TIP42C Discrete Semiconductor Products

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The TIP42C is a medium power bipolar transistor. It is a silicon controlled NPN transistor, classified as a single bipolar junction transistor (BJT). It is designed for general purpose use including, but not limited to, amplification, switching and conditioning of signals.

The main properties of the TIP42C include a maximum collector-emitter voltage rating of 45 volts, a maximum collector current rating of 600mA, and a maximum power dissipation rating of 1 Watts. The minimum and maximum operating currents are 0.02mA and 500mA respectively. Other parameters include a forward voltage of 0.8 volts, an operating temperature range from -65°C to +150°C, and typical beta of ~200.

The TIP42C is an all-purpose transistor device for voltage amplification and switching applications. It is often used as a replacement for other discrete transistors, such as the BC327 or the NPN transistor 2N5401. The TIP42C is also frequently used as the output stage of a simple switchmode power supply.

The TIP42C is based on the “PNP” transistor configuration. In this configuration, there are three pins on the transistor: the emitter, the base, and the collector. When a DC voltage of a certain level (forward base-emitter voltage; typically 0.7 to 0.9V) is applied to the base of the transistor, the current flows from the emitter to the collector. This current is amplified depending on the current gain of the transistor. This is the basic working principle of the transistor that is utilized in the TIP42C.

The TIP42C has a wide range of applications, including signal amplifiers and switches. Its PNP configuration makes it suitable for various power supply designs, as it can act as an amplifier and/or a switch for the signal. The TIP42C can also be used as part of a Voltage Regulator Circuit (VRC) to provide a regulated current output from an unregulated AC or DC input. Additionally, it can be used in power switching applications, such as a MOSFET driver.

The TIP42C is a great option for applications requiring a general-purpose amplifier, switch, or driver transistor. Its PNP configuration and the medium power, current and voltage ratings of the TIP42C make it suitable for a variety of tasks. Furthermore, the relatively low cost and availability of the TIP42C further contribute to its popularity.

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