How does a 2N2222A transistor work?
2N2222A transistor offers constant DC collector current like 800mA, so it is necessary to use where low to medium current is necessary. It functions on the value of high transition frequency like 250MHz through 10ns delay time, 225ms storage time, 60ms fall time & 25ms rise time. It is available in the TO-92 package.
What type of transistor is 2N2222A?
NPN bipolar junction transistor
The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds.
What is a transistor circuit?
transistor, semiconductor device for amplifying, controlling, and generating electrical signals. Transistors are the active components of integrated circuits, or “microchips,” which often contain billions of these minuscule devices etched into their shiny surfaces.
What is the gain of a 2N2222?
2N2222A has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector pin is 800mA, hence we cannot connect loads that consume more than 800mA using this transistor.
What is the beta value of 2N2222A transistor?
In this experiment we measure the constant β ≡ Ic/Ib for a 2N2222 transistor. We show that β is in fact constant in the linear regime and equal to approximately 190. In addition, we show that the linear regime is realized for base currents of Ib < 50 μ A and that in this regime the voltage hierarchy is satisfied.
What is beta of 2N2222A?
All tests done using 2N2222 and 2N2907 output transistors with Beta >40 @ IC = 400mA and Beta >27 @ IC = 500mA and VCE = 3.1V. OE and E low. PARAMETER DESCRIPTION , is essential.
How transistor works as a switch?
The transistor operates as a Single Pole Single Throw (SPST) solid state switch. When a zero input signal applied to the base of the transistor, it acts as an open switch. If a positive signal applied at the input terminal then it acts like a closed switch.
How does a transistor amplify?
A transistor acts as an amplifier by raising the strength of a weak signal. The DC bias voltage applied to the emitter base junction, makes it remain in forward biased condition. This forward bias is maintained regardless of the polarity of the signal.