/B
40Ω~560Ω
51Ω~1KΩ
121Ω~2KΩ
201Ω~3KΩ
471Ω~5KΩ
471Ω~6KΩ
1.6KΩ~10KΩ
1.6KΩ~15KΩ
10Ω~39Ω
10Ω~50Ω
10Ω~120Ω
10Ω~200Ω
10Ω~470Ω
10Ω~470Ω
10Ω~1.5KΩ
10Ω~1.5KΩ
4KV
5KV
6KV
7KV
9KV
10KV
10KV
10KV
KNPAW2
KNPA1W
KNPA2W
KNPA3W
KNPA5W
KNPA7W
KNPA8W
KNPA9W
KNP 50
KNP 100
KNP 200
KNP 300
KNP 500
KNP 700
KNP 800
KNP 900
Style
Power
rating at
70oc
D(max) L(max)
Dimension (mm)
H±3 PT
Std
Resistance
Range
High
Resistance
Range
Max
Surge
Voltage
Color coating is “Green”
Excellent flame resistance
Too low or too high ohmic value can be supplied on
a case to case basis
Special Fusing Wire-Wound Resistors can be supplied on
a case to case basis
Special Anti-Surge function items available (per IEC 61000-4-5)
Note: For KNPA Series Max. Working Voltage: 500V
Max. Overload Voltage: 1,000V
Dielectric Withstanding Voltage: 1/2W : 350V, >1/2W : 500V
The following are available on case to case basis:
• Low and high resistance
• Small size
• Higher surge voltage
200
150
100
50
0 50 100
Rated Load (%)
10W
8W
5W, 7W
1/2W, 1W,
2W, 3W
Temperature Rise (
O
C)
Heat Rise Chart
Derating Curve
-55 0 50 100 150 200 250 300
20
40
60
80
100
Percent Rated Load (%)
Ambient Temperature (OC)
+70OC +155OC +275OC
Surge Waveform (1.2/50µs)
V
V max
0.5V
1.2 µs 50 µs
t
0.54
0.70
0.70
0.75
0.75
0.75
0.75
0.75
d±0.05
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