Bourns Riedon SSD-250A Series Shunt Sensors
Bourns Riedon SSD-250A Series Shunt Sensors deliver precise digital current measurements for DC systems up to 250A capacity. These modules integrate a calibrated low-resistance shunt and a 24-bit ADC to achieve accuracy within ±0.1% tolerance. The SSD-250A series includes error detection via CRC and offer temperature compensation for stable performance across -40°C to +115°C. These devices provide reinforced galvanic isolation of 1500 VDC, support RS-485 and CANbus interfaces with Modbus protocol, and require only 5V supply at 55mA. The Riedon SSD-250A series shunt sensors suit applications in battery management, renewable energy systems, industrial motor drives, and electric vehicle charging stations.
Features
- 16-bit +150°C microcontroller
- 24-bit ADC buffered inputs
- 24-bit isolated shunt sensor
- Advanced temperature compensation
- CANbus or RS-485 interface
- Compact System-in-Package (SIP)
- ECC flash memory
- High accuracy
- Internal and external CRC detection
- Low insertion resistance
- Operational stability
- RoHS compliant
- Temperature-compensated digital output
Applications
- Battery systems
- EV charging stations
- Motor drives
- Renewable energy
Technical Specifications
| Parameters | Values |
|---|---|
| Nominal Current | 250A |
| Operating Temperature Range | -40°C to +115°C |
| Galvanic Isolation Rating | 1500VDC |
| Tolerance | ±0.1% |
| Shunt Resistance | 120µΩ |
| Bandwidth | 5kHz |
| Dielectric strength | 3500VRMS |