BZG04-180-HM3-08

A BZG04-180-HM3-08 is a type of single Zener diode, which is a semiconductor device allowing current to flow in one direction only, while also providing current regulation. Generally, it has a reverse breakdown voltage that is different from the usual forward-current rating. Zener diodes are used for applications such as regulating voltage in voltage regulator circuits, protecting against induction surge and preventing oscillations in digital circuits.

The BZG04-180-HM3-08 diode is an axial leaded single Zener diode with an operating temperature range of -55 to +125 °C. Its maximum reverse voltage is 180 V and its maximum power dissipation is 800 mW. It is a type of Zener diode for general use, with a maximum forward surge current of 5 A and a type of glass used in its construction.

The working principle of the BZG04-180-HM3-08 Zener diode is based on its reverse breakdown voltage ratings. When the diode is reverse biased, a voltage greater than the reverse breakdown voltage is applied across the diode\'s anode and cathode, a significant amount of current flows through the junction, resulting in a large drop in voltage across the terminals. This voltage drop is stabilized and much lower than the original voltage supply and can be used to regulate the output voltage, also known as “Zener Voltage Regulation”.

When the diode is forward biased, a much smaller current flows through the diode due to its low forward resistance, resulting in a small voltage drop across the terminals. This current, when below the Zener breakdown voltage, passes through the diode with virtually no voltage drop. When the current exceeds the Zener breakdown voltage, the characteristic Zener voltage regulation takes effect, and the voltage across the terminals drops, with the amount of current increasing and because of this, the diode can be used to limit the amount of current passing through it.

The BZG04-180-HM3-08 diode has various uses. It can be used to regulate the voltage in voltage regulator circuits and also protect against overload in AC/DC power supplies. It can be used to limit the voltage spikes that are generated by inductive loads such as motors and relays, and protect circuits against overvoltage conditions caused by inductive spikes. Finally, it can also be used in digital circuitry to prevent feedback circuits from starting oscillations.