PN2222A_J18Z

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PN2222A_J18Z Transistor

The PN2222A_J18Z is a NPN bipolar junction transistor (BJT) that is commonly used in many electronic switching applications. It is a low cost, low power, low voltage, single-transistor device, with a gain between 40 to 140. It is most often used in amplifier and switching circuits, and is also useful for various industrial and automotive applications.

Applications

The PN2222A_J18Z transistor is suitable for many different applications, such as amplifiers, switches, data converters, power management, audio amplifiers and motor control circuits. It is often used in audio amplifiers, DC-DC converters, low voltage power circuits and industrial applications. It is also suitable for use in automotive applications, such as switches, circuits, relays and vehicle control.

Package Style

The PN2222A_J18Z is available in a TO-226AA package, with a metal tab for greater heat dissipation. The package size is 4.19 x 3.81 x 3.73mm, with a pitch of 0.5mm. It has a maximum power rating of 625 mW, with a junction temperature of 150°C.

Working Principle

The PN2222A_J18Z is a bipolar NPN junction transistor. It consists of three layers, arranged in a vertical stack that are separated by two layers of insulating material. The bottom layer, called the Base, is made up of p-type semiconductor material. The Base layer is connected to the emitter pin and is voltage sensitive, allowing the transistor to switch from an “on” to an “off” state when a voltage is applied to it. The next layer is called the N-type layer and acts as a collector for the emitted electrons. The third layer is an N-type layer and is connected to the collector pin. The N-type layers allow electrons to move from the emitter to the collector by way of the base layer. When the voltage applied to the base pin is higher than the collector pin, the switch is on and current can flow from the emitter to the collector. When the voltage applied to the base pin decreases, the switch is off and the transistor switches to an off state.

Benefits

The PN2222A_J18Z transistor is ideal for simple applications due to its low cost, low power and low voltage operation. It is also suitable for switching and amplifier circuits up to 625 mW and has a gain range of between 40 to 140. In addition, its small size makes it ideal for use in applications where space is limited.

Conclusion

The PN2222A_J18Z is a single transistor device that is used extensively in many different applications. It is low cost, low power, low voltage and has good gain performance giving it the potential to be used in many power management, audio, switching and amplifier applications. Its small package size also makes it a great choice for applications where space is limited.

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