Bourns UB Riedon Miniature Silicone Coated Resistors
Bourns UB Riedon Miniature Silicone Coated Resistors are wirewound power resistors designed for precise resistance control in compact, high-power applications. These power resistors cover a wide resistance range from 0.02kΩ to 260kΩ with power ratings from 1W to 15W while operating across a temperature range from -55°C to +250°C. The silicone coating on the UB resistors provides flame resistance and electrical insulation, and the construction meets MIL-R-26 / MIL-R-39007 requirements. The UB power resistors find applications in current sensing, motor drives, and solar inverters.
Features
- Compact size with high power handling
- Designed to meet MIL-R-26 / MIL-R-39007 power ratings
- Flame-resistant silicone coating
- Good pulse handling capability
- Non-inductive winding option
- RoHS compliant
Applications
- Baseband units
- Capacitor recharge/discharge circuits
- Current sensing
- Industrial power supplies
- Motor drives
- Solar inverters
- Telecom 5G remote radio
Technical Specifications
| Parameters | Values |
|---|---|
| Low Temperature Coefficient of Resistance (TCR) | ±20PPM/°C standard |
| Operating Temperature Range | -55°C to +250°C |
| Power Rating Range | 1W to 15W |
| Resistance Range | 0.02kΩ to 260kΩ |
| Tolerance Range | ±0.01% to ±10% (1% Standard) |
UB Riedon Miniature Silicone Coated Resistors Power Derating Curve
