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DATA SHEET
WIREWOUND RESISTORS
Flameproof, Non-Inductive
NKN Series
±2%, ±5%
1/2W to 7W
Product specification – March 9, 2023 V.1
RoHS compliant & Halogen Free
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Through Hole Resistors
Wirewound Resistors
Product Specification
ORDERING INFORMATION
Part number of the flameproof, non-inductive wirewound resistor are
identified by the series, power rating, tolerance, packing, temperature
coefficient, forming and resistance value.
PART NUMBER
APPLICATIONS
Power applications
Home appliance
Industry
FEATURES
Higher power rating
NKN
200
J
T
-
73-
10R
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(1) SERIES
NKN Series
(2) POWER RATING
-50 = 1/2W
300=3W
1WS = 1W
400=4W
100 = 1W
5WS=5W
2WS = 2W
500=5W
200 = 2W
7WS=7W
3WS = 3W
Non-inductive types
High stable performance and
high reliability
Flameproof coating equivalent
to UL-94V-0
RoHS compliant & halogen
free
(3) TOLERANCE
G = ±2%
J = ±5%
(4) PACKAGING
R = Reel Pack
B = Bulk
T = Box Pack
(5) TEMPERATURE COEFFICIENT OF RESISTANCE
- = Based on spec.
(6) FORMING
52- = 52.4mm
F = F Type
73- = 73mm
FK = FK Type
91-=91mm
FFK = F-form Kink
M = M-Type Forming
FKK = FKK Type
MB = M-form W/flat
PN = PANAsert
FT = FT Type Forming
AV = AVIsert
(7) RESISTANCE VALUE
E24 Series
Example:
0R1= 0.1Ω, 1R = 1Ω, 10R = 10Ω
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15
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Through Hole Resistors
Product Specification
Wirewound Resistors
DIMENSIONS
Unit: mm
Normal
Miniature
L
ψD
H
ψd
NKN-50
NKN1WS
9.0 ± 0.5
3.5 ± 0.3
26 ± 2.0
0.55 ± 0.05
NKN100
NKN2WS
11.5 ± 1.0
4.8 ± 0.5
35 ± 2.0
0.8 ± 0.05
NKN200
NKN3WS
15.5 ± 1.0
5.3± 0.5
33 ± 2.0
0.8 ± 0.05
NKN300
NKN400
NKN5WS
17.5 ± 1.0
6.5 ± 0.5
32 ± 2.0
0.8 ± 0.05
NKN500
NKN7WS
24.5 ± 1.0
8.5 ± 0.5
38 ± 2.0
0.8 ± 0.05
DERATING CURVE
NKN1/2W~3WS
Rated Power (%)
100
80
60
40
36
20
70
200
275
Ambient Temperature (°C)
200
275
Ambient Temperature (°C)
NKN3W~7W
Rated Power (%)
100
80
60
40
31
20
40
3
15
NKN
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Through Hole Resistors
Product Specification
Wirewound Resistors
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS
NKN-50
NKN100
NKN200
Power Rating at 40 °C
NKN300
NKN400
NKN500
3W
4W
5W
Power Rating at 70 °C
1/2W
1W
2W
Resistance Range
0.08Ω~15Ω
0.05Ω~40Ω
0.03Ω~90Ω
0.1Ω~120Ω
0.1Ω~120Ω
0.18Ω~220Ω
Voltage Proof on Insulation
250V
400V
400V
400V
400V
400V
Maximum working voltage
√(P X R)
Maximum Inductance
0.15 μH
Operating Temp. Range
- 40°C to +200°C
Temperature Coefficient
±300ppm/°C
CHARACTERISTICS
4
15
NKN
NKN1WS
NKN2WS
NKN3WS
Power Rating at 40 °C
NKN5WS
NKN7WS
5W
7W
Power Rating at 70 °C
1W
2W
3W
Resistance Range
0.08Ω~15Ω
0.05Ω~40Ω
0.03Ω~90Ω
0.1Ω~120Ω
0.18Ω~220Ω
Voltage Proof on Insulation
250V
400V
400V
400V
400V
Maximum working voltage
√(P X R)
Maximum Inductance
0.15 μH
Operating Temp. Range
- 40°C to +200°C
Temperature Coefficient
±300ppm/°C
Note: For resistance value out of above range is by request.
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Through Hole Resistors
Wirewound Resistors
Product Specification
TEST AND REQUIRMENTS
TEST
TEST METHOD
Short Time Overload
IEC 60115-1 4.13
10 times rated power for 5 Sec.
±2%+0.05Ω
Voltage Proof on
IEC 60115-1 4.7
In V-Block for 60 sec. test voltage as
No Breakdown
PROCEDURE
Insulation
APPRAISE
above table
Temperature Coefficient
IEC 60115-1 4.8
Between -40°C to +155°C
By Type
Insulation Resistance
IEC 60115-1 4.6
In V-Block for 60 sec.
>100MΩ
Solderability
IEC 60115-1 4.17
245±5°C for 3±0.5 Sec.
95% Min. coverage
Solvent Resistance of
IEC 60115-1 4.30
IPA for 5±0.5 Min. with ultrasonic
No deterioration of
Marking
Robustness of
coatings and markings
IEC 60115-1 4.16
Terminations
Damp Heat Steady State
Direct load for 10 Sec. in the direction of
≥2.5Kg(24.5N)
the terminal leads
IEC 60115-1 4.24
40±2°C,90-95% RH for 56 days, loaded
±5.0%+0.05Ω
with 0.1 times RCWV(or Umax.,
whichever less)
Endurance at 70°C
IEC 60115-1 4.25
70±2°C at RCWV(or Umax., whichever
±5.0%+0.05Ω
less) for 1,000 Hr.(1.5 Hr.on,0.5 Hr. off)
Temperature Cycling
IEC 60115-1 4.19
-40°C
Resistance to Soldering
IEC 60115-1 4.18
Heat
Accidental Overload Test
5
15
NKN
Room Temp.
+200°C
±1.0%+0.05Ω
Room Temp.(5 cycles)
260±3°C for 10±1 Sec., immersed to a
±1.0%+0.05Ω
point 3±0.5mm from the body
IEC 60115-1 4.26
4 times RCWV for 1 Min.
No evidence of flaming
or arcing
Note:.
RCWV (Rated Continuous Working Voltage ):
The DC or AC (rms) continuous working voltage corresponding to the rated power is determined by the following
formula:
V=√(P X R)
or max. working voltage whichever is less
Where
V=Continuous rated DC or
AC (rms) working voltage (V)
P=Rated power (W)
R=Resistance value (Ω)
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Through Hole Resistors
Wirewound Resistors
Product Specification
AXIAL / REEL TAPE SPECIFICATION
Unit: mm
Normal
Miniature
a
A
B1-B2 (Max.)
S (spacing)
NKN-50
NKN1WS
6 ± 0.5
52.4 ± 1.5
1.2
5
NKN100
NKN2WS
6 ± 0.5
73.0 ± 1.5
1.5
52.4 ± 1.5
1.2
T (max. deviation of
spacing)
5
1 mm per 10 spacing,
0.5 mm per 5 spacing
NKN200
NKN300
NKN3WS
NKN5WS
6 ± 0.5
73.0 ± 1.5
52.4± 1.5
1.5
1.2
10
NKN7WS
6 ± 0.5
91.0 ± 1.5
1.5
10
NKN400
NKN500
6
15
NKN
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Through Hole Resistors
Product Specification
Wirewound Resistors
7
15
NKN
TAPE ON REEL PACKING
TYPE
Unit: mm/piece
Normal
Miniature
Across Flange(A)
B
Quantity Per Reel
NKN-50
NKN1WS
66.5
75.5
2,500
NKN100
NKN2WS
87
96
2,000
NKN200
NKN3WS
87
96
1,000
NKN300
NKN400
NKN5WS
87
96
1,000
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Through Hole Resistors
Wirewound Resistors
Product Specification
TAPE ON BOX PACKING
TYPE
8
15
NKN
DIMENSIONS
Unit: mm/piece
Normal
Miniature
A
B
C
Quantity Per Box
NKN-50
NKN1WS
73
45
258
1,000
NKN100
NKN2WS
81
91
260
1,000
NKN100
NKN2WS
103
78
260
1,000
NKN200
NKN3WS
81
91
260
1,000
NKN200
NKN3WS
103
94
260
1,000
NKN300
NKN400
NKN5WS
81
91
260
500
NKN300
NKN400
NKN5WS
103
78
260
500
NKN500
NKN7WS
116
79
255
250
BULK PACKING
Normal
Miniature
Piece/Per Inner Box
Bag/Per Inner Box
Piece Per Bag
NKN-50
NKN1WS
5,000
5
1,000
NKN100
NKN2WS
2,000
4
500
NKN200
NKN3WS
1,000
2
500
NKN300
NKN400
NKN5WS
1,000
2
500
NKN500
NKN7WS
500
10
50
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Through Hole Resistors
Wirewound Resistors
Product Specification
FORMING
M TYPE
TYPE
DIMENSIONS
Unit: mm
Normal
Miniature
L
ψD
ψd
P
H
NKN-50
NKN1WS
9.0 ± 0.5
3.5± 0.3
0.55 ± 0.05
12.5 ± 1
10.0 ± 1
NKN100
NKN2WS
11.5 ± 1.0
4.8 ± 0.5
0.8 ± 0.05
15.0 ± 1
12.5 ± 1
NKN200
NKN3WS
15.5 ± 1.0
5.3 ± 0.5
0.8 ± 0.05
20.0 ± 1
15.0 ± 1
NKN300
NKN400
NKN5WS
17.5 ± 1.0
6.5± 0.5
0.8 ± 0.05
25.0 ± 1
15.0 ± 1
NKN500
NKN7WS
24.5± 1.0
8.5± 0.5
0.8 ± 0.05
30.0 ± 1
15.0 ± 1
MB TYPE
MB TYPE
TYPE
9
15
NKN
DIMENSIONS
Unit: mm
Normal
Miniature
L
ψD
ψd
P
H1
H2
t
NKN-50
-
9.0 ± 0.5
3.5± 0.3
0.55± 0.05
12.5 ± 1
6.0 ± 1
5.0 ± 1
1.2 ± 0.2
-
NKN1WS
9.0 ± 0.5
3.5± 0.3
0.8 ± 0.05
12.5 ± 1
6.0 ± 1
5.0 ± 1
1.4 ± 0.2
NKN100
NKN2WS
11.5 ± 1.0
4.8 ± 0.5
0.8 ± 0.05
15.0 ± 1
6.0 ± 1
5.0 ± 1
1.4 ± 0.2
NKN200
NKN3WS
15.5 ± 1.0
5.3 ± 0.5
0.8 ± 0.05
20.0 ± 1
10.0 ± 1
5.0 ± 1
1.4 ± 0.2
NKN500
NKN7WS
24.5 ± 1.0
8.5 ± 0.5
0.8 ± 0.05
30.0 ± 1
15.0 ± 1
5.0 ± 1
1.4 ± 0.2
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Through Hole Resistors
Product Specification
Wirewound Resistors
10
15
NKN
MHA TYPE
TYPE
DIMENSIONS
Normal
Miniature
NKN-50
NKN1WS
Unit: mm
L
ψD
ψd
B
H0
HI
P
P0
9.0±0.5
3.5±0.3
0.55±0.05
17.5Max
19.0±1.0
4.0±1.0
30.0±1.0
15.0±0.3
P1
P2
F
W
W0
W1
ΨD0
7.5±1.0
3.75±0.5
7.5±0.5
18.0±0.5
5.0Min
9.0±0.5
4.0±0.2
MHB TYPE
TYPE
Normal
DIMENSIONS
Miniature L
15.5±1.0
NKN200
NKN3WS P
30.0±1.0
Unit: mm
ψD
ψd
B
5.3±0.5
0.8±0.05
P0
15.0±0.3
H
H0
HI
H2
H3
21.0Max. 30Max.
18.0±1.0
5.5(Ref.)
8.0±1.5
16Max.
PI
P2
F
W
W0
W1
ΨD0
7.5±1.0
3.75±0.8
7.5±0.5
18.0±0.5
5.0Min.
9.0±0.5
4.0±0.3
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Through Hole Resistors
Product Specification
Wirewound Resistors
MHC TYPE
TYPE
Normal
NKN200
DIMENSIONS
Miniature
NKN3WS
Unit: mm
L
ψD
ψd
B
H
HI
P
P0
15.5±1.0
5.3±0.5
0.8±0.05
21.0Max.
19.0±1.0
5.25±1.0
30.0±1.0
15.0±0.3
F
W
W0
W1
ΨD0
10.0±0.5
18.0±0.5
5.0Min.
9.0±0.5
4.0±0.2
FK TYPE
F TYPE
TYPE
11
15
NKN
FFK TYPE
FKK TYPE
DIMENSIONS
Unit: mm
H
Normal
Miniature L
ψD
ψd
P
h
NKN100
NKN2WS
11.5±1
4.8±0.5
0.8±0.05
6±1
8±1
24
NKN200
NKN3WS
15.5±1
5.3±0.5
0.8±0.05
8±1
8±1
28
Max.
HI
E
Max.
Max.
5±1
20
3.5
3.5±1
5± 1
25
3.5
3.5±1
hl
e
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Through Hole Resistors
Wirewound Resistors
Product Specification
PN TYPE ( Taping Pack )
TYPE
AV TYPE ( Taping Pack )
DIMENSIONS
Unit: mm
TYPE
DIMENSIONS
Unit: mm
Normal
Miniature
H1
Max.
H2
Max.
H3
Max.
Normal
Miniature
H1
Max.
H2
Max.
H3
Max.
NKN-50
NKN1WS
17
25.5
8.5
NKN-50
NKN1WS
14.5
23
8.5
NKN100
NKN2WS
19
27.5
8.5
NKN100
NKN2WS
17.5
26
8.5
FT TYPE ( Taping Pack )
TYPE
DIMENSIONS
12
15
NKN
Unit: mm
Normal
Miniature
H1
Max.
H2
Max.
H3
Max.
NKN-50
NKN1WS
13
21.5
8.5
NKN100
NKN2WS
16
24.5
8.5
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Through Hole Resistors
Product Specification
Wirewound Resistors
MARKING
COLOR
BLACK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GREY
WHITE
GOLD
SILVER
1st BAND
0
1
2
3
4
5
6
7
8
9
13
15
NKN
2nd BAND
0
1
2
3
4
5
6
7
8
9
MULTIPLIER
1Ω
10Ω
100Ω
1KΩ
10KΩ
100K
1MΩ
10MΩ
0.001Ω
0.0001Ω
0.1Ω
0.01Ω
TOLERANCE
NKN Series
± 2%
(G)
±5%
(J)
±2%, ±5%
5-BAND-CODE
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Through Hole Resistors
Wirewound Resistors
Product Specification
14
15
NKN
REVISION HISTORY
REVISION
DATE
CHANGE NOTIFICATION
DESCRIPTION
Version 0
Aug.2, 2021
-
- First issue of this specification
Version 1
Mar.9, 2023
-
- Add PN, AV, FT type forming to explanations of
part number
“ Yageo reserves all the rights for revising the content of this datasheet without further notification, as long as
the products itse lf are unchanged. Any product change will be announced by PCN.”
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Through Hole Resistors
Wirewound Resistors
Product Specification
15
15
NKN
LEGAL DISCLAIMER
Yageo, its distributors and agents (collectively, “Yageo”), hereby disclaims any and all liabilities for any errors,
inaccuracies or incompleteness contained in any product related information, including but not limited to product
specifications, datasheets, pictures and/or graphics. Yageo may make changes, modifications and/or
improvements to product related information at any time and without notice.
Yageo makes no representation, warranty, and/or guarantee about the fitness of its products for any particular
purpose or the continuing production of any of its products. To the maximum extent permitted by law, Yageo
disclaims (i) any and all liability arising out of the application or use of any Yageo product, (ii) any and all liability,
including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties,
including warranties of fitness for a particular purpose, non-infringement and merchantability.
Yageo statements regarding the suitability of products for certain types of applications are based on Yageo’s
knowledge of typical operating conditions for such types of applications in a generic nature. Such statements are
neither binding statements of Yageo nor intended to constitute any warranty concerning the suitability for a specific
customer application or use. They are intended for use only by customers with requisite knowledge and experience
for determining whether Yageo products are the correct products for their application or use. In addition,
unpredicatable and isolated cases of product failure may still occur, therefore, customer application or use of Yageo
products which requires higher degree of reliability or safety, shall employ additional protective safeguard
measures to ensure that product failure would not result in personal injury or property damage.
Yageo products are not designed for application or use in medical, life-saving, or life-sustaining devices or for any
other application or use in which the failure of Yageo products could result in personal injury or death. Customers
using or selling Yageo products not expressly indicated for above-mentioned purposes shall do so at their own risk
and agree to fully indemnify Yageo and hold Yageo harmless.
Information provided here is intended to indicate product specifications only. Yageo reserves all the rights for revising this
content without further notification, as long as products are unchanged. Any product change will be announced by PCN.
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