Temperature Rise
Rated Load
Through-hole resisT ors
Vertical Lead Type
Cement Resistors
Normal Style [ SQM Series ]
Non-Inductive Style [ NSM Series ]
FeATures
Power Rating 2W, 3W, 5W, 7W, 10W
Resistance Tolerance 5%
T.C.R. 250ppm/C, -80~500ppm/C (depends on value)
DerATiNg Cur Ve TeMPerATure rise
40 70 155 275 C
iNTroDuCTioN
100
250 10W
3W-5W
7W
80
7W-10W
200
The SQM Series are ceramic housed resistors 5W
2W
60
150
with fiberglass based wirewound or ceramic
3W
(%)
2W
40
rod wirewound or metal oxide core. The 100
NSM Series are ceramic housed low-inductive 20
50
(C)
resistors with ceramic rod wirewound core.
-50 0 50 100 150 200 250 300
20 40 60 80 100 120
The materials used and the construction
Ambient Temperature (C) Rated Load (%)
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.
DiMeNsioNs
Unit: mm
s TYle DiMeNsio N
W
S
Normal Non-ind. h W s P
+2-1
SQM200 NSM200 201.5 11.01.0 7.01.0 5
H +2-1
SQM300 NSM300 251.5 12.01.0 8.01.0 5
+2-1
SQM500 NSM500 251.5 13.01.0 9.01.0 5
+2-1
3.51 SQM700 NSM700 391.5 13.01.0 9.01.0 5
+2-1
P
SQM10A NSM10A 511.5 13.01.0 9.01.0 5
080.05
+2-1
SQM10S NSM10S 351.5 16.01.0 12.01.0 763
eleCTriCAl ChArACTerisTiCs
Nor MAl sTY le
s TYle sQM200 sQM300 sQM500 sQM700 sQM10A sQM10 s
Power Rating at 40C 3W 5W 7W 10W
Power Rating at 70C 2W
Maximum Working Voltage 250V 350V 500V
Maximum Overload Voltage 500V 700V 1,000V
Voltage Proof on Insulation 500V 700V 1,000V
Resistance Range
0.1 - 36 0.1 - 68 0.1 - 130 0.1 - 330 0.1 - 510 0.1 - 270
(Ceramic based wirewound)
Resistance Range (Metal Oxide Film) 39 - 1M 75 - 1M 150 - 1M 360 - 1M 560 - 1M 300 - 1M
Resistance Range
0.1 - 1K 0.1 - 4.7K 0.1 - 10K 0.1 - 16K 0.1 - 4.7K
(Fiberglass based wirewound)
Operating Temp. Range -55C to +155C
Temperature Coefficient 300ppm/C
NoN -iNDu CTiVe sTY le
s TYle Ns M200 Ns M300 Ns M500 Ns M700 Ns M10A Ns M10s
Power Rating at 40C 3W 5W 7W 10W
Power Rating at 70C 2W
Maximum Working Voltage PxR
Voltage Proof on Insulation 500V 700V 1,000V
Resistance Range
0.1 - 10 0.1 - 30 0.15 - 65 0.27 - 100
(Ceramic based wirewound)
Operating Temp. Range -55C to +155C
Temperature Coefficient 300ppm/C
Note: Special value is available on request
eNViroNMeNTAl ChArACTerisTiCs
Per For MANCe Tes T Tes T MeTho D APPr Aise
Shor t Time Overload IEC 60115-1 4.13 2.5 times RCWV for 5 Sec. 2.0%+0.05
Voltage Proof on Insulation IEC 60115-1 4.7 in V-block for 60 Sec., test voltage by type By type
Temperature Coefficient IEC 60115-1 4.8 -55C to +155C By type
Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >1,000M
Solderability IEC 60115-1 4.17 2355C for 30.5 Sec. 95% Min. coverage
No deterioration of
Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 50.5 Min. with ultrasonic
coatings and markings
Robustness of Terminations IEC 60115-1 4.16 Direct load for 10 Sec. in the direction of the terminal leads 2.5kg (24.5N)
Periodic-pulse Overload IEC 60115-1 4.39 4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off) 2.0%+0.05
Damp Heat Steady State IEC 60115-1 4.24 402C, 90-95% RH for 56 days, loaded with 0.1 times RCWV 5.0%+0.05
Endurance at 70C IEC 60115-1 4.25 702C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) 5.0%+0.05
Temperature Cycling IEC 60115-1 4.19 -55C Room Temp. +155C Room Temp. (5 cycles) 2.0%+0.05
Resistance to Soldering Heat IEC 60115-1 4.18 2603C for 101 Sec., immersed to a point 30.5mm from the body 1.0%+0.05
Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less. Revision: 201304