SMBJ300CAE3/TR13

The SMBJ300CAE3/TR13 is a surface mount Transient Voltage Suppressor (TVS) designed to protect sensitive equipment from excessive voltage transient events. It is a bi-directional device which can be used to protect mechanical and electronic circuits from over-voltage transients caused by an inductive load switching or SCR firing.

The SMBJ300CAE3/TR13 is constructed in a 4-pin molded SMA package and provides a wide range of protection characteristics. It has a low working voltage of 5.0V, an operating current as high as 300mA and an off-state leakage current of 5µA. It offers up to 6V of transient protection and can handle up to 500 Watts of peak power.

The major application field for the SMBJ300CAE3/TR13 is in industrial applications. It is specifically designed to protect industrial enclosures, pumps, motors, solenoids and other circuits from voltage transients. It can be used to protect against lightning surges, electrostatic discharge (ESD), inductive switching spikes and other high voltage transient events.

The working principle of the SMBJ300CAE3/TR13 is based on the principle of avalanche breakdown. When subjected to excessive voltage transients, the device will break down and allow a certain amount of current to pass through it until the voltage is reduced below a certain level. This current is only a fraction of the total current that is present in the circuit, therefore preventing any potential damage to other components in the circuit.

When a transient voltage event occurs, the device will begin to conduct a certain amount of current. This current will then be diverted away from the sensitive components in the circuit by the SMBJ300CAE3/TR13. As the voltage of the event is reduced, the device ceases to conduct and the circuit can continue to operate as normal.

In conclusion, the SMBJ300CAE3/TR13 is a surface-mount Transient Voltage Suppressor that is designed to protect industrial circuits from excessive voltage transients. It offers up to 6V of protection, a low working voltage of 5.0V, and an operating current of up to 300mA. The device works by conducting a certain amount of current during an over-voltage event, thus preventing damage to sensitive components in the circuit.