Through-hole resisTors
Fiberglass Cement Resistors
Power Wirewound &
Vertical Lead Type
Normal & Miniature Style [ PSM Series ]
FeATures
Power Rating
Resistance Tolerance
T.C.R
4W, 5W, 7W, 9W, 11W, 17W
±5%, ±10%
±10ppm/°C, ±40ppm/°C, 400±50ppm/°C
DerATiNg CurVe
iNTroDuCTioN
The PSM Series Resistors are wound on
Fiberglass core. The materials used and the
construction techniques ensure excellent
flame resistance, arc resistance and moisture
resistance as well as self-extinguishing
capabilities. They will withstand the most
rigorous loading test.
As resistors in radio and television receivers,
hazardous conditions such as smoking and
redheat can be completely prevented by the
proper choice of power resistors.
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
Rated Load (%)
70
100
80
60
40
20
0
-50
0
50
100 150 200 250 300 350
350 °C
Ambient Temperature (°C)
DiMeNsioNs
sTYle
DiMeNsioN
Miniature
-
-
PSM7WS
-
-
-
-
l
20±1.0
25±1.0
25±1.0
38±1.0
38±1.0
50±1.5
75±2.0
W
7.0±0.5
7.0±0.5
9.0±0.4
7.0±0.5
9.0±0.4
9.0±0.4
9.0±0.4
h
8.0±0.4
8.0±0.4
10.0±0.4
8.0±0.4
10.0±0.4
10.0±0.4
10.0±0.4
Normal
PSM400
PSM500
Unit: mm
32±3
ød
W
H
PSM400-700
L
max.1.5
ød
0.8±0.02
0.8±0.02
0.8±0.02
0.8±0.02
0.8±0.02
0.8±0.02
0.8±0.02
*
W
H
PSM7WS/17A
-
PSM700
PSM900
PSM11A
PSM17A
* 6mm, reduced solderability in this area
69
Note:
eleCTriCAl ChArACTerisTiCs
sTYle
Power Rating at 70°C
Maximum working voltage
Voltage Proof on Insulation
Resistance Range
Operating Temp. Range
Temperature Coefficient
PsM400
4W
PxR
2000V
0.1Ω - 9.1KΩ
-55°C to +350°C
±10ppm/°C, ±40ppm/°C, 400±50ppm/°C
0.15Ω - 15KΩ
0.33Ω - 33KΩ
0.51Ω - 47KΩ
0.91Ω - 82KΩ
PsM500
5W
PsM7Ws
7W
PsM700
PsM900
9W
PsM11A
11W
PsM17A
17W
Note: Special value is available on request
eNViroNMeNTAl ChArACTerisTiCs
PerForMANCe TesT
Short Time Overload
Voltage Proof on Insulation
Temperature Coefficient
Insulation Resistance
Solderability
Solvent Resistance of Marking
Robustness of Terminations
Periodic-pulse Overload
Damp Heat Steady State
Endurance at 70°C
Temperature Cycling
Resistance to Soldering Heat
TesT MeThoD
IEC 60115-1 4.13
IEC 60115-1 4.7
IEC 60115-1 4.8
IEC 60115-1 4.6
IEC 60115-1 4.17
IEC 60115-1 4.30
IEC 60115-1 4.16
IEC 60115-1 4.39
IEC 60115-1 4.24
IEC 60115-1 4.25
IEC 60115-1 4.19
IEC 60115-1 4.18
10 times rated power for 5 Sec.
in V-block for 60 Sec., test voltage by type
-55°C to +155°C
in V-block for 60 Sec.
235±5°C for 3±0.5 Sec.
IPA for 5±0.5 Min. with ultrasonic
Direct load for 10 Sec. in the direction of the terminal leads
4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off)
40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV
70±2°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off)
-55°C
Room Temp.
+155°C
Room Temp. (5 cycles)
260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body
APPrAise
±2.0%+0.05Ω
By type
By type
>10,000MΩ
95% Min. coverage
No deterioration of
coatings and markings
≥50N
±2.0%+0.05Ω
±2.0%+0.05Ω
±3.0%+0.05Ω
±2.0%+0.05Ω
±2.0%+0.05Ω
Revision: 201304
Note: RCWV(Rated Continuous Working Voltage) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less.
88
exPlANATioNs oF orDeriNg CoDe
MFr
Code 1 - 3
series Name
See Index
-12
Code 4 - 6
Power rating
-05 = ød0.5mm
-06 = ød0.6mm
-07 = ød0.7mm
-08 = ød0.8mm
-10 = ød1.0mm
-14 = ød1.4mm
-12 = 1/6W
-25 = 1/4W
25S = 1/4WS
-50 = 1/2W
50S = 1/2WS
100 = 1W
1WS = 1WS
200 = 2W
2WS = 2WS
204 = 0.4W
207 = 0.6W
300 = 3W
3WS = 3WS
3WM = 3WM
400 = 4W
500 = 5W
5WS = 5WS
5SS = 5WSS
700 = 7W
7WS = 7WS
10A = 10W
20A = 20W
30A = 30W
40A = 40W
50A = 50W
10S = 10WS
15A = 15W
25A = 25W
10B = 100W
25B = 250W
F
Code 7
Tolerance
P = ±0.02 %
A = ±0.05 %
B = ±0.1 %
C = ±0.25%
D = ±0.5 %
F = ±1 %
G = ±2 %
J = ±5 %
K = ±10 %
- = Base on Spec.
T
Code 8
Packing style
T = Tape/Box
R = Tape/Reel
B = Bulk
F
Code 9
Temperature Coef-
ficient of Resistance
- = Base on Spec.
A = ±5 ppm/°C
B = ±10 ppm/°C
C = ±15 ppm/°C
S = ± 20ppm/°C
D = ±25 ppm/°C
E = ±50 ppm/°C
F = ±100 ppm/°C
G = ±200 ppm/°C
H = ±250 ppm/°C
I = ±300 ppm/°C
J = ±350 ppm/°C
52-
Code 10 - 12
Forming Type
26- = 26mm
52- = 52.4mm
73- = 73mm
81- = 81mm
91- = 91mm
F = F Type
FK = FK Type
FKK = FKK Type
FFK = F-form Kink
M = M-Type Forming
MB = M-form W/flat
MT = MT Type Forming
MR = MR Type
AV = AVIsert
PN = PANAsert
100r
Code 13 - 17
resistance Value
0R1 = 0.1
100R = 100
10K = 10,000
10M = 10,000,000
exCePTioN:
• Cement series:
• JPW series:
<Code 8>: Special packing style code
B: Bulk with wirewound or metal oxide sub-assembly for resistance value
W: Bulk with ceramic based wirewound sub-assembly for resistance value
M: Bulk with metal oxide sub-assembly for resistance value
F: Bulk with Fiberglass based wirewound sub-assembly for resistance value
<Code 10-12>: Without forming code
Example:
<Code 13-17>: without resistance value code
Example:
JPW-06-T-52-
SQP500JB-10R
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