WEET SQH Cement Wire Wound Resistor
Cement resistors are manufactured by winding the ceramic rods with metal alloy resistance wire and put it in a fireproof ceramic box then concrete with non-flammable and heat-resistant cement.
Datasheet: https://www.resistorsfactory.com/Datasheet/WEET-SQH-Series-Cement-Resistor.pdf
Specifications
| Power Rating 70℃ | SQH-10W | SQH-15W | SQH-20W | SQH-30W |
| Style | - | - | SQH-25W | SQH-40W |
| Operating Temp. Range | -55°C ~ +155°C | |||
| Max. Working Voltage | 350V | 350V | 500V | 500V |
| Max. Overload Voltage | 500V | 700V | 1000V | 1000V |
| Dielectric Withstanding Voltage (AC) | 1000V | 1000V | 1000V | 1000V |
| Value Range ±5% (Ceramic core) | 0.39 ~ 300Ω | 0.51 ~ 1K | ||
| Value Range ±5% (Metal Oxide Film) | 300Ω ~ 10K | |||
| Temp. Coefficient | ±300ppm/℃ | |||
DIMENSIONS (mm)
| STYLE | DIMENSIONS (mm) | |||||||||
| L | H | W | S | P0 | P1 | P2 | P3 | P4 | d | |
| SQH-10W | 48.0±2.0 | 10.5±1.5 | 10.5±1.0 | 33.0±2.0 | 8.0 | 11.0 | 6.0 | 6.0 | 3.0 | 3.8 |
| SQH-15W | 48.0±2.0 | 12.5±1.5 | 12.0±1.0 | 33.0±2.0 | 8.0 | 11.0 | 6.0 | 6.0 | 3.0 | 3.8 |
| SQH-20W | 63.5±2.0 | 12.5±1.5 | 12.5±1.0 | 48.0±2.0 | 8.0 | 11.0 | 6.0 | 6.0 | 3.0 | 3.8 |
| SQH-25W | 63.5±2.0 | 12.5±1.5 | 12.5±1.0 | 46.0±2.0 | 10.0 | 11.0 | 6.0 | 6.0 | 3.0 | 3.8 |
| SQH-30W | 70.0±2.0 | 19.0±1.5 | 18.0±1.0 | 56.0±2.0 | 10.0 | 18.0 | 8.0 | 8.0 | 3.5 | 3.5 |
| SQH-40W | 90.0±2.0 | 19.0±1.5 | 18.0±1.0 | 70.0±2.0 | 10.0 | 18.0 | 8.0 | 8.0 | 3.5 | 3.5 |
| SQH-50W | 90.0±2.0 | 19.0±1.5 | 18.0±1.0 | 70.0±2.0 | 10.0 | 18.0 | 8.0 | 8.0 | 3.5 | 3.5 |
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