The datasheet for all transistors list the beta hfe when the transistor has plenty of collector to emitter voltage so it is not saturated. It functions like a normal npn transistor, but since it has a darlington pair inside it has a good collector current. The bc337 is specifically rated at 50v and 800ma max. This little transistor can help in your project by being used to help drive large loads or amplifying or switching applications. The value of the current limiting resistor may be calculated by using the formula explained at the end of this article the transistor 2n2907 is complementary pair for 2n2222 and has identical specs as above, however being a pnp type the associated polarities are exactly opposite. I have use bc547 for a project water level indicator. The datasheet for your transistor lists the hfe when the collector to emitter voltage vce is 1v and 10v. The p2n2222 has a different order of pins than the metal case 2n2222, with its emitter and collector connections switched. The p2n2222a is specifically rated at 40v and 600ma max.
Amplifier transistors online from elcodis, view and download 2n222 pdf datasheet, programmable unijunction transistors puts specifications. Today, i am going to give you an introduction to 2n2222. This is the p2n2222a, an npn silicon bjt bipolar junction transistor. Testing an audio power amp with paralleled transistors. P2n2222a datasheet, equivalent, cross reference search. It shows that the hfe is half when the vce is only 1v. The two most important equations concerning transistor calculations in this circuit are. Motorola, alldatasheet, datasheet, datasheet search site for electronic components. Electronic component search and free download site. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads. How do i calculate the value of base resistor will i need for the transistor.
The 2n2222a is a silicon npn transistor with 50v collector emitter voltage and 800ma continuous collector current. The transistor allows you to control a circuit thats carrying higher current and voltage from the microcontroller. I thought this may have been due to a faulty transistor, but all of the 2n2222331 transistors i have do the same thing bought from 2 different sources. Electrically similar transistors in a to92 package. Here is an image showing the pin diagram of the this transistor. P2n2222a d p2n2222a amplifier transistors npn silicon features these are pb. Semiconductor components industries, llc, 2007 april, 2007 rev. Npn 2n2222 transistor component as switch circuit with schematic tutorial. The silicon npn transistor is designed for use with small signal general purpose amplifier and switch.
You can replace the 2n2222a with the 2n2221a or nte123a. Amplifier transistors npn silicon maximum ratings rating symbol value unit collectoremitter voltage vceo 40 vdc collectorbase voltage vcbo 75 vdc emitterbase voltage vebo 6. Using a transistor to control high current loads with an. The transistor we are using for this tutorial is p2n2222a and is rated at 40v and 200ma, it just perfect for one toy dc motor. Npn silicon switching transistor qualified per milprf19500255 devices levels 2n2221a 2n2222a jan 2n2221al 2n2222al jantx 2n2221aua 2n2222aua jantxv 2n2221aub 2n2222aub jans 2n2221aubc 2n2222aubc. Emitter saturation voltage vcesat ic 150ma, ib 15ma.
Igbt k30n60 datasheet, cross reference, circuit and application notes in pdf format. The 2n2222a from stmicroelectronics is a through hole npn silicon planar epitaxial transistor in to18 package. Replacement and equivalent transistor for the 2n2222a. I am trying to replicate this, and i noticed that when i used a transistor labelled 2n2222331 instead of the p2n2222a, the relay would switch on even if the base pin was not connected. General purpose transistors npn silicon maximum ratings rating symbol value unit collectoremitter voltage pn2222 pn2222a vceo 30 40 vdc collectorbase voltage pn2222 pn2222a vcbo 60 75 vdc emitterbase voltage pn2222 pn2222a vebo 5. Amplifier transistors, 2n2222 pdf view download on semiconductor, 2n2222 1 page datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits electronic component search and free download site. Mosvi 2sk switching regulator applications low drainsource on resistance. If your motor needs more current than 200ma you can just buy another transistor ask the staff in the electronics store. Onsemi, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Npn switching transistor, itt2222a pdf download nxp semiconductors.
P2n2222a pdf, p2n2222a description, p2n2222a datasheets. Ta 25 c unless otherwise specified parameter symbol test conditions min typ max unit on characteristics note 1 dc current gain hfe vce 10v ic 0. The npn bipolar transistor is designed for use in linear and switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. The central semiconductor 2n2221a and 2n2222a are silicon npn epitaxial planar transistors designed for small signal, general purpose switching applications. For additional information on our pbfree strategy and soldering details, please. P2n2222a datasheet16 pages motorola amplifier transistors. It was originally made in the to18 metal can as shown in the picture the 2n2222 is considered a very common transistor, and is used as an. The led supply is 5v as is the base voltage from an arduino digital pin.
Transistors have limits and maximum specs, just be sure those values are enough for your use. P2n2222a d p2n2222a electrical characteristics ta 25, mhz pf pf k x 10 4 mmhos ps db p2n2222a electrical. P2n2222a bipolar bjt transistor npn 40v 600ma 300mhz 625mw through hole to923 from on semiconductor. It is the most commonly used negativepositivenegative npn bipolar junction transistor bjt available in the market now a days. Even the mccormack amps sounds forward but has a similiar tube like quality. Technical data sheet 6 lake street, lawrence, ma 01841 18004461158 978 6202600 fax. Amplifier transistors, p2n2222a datasheet, p2n2222a circuit, p2n2222a data sheet. The device is housed in the to92 package, which is designed for medium power applications.
P2n2222a datasheet, p2n2222a datasheets, p2n2222a pdf, p2n2222a circuit. Amplifier transistors p2n2222a npn silicon datasheet. Buy transistor pn2222a npn ic in dubai, abu dhabi, sharjah or anywhere in the uae at edwin robotics. The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose. P2n2222a npn transistor complementary pnp, replacement. P2n2222a d p2n2222a amplifier transistors npn silicon features pb. Top 5 electronics projects using 2n2222 transistor youtube. Typically suitable for high speed switching application. The base goes to the source voltage or the triggering voltage via a current limiting resistor. I used a tdam amplifier and the schematic shown in its datasheet. Onsemi amplifier transistors npn silicon,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The p2n2222a is manufactured in a plastic to92 case. Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. How to drive a dc motor with transistor arduino tutorial.
The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose lowpower amplifying or switching applications. Amplifier transistors npn silicon, p2n2222a datasheet, p2n2222a circuit, p2n2222a data sheet. Typical parameters which may be provided in scillc data sheets andor specifications can and do vary in different. Pricing and availability on millions of electronic components from digikey electronics. Amplifier transistors, 2n2222 pdf view download on semiconductor, 2n2222 2 page datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. What is the difference between bc547 and 2n2222a transistor.
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