![]() ![]() Given below are the specifications of PN2222 and PN2222A transistors in a tabular form. E Emitter Current comes out of transistor through the emitter, usually grounded. C Collector Current flows through the collector, usually connected to a load. It is commonly used in audio amplifiers, switching circuits, and voltage regulators.PN2222 Pinout Diagram Pin Name Description B Base Controls the transistor’s biasing, used to turn it on and off. MPSA42: The MPSA42 is an NPN transistor that is similar to terms of voltage and current ratings. 2N2222: The 2N2222 is a higher voltage and current rated version of the PN2222 transistor.Ĥ. ![]() 2N3904: NPN transistor that is similar to the in terms of voltage and current ratings.ģ. BC547: NPN transistor that is similar to the terms of voltage and current ratings.Ģ. Other data sheets are available within the file: PN2222Aġ. General purpose switching and linear amplification. Current limiting: It can be used to limit the amount of current flowing in a circuit.Ħ. Voltage Regulation: The transistor can be used to regulate voltage by acting as a variable resistor.ĥ. Oscillators: The transistor can be used in oscillator circuits to generate signals of a specific frequency.Ĥ. Switching: The transistor can be used in switching circuits to turn on and off loads such as motors, lights, and relays.ģ. Amplification: The transistor can be used in amplifier circuits to amplify weak signals.Ģ. Storage Temperature: Tsg = – 55 ~ +150☌ PN2222 Applications:ġ. Collector to Emitter Voltage: Vceo = 30 Vħ. Low frequency response: The transistor may not be suitable for high-frequency applications due to its limited frequency response.ġ. Limited voltage and current handling capacity: The PN2222 transistor has a maximum collector-emitter voltage rating of 30V and a maximum collector current rating of 600mA, which may limit its use in some high-power circuits.Ģ. Reliable performance: The transistor has a long history of reliable performance in electronic circuits.ġ. Versatile: The transistor can be used in a wide range of electronic circuits, including amplifiers, oscillators, and switching circuits.ģ. Low cost: Relatively inexpensive, making it a cost-effective choice for many applications.Ģ. In amplifier circuits, it can be used to amplify weak signals, while in switching circuits, it can be used to turn on and off loads such as motors, lights, and relays.ġ. The PN2222 transistor can be used in a variety of electronic circuits, such as amplifiers, oscillators, and switching circuits. The base is the control pin that allows current to flow between the emitter and collector. The emitter is connected to the negative or ground side of the circuit, while the collector is connected to the positive or supply side. The transistor is housed in a TO-92 package and has three pins: the emitter, the base, and the collector. It is a low-power NPN transistor that has a maximum collector current rating of 600mA, a maximum collector-emitter voltage rating of 30V, and a maximum power dissipation of 625mW. The PN2222 is a bipolar junction transistor (BJT) that is commonly used in electronic circuits for amplification, switching, and other functions. This is 40V, 600mA, NPN switching transistor in a TO-92, SOT54 plastic package. ![]()
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