SMBJ150D-M3/H application field and working principle

The SMBJ150D-M3/H is a unidirectional TVS diode, which is often used as a protective element in electrical and electronic circuits. The device can provide overvoltage protection for various sensitive equipment when it is subjected to lightning or other overvoltage transients, thereby effectively suppressing the energy during its transient time.

The SMBJ150D-M3/H is usually used in power circuits and consumer electronics, especially in personal computers, servers, switches, and other communication systems to protect them from high transient voltage generated by lightning or other sources.

How does it work?

A TVS diode is a device similar to a Zener diode in structure and characteristics. However, unlike a Zener diode, it has a much higher energy absorption capacity and can react very quickly when subjected to transient voltage. The SMBJ150D-M3/H is a unidirectional TVS diode that can be used in series configurations. In series configurations, the device reacts to the voltage on the line and works like a switch to shunt the excess voltage away from the electronic circuit.

The SMBJ150D-M3/H has a peak pulse power rating of 500 Watts (W), which allows it to absorb sudden and large amounts of energy and diverts them away from the circuit. It also has a peak pulse current rating of 2.5kA (kiloamperes). This ensures that even if the voltage peaks, the current flowing through the diode is kept below the maximum rating.

Benefits

TVS diodes serve several important purposes. One of the primary advantages of using a TVS diode is that these devices are essentially passive components that can be installed in large numbers without any additional system components. This also makes them relatively inexpensive and adds to their convenience.

Another major benefit of using a SMBJ150D-M3/H is that it can protect sensitive equipment from overvoltages and still provide good signal integrity. By diverting the transient voltage away from the circuit, it prevents any damage to the electronic components due to the surge. It also prevents the system from oscillating and causing any electrical or electromagnetic interference.

Conclusion

The SMBJ150D-M3/H is a unidirectional TVS diode, which is A device that can provide overvoltage protection for various sensitive equipment when it is subjected to lightning or other overvoltage transients, It has a peak pulse power rating of 500 Watts (W) and a peak pulse current rating of 2.5kA (kiloamperes). By diverting the transient voltage away from the circuit, it prevents any damage to the electronic components due to the surge and ensures good signal integrity.