PZU6.8BL,315

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Diodes have long been used in electronics to control current flow, but until the development of the Zener diodes, it was not possible to produce diodes which could reliably control current in both directions. The Zener diode was invented to capitalize on the fact that a diode\'s reverse breakdown voltage can be made very stable by controlling the doping level and the amount of surface area exposed to the junction. The PZU6.8BL,315, one of the most common Zener diodes, is a semiconductor device that is used to regulate the voltage levels in circuits, and to protect the circuits from voltage spikes and power surges.

Application Fields

The PZU6.8BL,315 Zener diode finds application in a large number of circuits such as power supplies and voltage regulators. It is a series of 5.1–6.2V Zener diodes with a tolerance of ±5%. Its low power dissipation makes it suitable for use in small circuits, and its small size allows it to be used in many portable applications. It can be used as a voltage reference in precision circuits and as a slightly adjustable current regulator when connected in reverse.

Working Principle

The PZU6.8BL,315 Zener diode works on the reverse breakdown principle. When the diode is connected in a circuit in the reverse direction, a voltage is applied to it in the opposite direction to the normal operation. If the voltage applied is greater than the diode\'s specified reverse breakdown voltage, then current will flow in the reverse direction, creating a voltage drop across the diode. This voltage drop is referred to as the Zener voltage and it will remain constant regardless of the voltage applied beyond the specified breakdown voltage.

The Zener diode can be used to regulate voltages in circuits by connecting it to a power source, such as a battery, with a resistor in series. The resistor is necessary to limit the current flowing through the diode, otherwise too much current could flow and damage the diode. The resistance is chosen so that the voltage across the diode is equal to the Zener voltage. The Zener diode will then act to maintain this voltage irrespective of fluctuations in the battery voltage.

The PZU6.8BL,315 diode can also be used to protect circuits from power surges and voltage spikes by connecting it in series with the circuit in the reverse direction. If a voltage spike occurs, the Zener diode will clamp the voltage to the Zener voltage level. This will protect the circuit from damage caused by the overvoltage.

Conclusion

In conclusion, the PZU6.8BL,315 Zener diode is a versatile component that finds application in a large range of circuits. It is used for both voltage regulation and for protection from overvoltage and power surges. The diode works on the principle of reverse breakdown and its voltage is maintained at the specified breakdown voltage, no matter how much more voltage is applied. The low power dissipation and small size of the PZU6.8BL,315 Zener diode makes it suitable for use in a variety of circuits.

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