ZTX953STZ

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The ZTX953STZ is a commonly used bipolar junction transistor (BJT). It belongs to the single configurations of transistors, making it a cost-effective solution in a variety of applications. In this article, we will look at its field of application, working principle, and characteristics.

Application field

The ZTX953STZ is mainly used in audio pre-amplifiers, signal-switching circuits, and general-purpose amplification. It is a signal amplifier which usually operates in linear mode, providing a stable output voltage with minimal distortion. It has two high impedance signal input ports and one high-power output port, making it suitable for a variety of applications. It is also used in high-side switching applications such as converting AC signals to DC signals, or in interfacing a low-voltage signal source with a power source.

Working principle

The ZTX953STZ comprises of three terminals, namely base, emitter, and collector. The base terminal is where the control signal enters, the emitter is where the output signal is generated, and the collector is the current return terminal. The current is mostly directed to the collector when the base voltage is positive and below the base cutoff voltage. When the base voltage is more than the base cutoff voltage, the current is mainly directed to the emitter terminal and the transistor is in the saturation region. The ZTX953STZ has a low saturation voltage and a high current gain, contributing to its superior performance in most applications.

Characteristics

The ZTX953STZ has nominal current gain, or h(FE) from 50 to 700. The maximum collector power dissipation is rated at 1.5W at 25°C and a maximum temperature of 150°C. It has a DC current gain of h(FE) of 50 to 700, limiting the collector-emitter saturation voltage to a maximum of 0.4V. It has a maximum standing collector current rating of 0.5A. The ZTX953STZ has a base-emitter voltage of 6V and a base-collector voltage of 6V. The junction temperature of the ZTX953STZ can be up to 150°C and its maximum total power dissipation is 1.5W.

Conclusion

The ZTX953STZ is a versatile and cost-effective single-configuration bipolar junction transistor with a variety of applications in audio pre-amplifiers, signal-switching circuits, and general-purpose amplifiers. It has a very low saturation voltage, a high current gain, a maximum collector power dissipation of 1.5W and a maximum total power dissipation of 1.5W. It is the best choice for signal processing and interfacing applications.

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