BE Services, Inc., a subsidiary of Bourns, Inc., has purchased substantially all of Riedon's assets. See Press Release
Precision Power Shunt Resistors
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FPR FPS 2/4-T220/T221 Precision Power Shunt Resistors |  |
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| Type | FPR 2-T220/T221 | FPS 2-T220 | FPR 4-T220/T221 | FPS 4-T220 |
|---|---|---|---|---|
| Resistance Range | 0.002 to 50 Ohms | |||
| Power Rating free air 70°C with heatsink |
1.5 W 15 W |
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| Thermal Resistance Rthj-c | 4.8 K/W | |||
| Tolerances from 0.002 Ohms from 0.01 Ohms from 0.1 Ohms |
2% / 5% 1% / 2% / 5% 0.5% / 1% / 2% / 5% |
1% / 2% / 5% 0.1% / 0.25% / 0.5% / 1% / 2% /5% 0.1% / 0.25% / 0.5% / 1% / 2% /5% |
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| Stability | 0.1% / 0. 2% / 0.5% (depends on stress) | |||
| Temperature Coefficient | R < 0.010 Ohms : ±1000 ppm/°C 0.010 ≤ R < 0.040 Ohms : ±500 ppm/°C 0.040 ≤ R < 0.075 Ohms : ±100 ppm/°C 0.075 ≤ R < 0.200 Ohms : ±50 ppm/°C 0.200 ≤ R < 0.500 Ohms : ±25 ppm/°C 0.500 ≤ R : ±15 ppm/°C |
±30 ppm/K (20 to 60°C) ±50 ppm/K (-40 to 130°C) |
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| Max. Current | 50 A | |||
| Voltage Proof | 300 VDC | |||
| Thermal EMF | < 0.1 µV/K | |||
| Operating Temperature Range | -40°C to 130°C | |||
| Resistor Material | CuNiMn-Foil | |||
| Substrate | Al2O3 or anodized aluminium | |||
| Housing | Epoxy or PPS | |||
| Connector Material | Cu tinned | |||
| Terminals | 2 | 4 | ||
| Max. Torque | 1 Nm / T221: 0.8 Nm | 1 Nm / T221: 0.8 Nm | ||
