The SMP100LC-400 with STMicroelectronics Surge Suppressors 400V 50uA Bidirect is a bi-directional surge suppressor manufactured by STMicroelectronics. It is designed to protect electronic circuits from power surges and over-voltage conditions. The SMP100LC-400 can withstand up to 400V, while it is rated for a maximum peak pulse current of 50uA, making it suitable for low power applications such as logic circuits. It features a low-profile design and is constructed with a metal oxide varistor (MOV) for high temperature stability, making it suitable for a wide range of environment and applications. The bidirectional design of the SMP100LC-400 helps protect against both surge and electrostatic discharge.