ZPY24-TR

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	24V
Tolerance:	±5%
Power - Max:	1.3W
Impedance (Max) (Zzt):	8 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 18V
Operating Temperature:	175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41

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Introduction to the ZPY24-TR

The ZPY24-TR is an NXP diode device series, belonging to the Zener family single diode range. It is specifically designed to provide protective solutions against over-voltage transients, commonly known as ‘surges’, caused by either external or internal sources. Typical industries which use this device include automotive, industrial, communications, audio visual and data processing.

Application Fields

This NXP device family consisits of both normal and high temperature options and can be used in a variety of applications within these industries. The ZPY24-TR is designed for use in switch-mode power supplies and highly sensitive electronics, and are suitable for use in an automotive environment as it has an ESD rating of ±8kV.The Zener series also provides over-Voltage protection solutions in electronic systems such as Display Panels and TV displays. Furthermore, the device can protect private networks, telephone systems and ATM machines.

Working Principle

The Zener series single diode ZPY24-TR operates by way of a constant voltage feature. When the voltage level exceeds the diode’s rated voltage value, the diode will start to conduct current. This current then passes though the diode, maintaining the voltage of the system at its rated value. When there is an undesired increase in voltage, the diode acts as a resistor, clamping the voltage so that it is limited to or below the rated voltage value of the diode. The diode will absorb energy during this process and dissipate it into the form of heat created by Joule heating. In another application, the Zener series single diode ZPY24-TR can provide protection from over-current protection. This works in a similar manner to the aforementioned working principle. It acts as a short circuit, limiting the current passing through the device and so protecting the entire circuit from being damaged.

Conclusion

The NXP diode device series, ZPY24-TR, is ideally designed for addressing over-voltage and over-current transients. The device is used in a variety of applications, ranging from automotive and industrial to communications, audio visual and data processing. Its operation is based on the concept of a constant voltage mechanism, where upon an unwanted increase in voltage or current, the diode effectively clamps the voltage or current and short circuits it, thus protecting the entire system from damage.

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