For example, very weak radio signals in the air can be picked up by a wire antenna and processed by transistor amplifiers until they are strong enough to be. An illustration of the pin out of a standard to92 package for digikey part number 2n3904fsnd. Directly to the oscillator an antenna is connected. New product new product new product 2n3904 datasheet catalog. Free packages are available maximum ratings rating symbol value unit collector. The maximum rating for the 2n3904 is 625mw, so no surprise that the transistor gets hot fast. The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower. The product status of devices described in this document may have changed since this document was published and may differ in case of multiple devices. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Npn silicon epitaxial planar transistor forswitching and amplifier applications as complementary type, the pnp transistor2n3906 is recommended on special request, this transistor is alsomanufactured in the pin configurationto18. Its pin configuration diagram is shown here according to datasheet. Here i measure the collectoremitter junction voltage when the transistor is turned on. Due to the large amplitude of rf voltage is sufficient antenna length of about 510 cm. Complete technical details can be found at the bc337 datasheet given at the end of this page.
Ive been saving my used batteries in a box for recycle and now im taking it out and use the remaining voltage to light a 10mm led as my night light in my room,livingroom,kitchen,hallways and lights in the bathroom so my kids dont have to turn on the light at night when they do no. Nxp semiconductors product data sheet npn switching transistor pmst3904 data sheet status notes 1. Bipolar junction transistor bjt switch circuits use a low powercurrent signal to control whether a higher power load is turned on or off. This device is designed as a general purpose amplifier and switch. Absolute maximum ratings t a 25c unless otherwise noted. Symbol parameter conditions value unit rthja thermal resistance from junction to ambient note 1 250 kw symbol parameter conditions min. Philips, alldatasheet, datasheet, datasheet search site for electronic components and.
Auk corp catalog first page, datasheet, datasheet search, data sheet, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, semiconductors. On that basis the 2n3904 is suitable for up to about 60mhz whilst the ss9018 will serve at over 200mhz. The complementary npn transistor to the 2n3906 is the 2n3904. Class a single transistor amplifier with 2n3904 electrical. General purpose transistorsnpn silicon, 2n3904 datasheet, 2n3904 circuit, 2n3904 data sheet. The product status of the devices described in this data sheet may have changed since this data sheet was published. Npn switching transistor 2n3904 data sheet status notes 1. That is, a weak input signal can be amplified made stronger by a transistor. This shopping feature will continue to load items when the enter key is pressed. This transistor is also available in the sot23 case.
It is typically used for lowcurrent, medium voltage, and moderate speed purposes. Consider the 2n3904 driven with 10 ma and controlling a 100 ma load. I used insulated 7cm long copper wire 1mm diameter. Fast switching devices exhibiting short turnoff and low saturation voltage characteristics. The useful dynamic range extends to 100 ma as a switch and to 100 mhz as an amplifier. Eprojects 2n3904 general purpose transistor npn to. Please consult the most recently issued data sheet before initiating or completing a design. It consists of a simple oscillator with silicon planar rf pnp transistor. Apr 11, 2009 im having trouble figuring out what resistor i should use on base when wiring up a npn transistor.
I use these for my joule thief project that i found on youtube while searching how to save energy. This 2n2222 npn transistor has three pins emitter, base, and collector. Base recommended this transistor is also available in the sot23 case with. Npn silicon epitaxial planar transistor for switching and amplifier applications. The 2n3904 npn and 2n3906 pnp are complementary transistor pairs. The maximum current a 3904 can handle is 100ma, so is it okay too choose a resistor for a 100ma current so anything i hook up will work as long as it takes less. This simple transmitter allows you to broadcast on fm radio band 87. Description small signal characteristic transistors frequency output capacitance input capacitance small signal current gain input impedance output admittance voltage feedback ratio noise figure switching time delay time rise time storage time fall time ts tf vcc 3v, vbe 1ma vcc 2n3904 datasheet, 2n3904 pdf, 2n3904 data sheet, 2n3904 manual, 2n3904 pdf, 2n3904, datenblatt, electronics 2n3904, alldatasheet, free, datasheet, datasheets, data. Ss9015 pnp epitaxial silicon transistor filipeflop.
Hilitchi 675piece 15 values 2n2222s9018 npn pnp power general purpose transistors assortment kit. Really nice to have a kit you can pull down from a shelf knowing youll find what you need. If you drop a tip41c into the circuit you should still be able to measure a signal at the amplifier output, but it will probably a lot lower because the current gain of the tip41c is a magnitude lower compared to the 2n3904. According to 2n3904 datasheet this transistor is a silicon epitaxial planar npn general purpose amplifier and switch. Npn switching transistor 2n3904 thermal characteristics note 1. On special request, this transistor is also manufactured in the pin configuration to18. It is a blog created to share various information with you in more complete and detailed contents. Use of a load resistor r1 above is also important so there is not too much current being driven through the led and transistor. Transistor 2n3904 bipolar bjt npn general purpose pack of. The factory should be consulted on applications involving pulsed or low duty cycle operations. On special request, this transistor is also manufactured in the pin configuration. Bipolar transistor pack with 2n3904 2n3906 s8050 2n2907 s8550 2n2222. Pricing and availability on millions of electronic components from digikey electronics. These pins are used in the circuit for turning on or off the transistor.
Since the 2n3904 is an npn transistor, that means the base needs positive biasing appropriate voltage levels and resistance to turn on the collector emitter junction for proper current flow. Mcigicm transistor kit, bc337 bc327 2n2222 2n2907 2n3904 2n3906 s8050 s8550 a1015 c1815 assortment, 10 values, 200pcs. Im trying to update as much information as possible, even if i can not find perfect information. Npn transistor 2n3904 pinout electronics projects, electronics. The transistor npn important 2n3904 specifications from the. Both types were registered by motorola semiconductor in the mid1960s. Npn switching transistor pmst3904 limiting values in accordance with the absolute maximum rating system iec 604. Hilitchi 675piece 15 values 2n2222s9018 npn pnp power. Compare pricing for nte electronics 2n3904 across 7 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. These will not dissipate 1500 watts, but these are only 1.
The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower amplifying or switching applications. Introduction a transistor is a small electronic device that can cause changes in a large electrical output signal by small changes in a small input signal. These transistors are available in package styles to92, sot23, sot223 with different prefixes. Npn bjt switch circuit bipolar junction transistor 2n3904. Applications datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. As you can see, the volt drop incurred collector to emitter is about 0. Ordering information collector 3 2 base 1 emitter 2n 390x yww x 3 or 4 y year ww work week pb. Emitter amplifier applications as complementary type, the npn transistor 2n3904 is 2. 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. Unfollow 2n3904 npn transistor to stop getting updates on your ebay feed.
It is designed for low current and power, medium voltage, and can operate at moderately high speeds. The bc337 is an npn transistor commonly used in low power amplifier. Discrete semiconductors data sheet book, halfpage m3d186 2n5401 pnp highvoltage transistor 1999 apr 08 product specification supersedes data of 1997 may 22 philips semiconductors product specification pnp highvoltage transistor 2n5401 features pinning low current max. On semiconductor 2n3904 series npn bipolar transistors bjt. Bjt transistors assortment kit set of 210 pnp and npn assorted. The transistor npn a current amplifier makes small currents bigger the 2n3904 transistor. On semiconductor 2n3904 series npn bipolar transistors bjt are available at mouser electronics. Npn general purpose amplifier this device is designed as a general purpose amplifier and switch. Please consult the most recently issued document before initiating or completing a design. Continental device india limited an isots 16949, iso 9001 and iso 14001 certified company pnp silicon planar switching transistors 2n2904 2n2905 to39 metal can package general purpose transistor absolute maximum ratings description symbol value unit vceo collector emitter voltage 40 v vcbo collector base voltage 60 v vebo emitter base voltage. Npn switching transistor, 2n3904 datasheet, 2n3904 circuit, 2n3904 data sheet. Transistor 2n3904 bipolar bjt npn general purpose pack. As complementary type, the pnp transistor 2n3906 is recommended. The 2n3904 is common generalpurpose lowpower npn transistor used amplifying or switching applications.
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