MBRS230LT3G

The MBRS230LT3G is a three-terminal, surface mount device designed to protect voltage sensitive components from excessive currents. It features a forward voltage drop of 1.2V and an operating temperature range between -65°C and 175°C. The current limit of this device is set by the user and it has near-zero reverse leakage current, making it well suited for low-power applications. It is ideal for use in power over Ethernet, automotive, and industrial control systems.

Application field

The MBRS230LT3G is well suited for use in a variety of power over Ethernet (PoE) systems, as it can provide over-current protection for ethernet ports, switch blocks, and internal circuits. This device is also suited for use in automotive electronic control systems, such as ABS, for over-current protection. Additionally, it is useful in industrial control systems for protecting against overload and short-circuit situations.

Working principle

The MBRS230LT3G works by routing excess current away from sensitive components. It is a low-power device, so it does not require additional heatsinking. The current-limiting function enables the device to limit current to two levels, usually in the range of 500mA to 5A. This allows the MBRS230LT3G to provide both over-current protection and current limiting capabilities. The device typically begins to conduct current when the voltage across it exceeds a certain threshold, at which point it begins to reduce the voltage and current to a safe level.