BZW04-19BHB0G

TVS - Diodes

TVS diodes, also known as Transient Voltage Suppression diodes, are components that protect sensitive electronics from voltage spikes and transients created by lightning and other sources. They are made up of avalanche and Zener semiconductor junctions that protect electronic circuits and stored energy against over-voltage or short circuit transients. TVS assemblies, for instance, are widely used in automotive, communication, and industrial applications.

BZW04-19BHB0G Application Field and Working Principle

The BZW04-19BHB0G TVS diode is specifically designed for automotive and communication applications. It is capable of suppressing voltages between 5 and 19V, and is capable of dissipating an energy of 7.5 Watts in the event of an electrical surge, typically caused by lightning or electrostatic discharge (ESD). The diode also has low effective capacitance, making it ideal for applications involving high-speed transmissions, such as Ethernet.

The BZW04-19BHB0G diode works by using the Zener junction, which forms one part of an avalanche diode. This junction is responsible for suppressing a voltage surge over a set voltage level, while the avalanche diode is responsible for shunt current resulting from high energy inductive switching or lightning from penetrating the circuit. The diode has a Cathode-Anode breakdown voltage of 19V and a peak pulse power dissipation of 7.5W, as well as an internal avalanche clamping protection.

BZW04-19BHB0G Advantages

The BZW04-19BHB0G TVS diode has a number of advantages, including its ability to handle higher energy transients than standard Zener diodes, which makes it much more suitable for automotive and communication applications. This diode also offers protection against over-voltage and reverse polarization, and features a low effective capacitance, making it suitable for high-speed transmission applications. Another advantage is its high protection ratings in terms of peak pulse power dissipation, making it much more reliable than standard Zener diodes.

Conclusion

In conclusion, the BZW04-19BHB0G TVS diode is a reliable choice for applications involving automotive, communication, and industrial applications. With its high peak power dissipation and internal avalanche clamping protection, this diode offers effective protection against over-voltage, reverse polarization, and electrical surges. It also has a low effective capacitance, making it suitable for high-speed transmission applications.