Cement Wirewound Flame Proof Resistors 2W-50W 2% 5% Tolerance
SQP Cement Wirewound Resistor fireproof package 2W-50W
With the extended resistance range and high-temperature rating, the resistors can be specified for operation in harsh environments. SQP Cement Wirewound resistors feature a resistance range from 0.1Ω to 3KΩ, while SQP Cement Film Resistor have a resistance range of 80Ω to 150KΩ.
SQP Cement resistor's feature ideal specifications for high volume and high-temperature applications. Frequently used in power supplies, motor controllers, and automotive applications, these products can be custom tailored to individual needs.
Standard tolerances for both devices are to ±5%, with TCRs ≤300ppm. JDC is equipped to design and produce custom components to meet many design and reliability demands.
Dimensions:
| Type | Dimension (mm) | Resistance Range (Ω) | ||||
| SQP | W±1 | H±1 | L±1.5 | d±0.05 | Wirewound | Mo |
| 2W | 7 | 7 | 18 | 0.5~0.6 | 0.01~50 | 50-20K |
| 3W | 8 | 8 | 22 | 0.7~0.8 | 0.01~50 | 50~33K |
| 5W | 10 | 9 | 22 | 0.7~0.8 | 0.01~100 | 100~50K |
| 7W | 10 | 9 | 35 | 0.7~0.8 | 0.01~1K | 1K~50K |
| 10W | 10 | 9 | 48 | 0.7~0.8 | 0.01~1K | 1K~150K |
| 15W | 12.5 | 11.5 | 48 | 0.7~0.8 | 0.01~1K | 1K~150K |
| 20W-25W | 14 | 13.5 | 60 | 0.7~0.8 | 0.01~1K | 1K~150K |
Features:
- Small dimension, excellent stability in high temperature, resistant to humidity and shock.
- Completely insulated character suitable for printed circuit board.
- Precision resistance values with longer life.
- In high resistance values,the winding cores will be replaced by power film cores.
- Super heat dissipation;small linear temperature coefficient.
- Instant overload capability; low noise figures and low annual shift on resistance values.
Electrical Performance:
| TEST ITEMS | CONDITION | SPEC. |
| Resistance Temp Coeff. | -30°C~ 200°C | ±300ppm / °C |
| Short Time Over Load | 2.5 times of rated wattage for 5 sec. | ±2 % |
| Rated Load | Rated wattage for 30 min. | ±1 % |
| Voltage Withstanding | 800 v AC 1 min. | no charge |
| Temp. Cycle | -30°C~ 85°Cfor 5 cycles | ±1 % |
| Load Life | 70°Con-off cycle 1000hrs. | ±5 % |
| Moisture-proof Load Life | 40°C95% RH on-off cycle 500 hrs. | ±5 % |
| Incombustibility | 16 times of rated wattage for 5 min. | not flammed |
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