Welwyn / TT Electronics E-Beam Welded Shunt Resistors
Welwyn / TT Electronics E-Beam Welded Shunt Resistors are designed for high current measurements in the hundreds of amps range. These Welwyn / TT Electronics resistors offer low self-heating that improves reliability and reduces equipment temperature. E-Beam Welded Shunt Resistors are electron beam welded resistance elements sandwiched between large copper terminals with optional tin plating. These resistors feature high-precision current measurement with ±1% tolerance, low thermal EMF, low measurement inductance, and robust copper terminals for busbar mounting. The series is AEC-Q200 qualified. Typical applications include busbar current sense, energy metering, power supplies, steering control, motor drives, and HEV battery management.
Features
- AEC-Q200 qualified
- Electron-beam welded technology
- Low thermal EMF
- Low measurement inductance
- Low measurement error frees up the designer’s error budget
- Low ohmic values reduce power loss
- Low self-heating reduces equipment temperature and improves reliability
- Robust copper terminals for busbar mounting
Applications
- Busbar current sense
- Energy metering
- Power supplies
- Steering control
- Motor drives
- High-current measurement in busbar format and high reliability during current overloads
- Welding power supplies
- HEV battery management
Specifications
- 15W to 36W power rating at +70°C
- 50µΩ to 250µΩ resistance range
- <1µV/°C thermal EMF
- ±100ppm/°C to ±150ppm/°C TCR
- <5nH inductance
- -65°C to +170°C ambient temperature range
Datasheets
公開: 2019-07-29
| 更新済み: 2023-07-18