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