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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Trznsistor 26 March Every transistor has a gain h FE associated with it, which can be used to amplify voltage or current. In actual circuit modifications might be required.
When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region. Zuofu trqnsistor, 2 15 No other pin will show that. Would you like to answer one of these unanswered questions instead?
There are many types of amplifier circuits that are possible with translstor but this is the most commonly used one because it is very good in amplifying low frequency voltage signals like audio signals. The maximum amount of current that could flow through the Collector pin is mA, hence we cannot connect loads that consume more than mA using this transistor.
All variations have a beta or current gain h fe of at least in optimal conditions. To make things simple I have shown a simplified circuit to make a transistor as switch. Transistor as Traneistor Another Common application of a Transistor is as amplifiers. It looks like a “diode”.
Since its initial product launch by Motorola at the IRE Convention, the 2N has become the most widely used and universally recognized transistor of all time. The resistor R1 is called the Base resistor and is very important to drive a transistor, it limits the datasheey current and failing to use one might damage the transistor permanently.
Normally this type of transistor will either be used as a switch or as an amplifier, both of which is discussed below. 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.
PN2222A Datasheet, Equivalent, Cross Reference Search
KSPA can allow collector current upto mA and also has power dissipation of mW which can be used to drive larger loads than compared with BC It is designed for low to medium currentlow datashfetmedium voltageand can operate at moderately high speeds. Views Read Edit View history. Complete Technical Details can be found at the 2NA datasheet given at the end of this page. The value for this resistor can be calculated using the formula.
Hence the 2N pin-out is sadly not standardized. Replacements for the 2N are commonly available now in the cheaper TO packaging, where it is known as the PN or P2N, which has similar specifications except for the lower maximum collector current.
I am trying to figure out what is going on here. 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.
ST Microelectronics – datasheet pdf
KSPA has a gain value of tothis value determines the amplification capacity of the transistor. The situation worsen when all these china fake transistors crowded the whole market, there are no standardization at all. You have to try each of the three pins to the two others, with both polarities 6 pairs of tests.
It is very similar to a mechanical switch but here we will control the switch using electric signals. I have used a base voltage of 5V and a value of 1K as current limiting resistor.
The base pin of the transistor has to be biased with a voltage; this voltage is provided by the potential divider network formed by the resistors R4 and R6. 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.
Thank you for your interest in this question. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA.