ZPY68-TR

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Introduction

The ZPY68-TR is a type of single Zener diode that is used in a variety of applications across many industries. It is a low-voltage Zener diode with an operating voltage range of 12 to 18 volts. This device has a high-current rating of 1.5 amps and a reverse Zener voltage of 5.2 volts. It also has an intrinsic breakdown voltage ranging from 6.2 to 8.2 volts. The ZPY68-TR has a maximum power dissipation rating of 125 milliwatts and a maximum reverse current rating of 18 mA.

Applications

The ZPY68-TR Zener diode is ideal for use in voltage regulation, voltage sensing applications, and radio frequency (RF) noise suppression. It is also frequently employed in the automotive, industrial, and consumer electronics industries. Some of its most common applications include low-power overvoltage protection, transient-voltage suppression, and reverse-voltage protection. It can be used to provide a stable reference voltage in power-supply circuits, voltage-controlled oscillators, amplifier stages, and video circuits.

Working Principle

A Zener diode is a type of diode that utilizes avalanche breakdown, rather than a traditional P-N junction. This is achieved when the applied voltage surpasses the device’s specified breakdown voltage. An avalanche breakdown occurs when the applied reverse voltage creates an electron-hole pair within the atom’s depletion region, generating large amounts of current that are not usually present in traditional P-N junction diodes. This causes the diode to conduct in the reverse direction, clamping the otherwise unregulated voltage.

Design Considerations

When designing circuits with Zener diodes, several factors must be taken into account. The most important of these is the range of voltages that the diode is expected to handle. It is important to ensure that the Zener diode’s breakdown voltage is sufficient for the circuit application. In addition, Zener diode designs must also consider the maximum continuous current ratings, as well as the maximum pulse current. Finally, the reverse recovery time, static capacitance, and noise characteristics must all be taken into account when designing circuits with Zener diodes.

Conclusion

The ZPY68-TR Zener diode is a versatile device that is ideal for a variety of voltage regulation, voltage sensing, and noise suppression applications. Its low-voltage rating, high-current rating, and intrinsic breakdown voltage make it particularly suitable for power-supply circuits, video circuits, and amplifier stages. When designing circuits with Zener diodes, it is important to ensure that the device’s voltage, current, and noise characteristics are best suited for the intended application.

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