TZMB7V5-GS08 Discrete Semiconductor Products

Diodes - Zener - Single - TZMB7V5-GS08 Application Field and Working Principle

A Zener diode is a type of diode that allows current to flow both forward and backward. This process is called “Zener” action or breakdown. The TZMB7V5-GS08 is a high temperature Zener diode, which can operate up to 150°C. It specifically has a reverse breakdown voltage of 7.5V and a power dissipation of 350mw.

Application Field

TZMB7V5-GS08 Zener diodes can be utilized in a range of electronic designs needing stable, precise voltage regulation. Since it has a relatively high power rating, the TZMB7V5-GS08 is designed for applications working in high temperature environments and associated with high power loads. Examples of possible applications would include:

• Surge suppression in automotive systems
• EMI filter circuits
• Power line surge suppressors
• Stabilization circuits for higher voltage transistors used in audio equipment
• Oscillator circuits in communication equipments

Working Principle

The Zener diode works on the principle of reverse breakdown or Zener effect. Normally a diode conducts current when a positive voltage is applied to the anode, and it blocks current when a negative voltage is applied. The inherent nature of a PN junction is that if the voltage reaches above a certain level, the junction will allow current to pass in the reverse direction. This is the reverse breakdown voltage.

In the case of the TZMB7V5-GS08, the breakdown voltage is 7.5V. When the applied reverse biased voltage is higher than 7.5V, the current will start to flow in the reverse direction. This phenomenon is known as “Zener Breakdown”. The current thereon increases as the applied voltage increases, while the diode remains in breakdown state.

Types of Zener Diodes

In addition to the TZMB7V5-GS08, there are several types of Zener diodes available. These come in temperatures ranging from -65ºC to 150ºC, with either metal or glass packages. Special attention should be paid to the selection of an appropriate Zener diode for different applications. Selection parameters are reverse breakdown voltage, rated power, and package type.

Conclusion

The TZMB7V5-GS08 Zener diode is a high temperature diode suitable for high power applications. It can be used in a wide range of applications requiring voltage regulation, and is able to handle temperatures up to 150°C. When selecting a Zener diode, factors such as reverse breakdown voltage, rated power, and package type should all be considered.