ZPY3V9-TR

Introduction to ZPY3V9-TR

ZPY3V9-TR is a single Zener diode manufacturer by Taiwan Semiconductor and is typically used for various applications such as circuit protection, voltage regulation, and signal switching.

Application Field of ZPY3V9-TR

The ZPY3V9-TR diode is mostly used in linear voltage regulator circuits, voltage clippers and regulators, and circuit protection due to its excellent stability and low thermal resistance. This diode is designed to operate at a reverse voltage of 3.9 V and has a maximum current rating of 500 mA.

Since ZPY3V9-TR is typically a Zener diode, it can also be used in signal switching applications to filter out electrical noise and spikes. Additionally, it can be used in AC to DC rectification circuits as a voltage reference and voltage stabilizer, or to provide a simple form of protection for sensitive devices.

Working Principle of ZPY3V9-TR

The Zener diode works on the principle of reverse breakdown. Under normal operating conditions, current flows from the anode to the cathode when an external voltage is applied. However, beyond a certain voltage, the diode breaks down, and current starts to flow from the cathode to the anode, resulting in a stable voltage across the diode.

In the ZPY3V9-TR diode, this breakdown voltage is 3.9 V. This means that when an external voltage greater than 3.9 V is applied across the diode, the current starts to flow from the cathode to the anode, resulting in a constant voltage across the diode. This also protects the circuit from any further over-voltage that may damage sensitive components connected to it.

Conclusion

The ZPY3V9-TR is a single Zener diode designed to operate at a reverse voltage of 3.9V and has a maximum current rating of 500 mA. It is typically used for linear voltage regulator circuits, voltage clippers and regulators, and circuit protection due to its excellent stability and low thermal resistance. Furthermore, it is also used in signal switching applications to filter out electrical noise and spikes, and in AC to DC rectification circuits as a voltage reference and voltage stabilizer.