Product Summary

The Bourns® SSD series is a digital current sensor with an integrated shunt resistor and 24-bit ADC. Its configuration allows it to digitize the detected current value and output it directly from a CANBus or RS485 interface, enabling current measurement without the need for an external ADC or isolation circuit. It is designed to provide high accuracy, excellent stability, and electrical isolation performance even in harsh industrial environments such as large-scale energy storage systems and renewable energy power generation infrastructure.

This digital current sensor is also suitable for battery-related power management in building automation equipment and EV charging stations, maintaining stable measurement performance even in environments with temperature fluctuations and long-term use. As a result, it is designed to meet current detection needs in a wide range of fields, from industrial power supply monitoring to infrastructure equipment.

Product features

In addition to current detection, bus voltage measurement is also supported.

In addition to current detection, the SSD series also supports bus voltage measurement. The wiring diagram below shows a configuration for measuring current only, as well as connection examples for measuring bus voltage on both the high and low sides, and shows connection methods for measuring voltages of ±1200 VDC. When measuring bus voltage, the device uses a configuration in which the voltage leads are connected internally, demonstrating that the device is designed to monitor both current and bus voltage with a single device by switching the operating mode and connection points.

* Provided by Bourns

Product lineup

The SSD series offers three current detection ranges to suit your application. All models support CANbus or RS-485 interfaces, allowing for easy integration into industrial networks.

External view and interface configuration

The SSD series external appearance and the CANBus/RS-485 interface connector configuration are shown below. You can check the external shape, connector position, installation direction, and other information required when installing the SSD series in your equipment.

External view

The diagram on the left shows the external appearance of SSD-100A to 500A, indicating the mounting hole positions and terminal shapes for each model.

Interface Configuration

The connector configuration of the SSD series is shown in the diagram on the left for CAN Bus and in the diagram on the right for RS-485. You can check the terminal arrangement and connection direction of each interface, which will help you understand the physical connection layout required when incorporating it into equipment.

Target application

• Battery System
• Renewable Energy Systems
• motor drive
• EV charger
• Products that use the CANBus interface
• Products that use an RS-485 interface

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