UNR9217J0L Discrete Semiconductor Products

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Introduction

UNR9217J0L is a bipolar junction transistor, also referred to as a BJT, manufactured by Unirise Electronics Co., Ltd. It is a single, pre-biased device, meaning that it has been pre-biased with a small current, allowing it to produce higher yields with less effort than traditional BJTs.

Application Fields

UNR9217J0L can be used in a wide range of applications, such as audio amplification, signal switching and amplification, HVAC control and motor control. It is also commonly used in high-speed switching circuits, as the bias current is low and can be controlled using an external voltage.

Working Principle

The UNR9217J0L consists of three layers: the emitter layer, where majority carriers are injected, the base layer, where minority carriers are injected, and the collector layer, where majority carriers are collected. The injected carriers diffuse between the layers, and form majority and minority carrier currents which, when combined, result in a net current.

This net current is controlled by varying the external voltage applied to the base terminal. When the base voltage is increased, the minority carrier current is decreased, resulting in a reduction of the net current. Conversely, reducing the base voltage will increase the minority carrier current, resulting in an increase in the net current.

Conclusion

The UNR9217J0L is a bipolar junction transistor. It is a single, pre-biased device, meaning that it has been pre-biased with a small current, allowing it to produce higher yields with less effort than traditional BJTs. The UNR9217J0L can be used in a wide range of applications, such as audio amplification, signal switching and amplification, HVAC control and motor control. The working principle of a UNR9217J0L is based on varying the external voltage applied to the base terminal in order to control the net current.

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