On that basis the 2n3904 is suitable for up to about 60mhz whilst the ss9018 will serve at over 200mhz. Information furnished is believed to be accurate and reliable. P2n2222a amplifier transistors npn silicon features these are pb. The 2n2222 transistor is subdivided into one group according to its dc current gain. Free devices maximum ratings ta 25c unless otherwise noted characteristic symbol value unit collector. The 2n3904 is an npn transistor that can only switch onethird the current of the 2n2222 but has. Free packages are available maximum ratings rating symbol value unit collector emitter voltage bc546 bc547 bc548 vceo 65 45 30 vdc collector base voltage bc546 bc547 bc548 vcbo 80 50 30 vdc emitter base voltage vebo 6. The only numbers that count are the 2nxxxx numbers they specify the part completely, the other numbers seem to be added in the schematic as a reference designation i cant be sure without seeing the diagram. The 2n3904 is a common npn bipolar junction transistor used for general purpose lowpower amplifying or switching applications. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. Philips npn switching transistors,alldatasheet, datasheet, datasheet search site for electronic. Free packages are available maximum ratings rating symbol value unit collector. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds.
You canuse it in several ways, boost your signal, overdrive your tube, etc i personally use this circuit at the end of an overdrive pedal for example to make a boost solo switch. I havent experimented with transistors in circuits yet as a beginner, but i know how they work. This part number is available in a multitude of different voltage ratings. However, stmicroelectronics assumes no responsib ility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. I do also wonder the same about other components, why 14 w instead of 1w or why 10v caps instead of 60v. So far, ive tried c1815, and 2n3904 pdf datasheets linked. The 2n3904 is an extremely popular npn transistor that is used as a simple electronic switch or amplifier that can handle 200 ma absolute maximum and frequencies as high as 100 mhz when used as an amplifier. The ultimate advantage of power mosfet over power bipolar transistor jun 02, 20 for my. Since the 2n3904 and the 2n2222 have the same maximum vceo voltage, theres no difference in regard to this aspect. For more information on this transistor, see the 2n3904 datasheet. Dec 11, 2017 the 2n2222a transistor is very much similar to the commonly used npn transistor bc547. If you are using for some basic laboratory experiment for experimental purpose then it is assumed that the voltages are not that high. The 2n3904 is an npn transistor that can only switch onethird the current of the 2n2222 but has otherwise similar characteristics. One most excellent reference is the pdf version of todd gales nowdefunct website.
I use 2n3904 because it was my first bjt and i have plenty of them. I am using these for logic gates for now just basic and, not, and am working on my own full adder. For the two transistors available in the lab, the nominal parameter values for these equations are. It can control only one third of the current of 2n2222. Philips customers using or selling these products for. The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower amplifying or switching applications. I have seen many circuits using the 2n2222 transistor correct me if it isnt one. The 2n3904 is also an npn transistor with same characteristics like 2n2222 but with one difference. It is designed for low current and power, medium voltage, and can operate at. The 2n2907 is a commonly available pnp bipolar junction transistor used for general purpose lowpower amplifying or switching applications. All about 2n2222 transistor and its circuit diagrams. Jameco part number 787536 2004 fairchild semiconductor corporation rev.
Unit vcbo collectorbase voltage open emitter 2n2222. Complete technical details can be found at the 2n3904 datasheet given at the end of this page. In one of my earlier posts we discussed regarding a few low signal type of transistors like bc547, bc557 etc. I have trouble understanding which transistor is more relevant to my application etc. Mar 04, 2018 the 2n2222 transistor is subdivided into one group according to its dc current gain. I havent see a programmer that build with 2n2222 all jdm types using bc547. However, with the c1815, the collector emitter connection is always open, regardless of how the. Motorola smallsignal transistors, fets and diodes device data.
Bc547 transistor pinout, equivalent, uses, features. The 2n3904 is an extremely popular npn transistor that is used as a simple electronic switch or amplifier that can handle 200 ma absolute maximum and frequencies as high as 100 mhz when used as an amplifier figure 1. Applications datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Texas instruments released a data sheet for their version of this part dated march 1973. Oct 06, 2018 2n2222, 2n3904, 2n4401, bc337 pin configuration of some transistors are different from bc547, check pin configuration before replacing in a circuit bc547 is a general purpose bjt npn transistor mostly used in electronics hobbyists and educational electronics projects.
It can be used for amplification of analog signals as well as switching applications. Bc546b, bc547a, b, c, bc548b, c amplifier transistors. Note that the 2n2222 2n2907 also pn2222 pn2907 transistors will safely handle 8 to 10 times as much current as the 2n3904 2n3906 transistors. Bc546b, bc547a, b, c, bc548b, c amplifier transistors npn silicon features pb.
Or a combination of the two your company is buying the 2n3904 in mass quantity for cheap and you would have to buy the 2n4401 in 100 quantity for 5x the price and it would be a new additional inventory item to keep track of. An illustration of the pin out of a standard to92 package for digikey part number 2n3904fsnd. The major functional area of 2n2222 is enclosed in to18 package. How they differ is that the 2n2222 can handle greater operating collector current. The 2n2222 is a common npn bipolar junction transistor bjt used for general purpose lowpower amplifying or switching applications.
The 2n3904 exhibits its forward gain beta peak at a lower current than the 2n2222, and is useful in amplifier applications with reduced i c, e. Npn general purpose amplifier continued typical characteristics continued storage time vs collector current 1 10 100 5 10 100 500. So i just wanted to know can the bc148 be used as a general substitute for 2n2222 or is it just the case in this. Our town is far away until i go there i have to bare with this 2n 2222. As compared with 2n2222 it shows forward gain at lower current. Difference between bjts and knowing which one to use. He gives a couple mods you can add to make it a treble booster. On special request, these transistors can be manufactured in different pin configurations. But there are two important features that distinguish both. Generally i find that the pn2222 is a slight improvement over 2n3904 but not enough to warrant stocking them in the lab here. Npn general purpose amplifier switch requiring collector currents up to 500ma.
The 2n3904 and the 2n2222 are 2 of the most popular npn bipolar junction transistors in the electronics market. It is designed for low to medium current, low power, medium voltage, and can. Q1, the 2n2222 or 2n3904, is a general purpost npn transistor. Apr 01, 2009 after comparing the spec sheets online and doing a little bit of googling, i found that pnp transistor 2n3906s characteristics and specs seem to fit pretty well with bc559 and bc548 fits fairly well with 2n3904 s. Discussion in homebrew and kit projects started by kd2ixs, nov 30, 2015. Figure 6 is an example night light circuit using a pnp transistor. In case youre curious about which to use, or which one is better or superior than the other, in this article, we compare and contrast the 2 transistors. If the 2n3904 was driving the relay ok, the bc337 should work fine with no other changes. I want to clarify whats the different between them. Besides these uses it can also be used in commercial circuits. The collector current is the amplified current that flows from the emitter terminal to the collector terminal to power on a load that may be connected to the transistor.
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