TIP142T Discrete Semiconductor Products

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The TIP142T is a bipolar type Transistor (BJT). This type of transistor is a single transistor unit which is used in many applications ranging from the most basic to the most complex. The transistor is comprised of two active terminals (emitter and collector) and three static terminals (base, gate, and source). In a basic configuration, the base of the transistor serves as a control voltage input and the collector acts as the output voltage. The emitter is commonly connected to the base and the gate to the emitter.

The TIP142T is a PNP transistor with a current gain (maximum collector current divided by base current) of 20-100, depending on the operating conditions. It has a maximum collector-emitter voltage of 60V and a collector-emitter saturation voltage of 350mV at 0.5A. The maximum power dissipation is 600mW. The transition frequency of the device is 125MHz with a continuous collector current rating of 3A.

In its most common and versatile use, the TIP142T is often employed as a switch. In this application, the transistor is wired in the common-emitter configuration and acts as a switch to allow or block current from flowing from the collector to the output. The base voltage can be used to control whether the transistor is in the cutoff or saturation mode, and the collector-emitter voltage is used for sensing. The base current and collector current of the transistor must also be taken into account when sizing the switching circuit.

The TIP142T transistor can also be used as a power amplifier. In this configuration, the TIP142T acts as an adjustable current source, which serves to amplify low voltage signals into higher voltage signals. This is done by connecting the emitter to a voltage source and the gate to a control signal which acts to adjust the current flow. The base to collector voltage is then adjusted accordingly to provide the desired output voltage.

The TIP142T transistor is a versatile device which can be used for a variety of applications. It can serve as a switch, an amplifier, or a current source for different circuits. When designing with this device, it is important to consider the various operating conditions and be aware of the various parameters and characteristics of the transistor. Proper interpretation of these parameters and conditions can help to ensure that the device is working correctly and provide desired performance.

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