BZW04-48B-E3/73

TVS - Diodes: BZW04-48B-E3/73 Application Field and Working Principle

Transient Voltage Suppressor diodes, or TVS diodes, are special purpose diodes that have been specifically designed to protect sensitive electronics from high voltage transients. The BZW04-48B-E3/73 is a TVS diode designed for overvoltage protection in high reliability applications. It has an operating voltage range of -42 V to + 48V and a reverse breakdown voltage of 24 V, as well as an excellent power dissipation of 1000 mW at 25 °C. It is easy to integrate into existing circuit designs due to its small size and low capacitance.

The BZW04-48B-E3/73 can be used to protect a wide range of circuits and systems from overvoltage transients. In fact, it could be used in any situation where the supply voltage exceeds the maximum rated voltage of the protected electronic devices. It is commonly used to protect circuits from ESD (electrostatic discharge) pulses and can also be used to protect against lightning induced surges and transients. The BZW04-48B-E3/73 can also be used in systems where high levels of radiated energy is present, such as microwave ovens, or where there is a higherthan-normal level of electrical noise.

The working principle of the BZW04-48B-E3/73 is fairly simple, yet incredibly effective. At normal operating voltages, the TVS diode acts like an open circuit (meaning no current will flow through it). However, if the supply voltage exceeds the breakdown voltage of the diode (24 V for this particular model), the diode will “breakdown” and act like a very powerful short circuit, limiting the voltage to the reverse breakdown voltage. Since the diode has a much lower forward voltage than the breakdown voltage, it can only limit the voltage to the breakdown voltage, so it will not damage the protected circuit.

The BZW04-48B-E3/73 is an excellent choice for TVS application due to its high performance and reliability. Its low capacitance makes it easy to integrate into existing circuit designs, and it is capable of suppressing overvoltage transients up to 24 V. This makes it an ideal choice for protecting sensitive electronic components and systems from overvoltage transients and ESD pulses.