FEATURES
Power Rating 2W, 3W, 5W, 7W, 10W, 15W, 20W, 25W, 30W, 40W
Resistance Tolerance ±5%
T.C.R. ±300ppm/°C
DERATING CURVE TEMPERATURE RISE
LEADED RESISTORS
DIMENSIONS Unit: mm
STYLE DIMENSION
Normal Non-Inductive L W H ød
SQP200 NSP200 18±1.0 7.0±1.0 7.0±1.0 0.65±0.05
SQP300 NSP300 22±1.5 8.0±1.0 8.0±1.0 0.8±0.05
SQP500 NSP500 22±1.5 9.5±1.0 9.0±1.0 0.8±0.05
SQP700 NSP700 35±1.5 9.5±1.0 9.0±1.0 0.8±0.05
SQP10A NSP10A 48±1.5 9.5±1.0 9.0±1.0 0.8±0.05
SQP15A NSP15A 48±1.5 12.5±1.0 12.5±1.0 0.8±0.05
SQP20A NSP20A 60±5.0 12.5±1.0 12.5±1.0 0.8±0.05
SQP25A NSP25A 60±5.0 14.0±1.5 13.0±1.5 0.8±0.05
SQP30A NSP30A 77±5.0 18.0±1.5 17.0±1.5 0.8±0.05
SQP40A NSP40A 90±5.0 19.0±1.5 18.0±1.5 0.8±0.05
ød H
W
32±3 32±3
L
Cement Resistors
Axial Lead Type
Normal Style [ SQP Series ]
Non-Inductive Style [ NSP Series ]
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.
300250200150100500-50
100
80
60
40
20
0
704025 155 275 °C
15W-40W
3W-5W
7W-10W
2W
Rated Load
Ambient Temperature (°C)
(%)
12010080604020
250
300
200
150
100
50
20W-40W
15W
10W
7W
5W
3W
2W
Temperature Rise
Rated Load (%)
(°C)
65
Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value
ELECTRICAL CHARACTERISTICS
NORMAL STYLE
STYLE SQP200 SQP300 SQP500 SQP700 SQP10A SQP15A SQP20A SQP25A SQP30A SQP40A
Power Rating at 25°C 15W 20W 25W 30W 40W
Power Rating at 40°C 3W 5W 7W 10W
Power Rating at 70°C 2W
Maximum Working Voltage 250V 350V 500V 1,000V
Maximum Overload Voltage 500V 700V 1,000V 2,000V
Voltage Proof 500V 700V 1,000V 2,000V
Resistance Range (Wirewound) 0.03 Ω - 36 Ω0.015 Ω - 68 Ω0.015 Ω - 130 Ω0.05 Ω - 330 Ω0.08 Ω - 510 Ω0.1 Ω - 680 Ω0.15 Ω - 1K Ω
Resistance Range (Metal Oxide Film) 39 Ω - 1M Ω75 Ω - 1M Ω150 Ω - 1M Ω360 Ω - 1M Ω560 Ω - 1M Ω750 Ω - 1M Ω1.2K Ω - 1M Ω
Operating Temp. Range -55°C to +155°C
Temperature Coefcient ±300ppm/°C
NON-INDUCTIVE STYLE
STYLE NSP200 NSP300 NSP500 NSP700 NSP10A NSP15A NSP20A NSP25A NSP30A NSP40A
Power Rating at 25°C 15W 20W 25W 30W 40W
Power Rating at 40°C 3W 5W 7W 10W
Power Rating at 70°C 2W
Maximum Working Voltage 250V 350V 500V 1,000V
Maximum Overload Voltage 500V 700V 1,000V 2,000V
Voltage Proof 500V 700V 1,000V 2,000V
Resistance Range (Wirewound) 0.08 Ω - 10 Ω0.033 Ω - 30 Ω0.03 Ω - 40 Ω0.15 Ω - 65 Ω0.25 Ω - 100 Ω0.25 Ω - 120 Ω0.36 Ω - 160 Ω
Operating Temp. Range -55°C to +155°C
Temperature Coefcient ±300ppm/°C
Note: Special value is available on request
ENVIRONMENTAL CHARACTERISTICS
PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload IEC 60115-1 4.13 2.5 times RCWV for 5 Sec. ±2.0%+0.05 Ω
Voltage Proof IEC 60115-1 4.7 in V-block for 60 Sec., test voltage by type By type
Temperature Coefcient IEC 60115-1 4.8 -55°C to +155°C By type
Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >1,000M Ω
Solderability IEC 60115-1 4.17 235±5°C for 3±0.5 Sec. 95% Min. coverage
Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 5±0.5 Min. with ultrasonic No deterioration of
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 Ω
Damp Heat Steady State IEC 60115-1 4.24 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV ±5.0%+0.05 Ω
Endurance at 70°C IEC 60115-1 4.25 70±2°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) ±5.0%+0.05 Ω
Temperature Cycling IEC 60115-1 4.19 -55°C Room Temp. +155°C Room Temp. (5 cycles) ±2.0%+0.05 Ω
Resistance to Soldering Heat IEC 60115-1 4.18 260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body ±1.0%+0.05 Ω