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Specifications
Power(Watts):
36W
Resistance:
0.125mΩ
Mounting Type:
Screw
Current Rating:
-
Voltage Rating:
-
Type:
Shunt
Temperature Coefficient:
±175ppm/℃
Tolerance:
±5%
Mfr. Part #:
WSBS8518L1250JT20
Key Attributes
Model Number:
WSBS8518L1250JT20
Product Description
Product Overview
The Vishay Dale WSBS8518...20 is a Power Metal Strip Shunt Resistor featuring two sense pins and extremely low resistance values (50 , 100 , 125 , and 250 ). It offers a high power-to-resistor size ratio due to proprietary processing techniques and a solid metal manganese-copper alloy resistive element. The sense pins ensure consistent contact location, and the welded terminal-to-element construction contributes to its robust design. This resistor is ideal for applications requiring precise current sensing with very low resistance and low thermal EMF.
Product Attributes
- Brand: Vishay Dale
- Material: Solid metal manganese-copper alloy
Technical Specifications
| Model | Size | Power Rating @ 70 C (W) | Tolerance (%) | Resistance Value Range () | Available Resistance Values () | Weight (g) | Temperature Coefficient (ppm/C) | Thermal EMF (V/C) | Inductance (nH) |
|---|---|---|---|---|---|---|---|---|---|
| WSBS8518...20 | 8518 | 36 | 5, 10 | 50 to 1000 | 50, 100, 125, 250 | 50 = 38.4, 100 / 125u = 36.9, 250 = 34.2 | 200 (50 ), 175 (100/125 ), 110 (250 ) | < 1 (50 ), < 3 (100, 125, 250 ) | < 5 |
Performance Test Conditions
| Test | Conditions | Limits |
|---|---|---|
| Thermal shock | -55 C to +150 C, 1000 cycles, 15 min at each extreme | 0.5 % |
| Short time overload | 5x rated power for 5 s | 0.5 % |
| Low temperature storage | -65 C for 24 h | 0.5 % |
| High temperature exposure | 1000 h at +170 C | 1.0 % |
| Bias humidity | +85 C, 85 % RH, 10 % bias, 1000 h | 0.5 % |
| Mechanical shock | 100 gs for 6 ms, 5 pulses | 0.5 % |
| Vibration | Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h | 0.5 % |
| Load life | 1000 h at +70 C, 1.5 h ON, 0.5 h OFF | 1.0 % |
| Moisture resistance | MIL-STD-202, method 106, 0 % power, 7b not required | 0.5 % |
2411271950_VISHAY-WSBS8518L1250JT20_C1558148.pdf
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