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電阻型錄 > 陶殼水泥線繞 > SQM 系列
SQM 系列
SQM Series Cement Wire Wound Resistors

DIMENSIONS (mm) :

STYLE DIMENSION (mm)
SQM Normal Mini. Normal Mini. Normal Mini. φd
L W S
2W 20 ±1.0 ----- 11 ±1.0 ----- 7.0 ±1.0 ----- 0.8 ±0.05
3W 25 ±1.5 20 ±1.5 12 ±1.0 11 ±1.0 8.0 ±1.0 7.0 ±1.0 0.8 ±0.05
5W 25 ±1.5 25 ±1.5 13 ±1.0 12 ±1.0 9.0 ±1.0 8.0 ±1.0 0.8 ±0.05
7W 39 ±1.5 25 ±1.5 13 ±1.0 13 ±1.0 9.0 ±1.0 9.0 ±1.0 0.8 ±0.05
10W 51 ±1.5 35 ±1.5 13 ±1.0 16 ±1.0 10 ±1.0 12 ±1.0 0.8 ±0.05

ELECTRICAL CHARACTERISTICS:

Style Power Rating 70 o C SQM-2W SQM-3W SQM-5W SQM-7W SQM-10W
SQM-3WS SQM-5WS SQM-7WS SQM-10WS -----
Operating Temp. Range -55 o C ~ +155 o C
Max. Working Voltage 250V 350V 350V 500V 500V
Max. Overload Voltage 500V 700V 700V 1000V 1000V
Dielectric Withstanding Voltage (AC) 500V 700V 700V 1000V 1000V
Value Range ±5% (Ceramic core) 0.1 ~47 Ω 0.1 ~100 Ω 0.1 ~180 Ω 0.1 ~470 Ω 0.1 ~680 Ω
Value Range ±5% (Metal Oxide Film) 48 ~100K 101 ~100K 180 ~100K 471 ~10K 681 ~10K
Temp. Coefficient ±300ppm/ o C
* a. Standard resistance is as the above list, below or over this resistance is on request.
b. Value for Non-Inductive type up to 50 Ω only.
ENVIRONMENTAL CHARACTERISTICS :
PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds ±(2%+0.05 Ω)
Dielectric Withstanding V. JIS-C-5202 5.7 : in V-Block for 60 seconds By Type
Temperature Coefficient JIS-C-5202 5.2 : -55 o C ~+155 o C MAX. 300ppm/ o C
Insulation Resistance JIS-C-5202 5.6 : in V-Block ± 1000 M Ω
Solderability JIS-C-5202 6.5 : 235 o C for 5 ±0.5 seconds 95% min. coverage
Resistance to Solvent JIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonic no deterioration
Terminal Strength Direct load for 10 sec. In the direction of the terminal leads ±2.5KG/24.5N
Pulse Overload JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off) ±(2%+0.05 Ω)
Load Life in Humidity JIS-C-5202 7.9 : 40 ±2 o C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off)
±(5%+0.05 Ω)
Load Life JIS-C-5202 7.10 : 70 o C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) ±(5%+0.05 Ω)
Temperature Cycling JIS-C-5202 7.4 : 65 o C~room temp.~150 o C~room temp for 5 cycle ±(2%+0.05 Ω)
Soldering Heat JIS-C-5202 6.4 : 350 ±10 o C for 3 ±0.5 seconds ±(1%+0.05 Ω)
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