Vishay MRA-05, MRA-10, and MRA-12 are axial non-inductive wirewound resistors with power ratings from 4.0 to 12 W and resistance ranges from 0.01 to 85.0 kΩ.
The Vishay MRA series includes the MRA-05, MRA-10, and MRA-12 axial wirewound resistors. They feature non-magnetic, fully welded construction with high-temperature coating and are intended for audio industry applications.
This datasheet provides global model numbering, electrical specifications, dimensions, material characteristics, and performance test limits for the MRA-05, MRA-10, and MRA-12 models. It also lists operating temperature ranges, insulation voltage, and terminal strength.
| MRA-05 Rated Power P25°C Characteristic U | 4.0 W |
|---|---|
| MRA-10 Rated Power P25°C Characteristic U | 7.0 W |
| MRA-12 Rated Power P25°C Characteristic U | 10.0 W |
| MRA-05 Resistance Range | 0.01 to 15.0 kΩ |
| MRA-12 Resistance Range | 0.05 to 85.0 kΩ |
| Operating Temperature Range Characteristic U | -65 to +250 °C |
| Insulation Voltage MRA-10 and MRA-12 | 1000 VAC |
The tolerances are F = ±1.0 %, J = ±5.0 %, and K = ±10.0 %.
Characteristic U operates from -65 to +250 °C.
The insulation voltage is 1000 VAC for the MRA-10 and MRA-12.