PDZVTR36B

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Diodes are electronic components that are utilized in a wide array of electrical circuits. They are an integral part of most modern electronic devices and can be used for both rectification and signal switching. The Zener diode is one type of diode with unique properties that make it especially useful for voltage regulation. The specific diode in question is the PDZVTR36B, which is a single Zener diode that offers enhanced performance for high-frequency applications.

Overview

The PDZVTR36B is specifically designed to handle high-frequency signals, making it ideal for bi-directional applications, as well as voltage clamping. It has an operating temperature range of -25°C to +125°C and can handle up to 36V of reverse voltage. Additionally, it has a maximum surge current of 150mA and 500mA of power dissipation. The PDZVTR36B is packaged in a SOD-323 form factor, which is the industry standard for these types of diodes.

Application Fields

The PDZVTR36B is primarily intended for high-frequency applications that require voltage protection. It is commonly utilized in cell phone chargers, lithium-ion battery protection, and automotive electronics. Additionally, it is often used as part of general-purpose circuit protection and board-level ESD protection, helping to prevent costly repair bills. The high-frequency performance of the PDZVTR36B also makes it a popular choice for motor drivers, switching power supplies, and logic level drivers.

Working Principle

The working principle of the PDZVTR36B is fairly straightforward. When a forward bias voltage is applied to the diode, its p-n junction will become forward biased and current will be able to flow through it. This current will continue until the applied voltage reaches a certain level, at which point the junction will become reverse biased and the current will be cut off. The reverse voltage at which the junction becomes reverse biased is referred to as the “breakdown voltage”. The breakdown voltage of the PDZVTR36B is 36V, which makes it especially well-suited for protecting against high voltages.

The Zener diode also has other properties that make it ideal for voltage regulation. When the application of a forward bias voltage exceeds the breakdown voltage, the diode will enter into a state of avalanche breakdown. This state occurs when the diode begins to conduct a large amount of current, which causes it to emit a significant amount of heat. The excess heat causes the junctions of the diode to “run away”, allowing for a very low and steady voltage drop along the entire length of the diode. This makes the diode ideal for regulating the voltage across a load.

Conclusion

The PDZVTR36B is a single Zener diode designed specifically for high-frequency applications. It provides enhanced performance and can handle up to 36V of reverse voltage. It is commonly used in cell phone chargers, lithium-ion battery protection, automotive electronics, and general-purpose circuit protection. The working principle of the PDZVTR36B is based on its breakdown voltage and the ability to enter into an avalanche breakdown state which allows for voltage regulation.

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