MPSA42

Series:	--
Packaging:	Bulk
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	500mA
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:	625mW
Frequency - Transition:	50MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	MPSA42

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Introduction

The MPSA42 application field and working principle form a key relevant foundation for semiconductor physics and device engineering. The MPSA42 is an NPN junction transistor. It has a small signing factor and it is relatively easy to use. The MPSA42 is one of the popular bipolar junction transistors used in a variety of applications.

General Overview

The MPSA42 is a bipolar transistor that capable of performing a wide range of analog and digital functions. Bipolar transistors are widely used in transducers, amplifiers, and other active-signal-processing circuits. In addition to providing basic amplification, they remain essential components in many types of power and regulation control.The MPSA42 is a type of npn transistor, meaning it has a negative voltage at the base and a positive voltage at the collector and the emitter. It is a single-dielectric device consisting of three layers of semiconductor material: the emitter, base, and the collector. The type of the transistor is commonly defined by the differences in doping of the three layers.

Carrier Flow

The MPSA42 works by accepting electron flow from a higher voltage on the left side and delivering it to a lower voltage on the right side. It acts as a switch between two voltage sources. As an NPN transistor, the flow is from the N type region to the P type region when the base voltage is positive relative to the emitter voltage. Electrons flow from the emitter to the base, which gives them enough energy to escape and flow to the collector.The MPSA42 has two important current properties: a very low base current and a high collector current. This can be attributed to the high amplification factor of the device, allowing it to amplify low-power signals.

Biasing Methods

The MPSA42 is subject to two types of biasing - active and passive. Active biasing is the most commonly used biasing method for this type of transistor. It is based on applying a voltage between the base and the collector. The voltage applied forms a negative feedback loop that helps keep the bipolar junction transistor in saturation.Passive biasing, also known as junction biasing, is a method of biasing that protects the transistor from damage by preventing the base-emitter voltage from falling below a certain point. Junction biasing sets the base voltage at an appropriate level to ensure that the valve works correctly and that the current is flowing correctly.

Advantages of the MPSA42

The MPSA42 offers a wide range of applications, making it a popular choice for many industrial and consumer electronics. Its main advantage is its low signing factor and high gain, allowing it to amplify low-level signals efficiently.The MPSA42 also features a wide operating temperature range, making it suitable for use in many different environments. Its high thermal stability also allows it to remain reliable even in extreme temperatures.Finally, the MPSA42 is relatively easy to use, making it a popular choice for many projects and applications.

Conclusion

The MPSA42 is a popular type of NPN junction transistor that is used in a variety of applications. Its main advantage is its low signing factor and its high gain, which make it suitable for amplifying low-level signals. It also has a wide operating temperature range and is relatively easy to use, making it a popular choice for many projects and applications.

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