PMBTA42,235

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	300V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 2mA, 20mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	40 @ 30mA, 10V
Power - Max:	250mW
Frequency - Transition:	50MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	TO-236AB (SOT23)
Base Part Number:	PMBTA42

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Introduction to PMBTA42,235

PMBTA42,235 is a transistor that falls under the category of Transistors - Bipolar (BJT) - Single. Transistors, in particular, Bipolar Junction Transistors (BJT), are three-terminal semi-conductor devices used to manipulate currents and voltages in a variety of electronic systems, from amplifiers and oscillators to computers and other sophisticated electronics systems. Bipolar Junction Transistors (BJT) have three terminals, referred to as the collector, base and emitter. In general, the collector and emitter are known as current terminals, while the base is known as the control terminal. As it is, a Bipolar Junction Transistor (BJT) has two modes of conduction, not just one, which greatly contributes to its usefulness. As such, the PMBTA42,235, falling under the Transistors - Bipolar (BJT) - Single category, is a device developed to carry out these tasks in several applications.

Applications of PMBTA42,235

The most common applications for the PMBTA42,235 are in amplifier circuits, switching circuits, oscillators, logic circuits and other components used for reading and writing information. These transistors are usually found in audio amplifiers, light dimmers, switching regulators and power supplies. The PMBTA42,235 is used in many digital circuits as well, like logic circuits used for binary calculations and other operations.In general, the PMBTA42,235 can be used wherever an electronic circuit needs to control the flow of current and voltage, thus making it immensely useful. Additionally, its extremely small size and low cost make it popular among many applications.

Working Principle of PMBTA42,235

A Bipolar Junction Transistor (BJT) functions by using current flowing through the base terminal to regulate the amount of current flowing through the collector and emitter terminals. To explain this further, the PMBTA42,235 has an extremely simple working principle; current flows through the base terminal, and this current is amplified as it passes through the collector and emitter terminals. This is because the base terminal in a Bipolar Junction Transistor (BJT) acts as a current amplifying device, allowing the number of electrons to be controlled.At the collector-base junction, electrons that enter the base are locked in place by the collector, creating a depletion layer that allows current to flow from the collector to the base junction. This current is then amplified by the high resistance of the base-emitter junction and flows from the emitter to the collector. As a result, a very small current in the base is amplified to create a much larger current flowing from the emitter to the collector. This is why the BJT is often referred to as an “amplifying device”.

Conclusion

In conclusion, the PMBTA42,235 is a popular transistor that falls under the category of Transistors - Bipolar (BJT) - Single. This transistor is commonly used in many applications that require controlling the flow of current and voltage. Its working principle is also quite simple yet effective; its base terminal acts as a current amplifying device, allowing electrons to be accounted for and amplified. Thus, the PMBTA42,235 is a useful device that is often found in a variety of applications.

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