PDZ6.8BZ

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Diodes are two-terminal electrical components that can be used to control the flow of current from one point to another within an electrical circuit. One type of diode, called a Zener diode, has a special ability to regulate the voltage in a circuit by allowing reverse current to flow when the voltage reaches a certain limit. The PDZ6.8BZ is a single Zener diode used to regulate voltages within circuitry.

This diode has a breakdown voltage of 6.8 volts in the reverse bias. This means that any voltage exceeding 6.8 volts will allow a reverse current of up to 500 mA to flow. The voltage regulation is such that the voltage at the junction of the diode will remain within 5% of 6.8 volts once the reverse current begins to flow. In other words, the diode will keep the voltage at the junction within (6.8 ± 0.34) volts when reversed-biased. This component also has a forward voltage drop of 1.1 volts and it is rated for maximum continuous power dissipation of 350 mW.

PDZ6.8BZ is used in circuits that requires a steady voltage of 6.8 volts, even when the current varies. It can also be used for over-voltage protection since it enables a current to pass in the opposite direction when the voltage reaches 6.8 volts. This is a handy feature for preventing vital components from being damaged due to over-voltage.

The device is most often used in regulated power supplies, voltage amplifiers and clamp circuits. These circuits may be found in consumer electronic items such as computers and televisions. The PDZ6.8BZ can also be used to provide protection from electrostatic discharge (ESD) and radio-frequency interference (RFI).

The working principle of the PDZ6.8BZ is fairly straightforward. If a positive voltage develops across the diode, it will cause a current to flow through the diode in the forward direction. If a negative voltage develops across the diode, it will cause a reverse current to flow through the diode. The amount of current that is allowed to flow in the reverse direction is determined by the breakdown voltage of the diode. Once the voltage reaches the breakdown voltage, a heavy current will flow in the reverse direction. As a result, the voltage at the junction of the diode will remain constant at around 6.8 volts, as long as the current does not exceed 500 mA.

In summary, the PDZ6.8BZ is a single Zener diode used to regulate the voltage in an electrical circuit. It has a breakdown voltage of 6.8 volts and a forward voltage drop of 1.1 volts and it is rated for maximum continuous power dissipation of 350 mW. The diode can protect vital components from being damaged due to over-voltage and it can be used in regulated power supplies, voltage amplifiers, clamp circuits and ESD/RFI protection circuits. The working principle of the diode is that it allows a reverse current to flow when the voltage reaches a certain limit, thus keeping the voltage at the junction of the diode within (6.8 ± 0.34) volts when reversed-biased.

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