SMBJ22

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The SMBJ22 is a type of TVS - Diode that is typically used as a protection device. It helps protect sensitive electronic components such as those used in medical, automotive, communications, and industrial equipment from damage due to transient voltage spikes. A Transient Voltage Suppressor (TVS) Diode works by providing a low resistance path to ground for any potential transients, thus diverting them and reducing their amplitude. This helps protect the delicate circuitry from damage.

The SMBJ22 is a bidirectional diode in a leadless, surface mount package. It has a low reverse breakdown voltage (Vbr) of 22 V and an operating surge peak power rating of 600 W. The reverse leakage current, I R , is typically 10 µA. It is bidirectional, meaning that it can protect both from positive and negative transient events. As a result, it can be used to protect both positive and negative supply lines as well as individual lines between circuits.

The SMBJ22 is typically used in applications such as motor control systems, medical instruments, sensor systems and more. Its strength lies in its ability to handle high voltages and withstand surges, making it suitable for a wide variety of applications.

The working principle of the SMBJ22 is quite simple. It is designed to conduct excessive current when a transient voltage spike occurs, thus avoiding any damage to the circuitry it is intended to protect. When a surge voltage is applied to the device, the internal device structure is quickly adjusted as the breakdown threshold is exceeded. As a result, the avalanche current begins to rise drastically. This drastically reduces the voltage across the protected component, thus protecting it from damage.

When the surge voltage has been dissipated, the SMBJ22 will gradually return to its normal operating state. At the same time, the device also acts as an inrush limiter during normal operation, as the junction capacitance and on-state resistance reduces the amount of current that can enter the circuit.

The SMBJ22 is an ideal device for protection against transient voltage spikes and surges, with its low reverse breakdown voltage and high surge power ratings. The working principle is straightforward and it is suitable for a variety of applications. Also, its leadless package makes it easy to install as it can simply be surface-mounted.

The specific data is subject to PDF, and the above content is for reference