Leaded ResistoRs
Cement Resistors
Radial Terminals Type
Normal Style [ SQZ Series ]
Non-Inductive Style [ NSZ Series ]
FeatURes
Power Rating
Resistance Tolerance
T.C.R.
3W, 5W, 7W, 10W, 15W, 20W
±5%
±300ppm/°C
deRatiNG CURVe
Rated Load (%)
25 40 70
100
15W-20W
80
60
40
20
0
-50
0
50
100 150 200 250 300
5W-10W
3W
155
275 °C
iNtRodUCtioN
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.
Ambient Temperature (°C)
teMPeRatURe Rise
Temperature Rise (°C)
300
250
200
150
100
50
20
40
60
80
100 120
20W
15W
10W
7W
5W
3W
Rated Load (%)
diMeNsioNs
0.5
S
p
1
p
2
L
W
H
2
H
H
1
p
3
p
4
stYLe
SQZ300 NSZ300
SQZ500 NSZ500
SQZ700 NSZ700
diMeNsioN
H
W
s
H
1
H
2
P
1
P
2
P
3
Normal Non-ind. L
Unit: mm
P
4
24.0±1.5 9.0±1 9.0±1 10.0±1 24.0±1 9.5±1.0 4.0±0.2 2.0±0.2 5.0±0.2 1.4±0.1
27.0±1.5 9.5±1 9.5±1 15.0±1 24.0±1 9.5±1.0 4.0±0.2 2.0±0.2 5.0±0.2 1.4±0.1
35.0±1.5 9.5±1 9.5±1 22.5±1 24.0±1 9.5±1.0 4.0±0.2 2.0±0.2 5.0±0.2 1.4±0.1
SQZ10A NSZ10A 48.0±1.5 9.5±1 9.5±1 32.5±1 24.0±1 9.5±1.0 4.0±0.2 2.0±0.2 5.0±0.2 1.4±0.1
SQZ15A NSZ15A 48.0±1.5 12.5±1 12.5±1 32.5±1 34.5±1 15.0±1.5 7.0±0.2 6.0±0.2 10.0±0.2 2.7±0.1
SQZ20A NSZ20A 63.5±2.0 12.5±1 12.5±1 42.5±1 34.5±1 15.0±1.5 7.0±0.2 6.0±0.2 10.0±0.2 2.7±0.1
6
eLeCtRiCaL CHaRaCteRistiCs
NoRMaL stYLe
stYLe
Power Rating at 25°C
Power Rating at 40°C
Power Rating at 70°C
Maximum Working Voltage
Maximum Overload Voltage
Voltage Proof
Resistance Range (Wirewound)
Resistance Range (Metal Oxide Film)
Operating Temp. Range
Temperature Coefficient
3W
250V
500V
500V
0.3
Ω
- 130
Ω
150
Ω
- 1M
Ω
-55°C to +155°C
±300ppm/°C
350V
700V
700V
0.36
Ω
- 200
Ω
220
Ω
- 1M
Ω
300
Ω
- 1M
Ω
500V
1,000V
1,000V
0.56
Ω
- 430
Ω
470
Ω
- 1M
Ω
1
Ω
- 560
Ω
750
Ω
- 1M
Ω
1.5
Ω
- 750
Ω
820
Ω
- 1M
Ω
5W
7W
10W
sQZ300
sQZ500
sQZ700
sQZ10a
sQZ15a
15W
sQZ20a
20W
NoN-iNdUCtiVe stYLe
stYLe
Power Rating at 25°C
Power Rating at 40°C
Power Rating at 70°C
Maximum Working Voltage
Maximum Overload Voltage
Voltage Proof
Resistance Range (Wirewound)
Operating Temp. Range
Temperature Coefficient
3W
250V
500V
500V
0.1
Ω
- 10
Ω
-55°C to +155°C
±300ppm/°C
350V
700V
700V
500V
1,000V
1,000V
0.1
Ω
- 20
Ω
0.1
Ω
- 30
Ω
5W
7W
10W
NsZ300
NsZ500
NsZ700
NsZ10a
NsZ15a
15W
NsZ20a
20W
Note: Special value is available on request
eNViRoNMeNtaL CHaRaCteRistiCs
PeRFoRMaNCe test
Short Time Overload
Voltage Proof
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
2.5 times RCWV 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%+0.05
Ω
By type
By type
>1,000M
Ω
95% Min. coverage
No deterioration of
coatings and markings
≥2.5kg (24.5N)
±2.0%+0.05
Ω
±5.0%+0.05
Ω
±5.0%+0.05
Ω
±2.0%+0.05
Ω
±1.0%+0.05
Ω
Note: Rated Continuous Working Voltage (RCWV) =
Power Rating x Resistance Value
