SMBJ28CA M4G

TVS diodes are widely used in many different applications. SMBJ28CA M4G is a special type of diode, which belongs to the TVS (Transient Voltage Suppressor) diodes category. It is especially manufactured to handle higher surge and ESD (Electrostatic Discharge) currents. This article will explain the application field and working principle of SMBJ28CA M4G.

Application Field of SMBJ28CA M4G

SMBJ28CA M4G is mostly used in industrial applications, such as in computers, cell phones, and different kinds of vehicle electronics. It is also applied in the communication equipment, such as fax machines and modems, as well as home appliances. This type of TVS diode is also used in consumer electronics, like PDAs, MP3 players, and cameras. It is also applied in the medical industry, where it is used in pacemakers and other biomedical devices.

Working Principle of SMBJ28CA M4G

The SMBJ28CA M4G is a double diffused junction diode with a low impedance path from its anode to its cathode. This helps it to efficiently control transient overvoltages, such as those caused by electrostatic discharges and power surges, while allowing the device to work reliably without any interruption. The on-state voltage (VGS) can be adjusted to match the voltage of the protecting circuit in order to increase the system’s protection area.

When there is an ESD or surge current detected, the SMBJ28CA M4G will immediately turn on, conducting the current and reducing the overvoltage. It also acts as a clamping device, shorting any high voltage spike present and limiting it to a safe value, allowing the system to keep working without any damage. The SMBJ28CA M4G also has a high peak pulse power capability and hence can handle high energy spikes without any problem.

Conclusion

The SMBJ28CA M4G is a type of TVS diode with a wide variety of applications. Its low voltage and high current capabilities make it suitable for many different types of transient overvoltage protection. Its principle of operation is that, when an ESD or surge current is detected, the diode will immediately turn on and clamp any high voltage spike present to a safe value, allowing the system to keep working without any damage.