PN2222TA Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	600mA
Voltage - Collector Emitter Breakdown (Max):	30V
Vce Saturation (Max) @ Ib, Ic:	1V @ 50mA, 500mA
Current - Collector Cutoff (Max):	10nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 150mA, 10mV
Power - Max:	625mW
Frequency - Transition:	300MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92-3
Base Part Number:	PN2222

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Introduction

The PN2222TA is a PNP transistor device made out of a highly reliable epitaxial construction. It functions as a switch and can be used as an amplifier in a variety of applications, because of its small size and low cost. Because of its low-power consumption and excellent performance characteristics over very wide temperature ranges (-65 to +150 degrees Celsius), PN2222TA has become an increasingly popular transistor in the industry.

Application Field

PN2222TA can be used in a wide range of fields. Its usage ranges from automotive control systems, to consumer and industrial products, to medium power switching applications. Its ability to operate at low electrical power levels and its high-gain amplifying properties make it suitable for small to medium-power switch control systems. In automotive control systems, the PN2222TA’s ability to handle high amounts of current, low operating temperatures, and wide temperature range make it suitable for use in engine control systems. The PN2222TA is a reliable, low-cost transistor for use in many automotive applications, including headlamp control and cruise control. The PN2222TA is also suitable for use in consumer and industrial products, as it is highly reliable and robust. It can be used in various control systems that require low-powered applications. Examples include lighting systems, motor and robotic control, process control, and home automation. In medium power switching applications, the PN2222TA offers superior switching performance and increased durability, making it suitable for use in industrial automation, security and HVAC systems.

Working Principle

The PN2222TA relies on the principles of the bipolar junction transistor (BJT) to perform its switching and amplifying functions. BJTs are commonly used for amplifying small signals, providing gain and isolation, and are also used in switching applications. BJTs involve three terminals: Collector, Base and Emitter. The current flowing through the BJT does so between the Collector and the Emitter and is controlled by the Base. As a switch, when the voltage in the Base is higher than the voltage in the Collector, the BJT is “on”, providing a path for current to travel from the Collector to the Emitter. When the voltage in the Base is lower than the voltage in the Collector, the BJT is “off”, blocking the current path. In amplifying applications, the BJT sees a small input current in the Base and amplifies it to a larger output current in the Collector. The amount of gain is defined by the transistor’s current gain ‘hFE’, which is often several hundred times higher than the current flowing into the Base.

Conclusion

The PN2222TA is a modern, small, reliable and low-cost epitaxial based BJT transistor device, capable of both switching and amplifying applications. It can be used in a wide range of fields from automotive control systems and consumer electronics, to small to medium power switching applications. It’s durable and reliable, able to withstand extreme temperatures and low power levels. The PN2222TA relies on the principles of the BJT to switch and amplify small signals, with a current gain ‘hFE’ that is several hundred times higher than the current flowing into the Base.

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