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1N971B TR Application Field and Working Principle

Introduction

The 1N971B TR is a general purpose TR, or transient voltage suppressor. TRs are designed to limit the peak current flow and maintain the output at less than the specified level. The 1N971B TR is a particular type of TR – Zener – single.

Features

1N971B TR devices offer benefits for applications including:

• Provides a minimal output voltage level
• High power dissipation
• Low reverse breakdown voltage

Applications

Depending on its design and application, a TR can be used in various places to provide transient protection. 1N971B TRs are typically used in set-top boxes, DVD players, CD players, and other consumer electronic products.

Working Principle

When supplying high voltage sources, especially in consumer electronic applications, transient (or spikes) can occur. These transients can be damaging to multiple components and threaten the reliability of the device. TRs are designed to limit the peak current flow and maintain the output at less than the specified level. The primary purpose of the 1N971B TR is to provide a minimal output voltage level to these devices when in operation.

When a TR is placed in a circuit, the device will draw a small amount of current up to a point where the voltage drop across the device is equal to the breakdown voltage. As the voltage across the device approaches the breakdown voltage, the device will start to conduct current, and the voltage drop across the device will increase. As the current increases, the voltage across the device will remain at a constant level until the maximum current rating is reached. At this point the device will be at full conduction and the current flow will remain constant, regardless of the voltage.

Conclusion

The 1N971B TR is a versatile and reliable Transient Voltage Suppressor. It is designed to maintain the output at less than the specified level and provide transient protection. The device is typically employed in consumer electronic products to protect against transient spikes or surges, and can be used in a wide range of applications.

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