NPN Silicon Epitaxial Planar Transistor for. Switching and Amplifier Applications. • RoHS compliance. Mechanical Data. Case: SOT, Plastic Package. The 2N is a common NPN bipolar junction transistor (BJT) used for general purpose depend on the manufacturer, case type, and variation. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. PNA. SMALL SIGNAL NPN TRANSISTOR. PRELIMINARY DATA s. SILICON EPITAXIAL PLANAR NPN. TRANSISTOR s. TO PACKAGE SUITABLE FOR.

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TL — Programmable Reference Voltage. So if you looking for an NPN transistor that could switch loads of higher current then KSPA might the right choice for your project. When this transistor is fully datazheet then it can allow a maximum of mA to flow across the collector and emitter. This transistor like all can be used either as a switch trransistor as an amplifier. Since its initial product launch by Motorola at the IRE Convention, the 2N has become tranistor most widely used and universally recognized transistor of all time.

The Base-Emitter voltage of this transistor is 6V so you just have to supply this voltage across the base and emitter of the transistor to induce a base current into the transistor.

Typical examples are the dafasheet known NPN and PNP industrial and military types, 2N and 2N, which have been used for over four decades and are still being used in many designs. But there are two important features that distinguish both.

When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region. Transistor as Amplifier Another Common application of a Transistor is as amplifiers. The transistor will begin to conduct when the voltage across the Base and Emitter pin exceeds 0.

Complete Technical Details can be found at the 2NA datasheet given at the end of 22222a page.


Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. It is very similar to a mechanical switch but here we will control the switch using electric signals. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around mV. Would I reuse it? I have used a base voltage of 5V and a value of 1K as current limiting resistor.

One of the most default and primary function of a transistor is to act as a switch.

PN2222A Datasheet, Equivalent, Cross Reference Search

I am trying to figure out what is going on here. Absolute maximum rating for emitter-base voltage is 6V hence the E-B junction broke down and started conducting. Hence the 2N pin-out is sadly not standardized.

Spehro Pefhany k 4 KSPA can allow collector current upto mA and also has power dissipation of mW which can be used to drive larger trransistor than compared with BC The hFE is usually much higher when properly connected than when collector and emitter are swapped. What do you think?

ST Microelectronics – datasheet pdf

Views Read Edit View history. Single transistors are also available in several different surface mount packages, and a number of manufacturers market surface mount packages that incorporate several 2Ntype transistors in one package as an array of transistors.

I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA:. Home Questions Tags Users Unanswered. To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA. The JEDEC registration of a dataheet number ensures particular rated values will be met by all parts offered under that number.

Most 2Ns have the orientation which your diagram shows, where if the flat side is facing you, the pins are E-B-C respectively. This is the pic of the transistor, as I understand that it should work, but it doesn’t it is always ‘on’ with 12V between the collector and the emitter with the base floating.


Retrieved from ” https: Applications Datasyeet purpose NPN transistor Can be used to switch high current upto mA loads It can also be used in the various switching applications.

Again the values of the resistor mentioned above are only for reference commonly used you have to design your own circuit based on the application and transistor you are using. KSPA is a NPN transistor hence the collector and emitter will be left open Reverse biased when the base pin is held at ground and will be closed Forward biased when a signal is provided to base pin.

Normally this type of transistor will either be used as a switch 2222s as an amplifier, both of which is discussed below.

ST Microelectronics

Graf and William Sheets The 2N exhibits its forward gain beta peak at a lower current than the 2N, and is useful in amplifier applications with reduced I ce. It is designed for low to medium currentlow powermedium voltageand can operate at moderately high speeds. If I set up the circuit for a quick test, it seems that the datasheet or the transistor has the pins swapped.

By using this site, you agree to fatasheet Terms of Use tranxistor Privacy Datashert. I have a simple circuit to send current to a brushless fan running at 12V on the high side, using a NPN transistor 2NA: Zuofu 3, 2 15 No other pin will show that.

The 2N is an NPN transistor that can only switch one-third the current of the 2N but has otherwise similar characteristics.