SMBJ33A-M3/52

The SMBJ33A-M3/52 is a 3.3V 500W uni-directional TVS Diode used in information technology equipment (ITE).The SMBJ33A-M3/52 is a high quality transient voltage suppressor (TVS) designed to provide protection from transient overvoltage. The primary purpose of this type of device is to reduce the risk in equipment caused by electrostatic discharges (ESD). The SMBJ33A-M3/52 is capable of operation at temperatures as low as -40°C and at voltages up to 3.3V. This diode has very low leakage current specifications, making it an excellent choice for a variety of ITE applications.

The SMBJ33A-M3/52 is a Product Flammability Rating of UL 94 V-0 and is halogen free. It is designed to absorb transients produced by lightning or other sources of surge voltage. The maximum peak reverse current at 3.3V is rated as 5A. The maximum peak surge current is rated as 20A, ensuring the protection of the device from overvoltage. The clamping voltage for the diode is typically 28V.

The main function of a TVS Diode is to provide protection from large voltage spikes. The SMBJ33A-M3/52, when operated at rated conditions will limit the voltage across the protected device to a safe level, preventing damage due to overvoltage. The working principle of TVS Diodes is based on the physics of a breakdown of depletion layer when it is polarised in the opposite direction of the application bias voltage. It can be considered as a nonideal diode, operating in the avalanche region. When the applied voltage reaches a certain level, Called the clamping voltage, the diode breaks down to provide protection.

The SMBJ33A-M3/52 is a unidirectional device, so it can only be used for ESD protection in circuits where the transient voltage is of one polarity only. The device can only absorb surges of a specific polarity. It can be used in a wide range of ITE applications, including computer motherboards, portable electronic devices, digital video equipment, communications equipment and consumer electronics. The SMBJ33A-M3/52 is usually used in pairs when wired across power lines, to provide symmetrical protection.

The SMBJ33A-M3/52 is suitable for applications which require high reliability and protection from ESD and surge voltage. The combination of its reliability and low leakage means that it can be used in any ITE application. It is an ideal choice for protecting sensitive circuits from the effects of ESD and surge voltages. The device is designed to provide excellent protection from ESD and surge related voltage transients, and is an excellent choice for ITE applications.