3904 transistor equivalent pdf

Im looking for a smt npn transistor about the equivalent of the 2n3904, say in a sot23 package or similar. 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. Output impedance is also a factor since watts amps squared x ohms. Posted on september 2, 2018 september 6, 2019 by pinout. This transistor is also available in a throughthehole to92 bulk, and ammopack versions. 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 2n3904s. 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. Click on an alternate part number to view part details, or select up to 4 parts to compare sidebyside. How to make music reactive light at home using 3904 transistor how to make music reactive light at home using 3904 transistor,in this video i will tell you how can you make music reactive light easily at home by using 3904 lecture on npn 2n3904 and pnp 2n3906 transistor controlled electronics flashing led. The 2n3904 is a small signal generalpurpose npn transistor. Normally im a software guy, but i am trying to create a really cheap design for my dads model train club. Emitter saturation voltage vbesat ic 10ma, ib 1ma 0. By putting two discrete devices in one package, this device is ideal for low.

Recent listings manufacturer directory get instant insight into. Replacement and equivalent transistor for the 2n3904. Free packages are available maximum ratings rating symbol value unit collector. Pricing and availability on millions of electronic components from digikey electronics.

Transistors the mbt3904dw1 and mbt3904dw2 devices are a spin. 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. Philips npn switching transistor,alldatasheet, datasheet, datasheet search site for electronic. Onsemi general purpose transistors npn silicon,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Transistor npn smd general purpose transistor npn features npn silicon epitaxial planar transistor for switching and amplifier applications rohs compliance. Transistors operate at low voltage so must pass high current to satisfy the equation watts volts x amps.

Npn silicon transistor descriptions general small signal application switching application features low collector saturation voltage collector output capacitance complementary pair with 2n3906 ordering information type no. The 2n3904 is common generalpurpose lowpower npn transistor used amplifying or switching applications. Preferred devices are recommended choices for future use. Storage and fall time equivalent test circuit figure 1.

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. The original in a to92 package looks to go for under 10c in 1k volumes, which would be rather nice. It is designed for general purpose amplifier applications and is housed in the sot. Npn switching transistor, mmbt3904 pdf bilin, mmbt3904 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. The 2n3904 and the 2n2222 are 2 of the most popular npn bipolar junction transistors in the electronics market. Buy transistor 2n3904 npn general purpose bulk jameco will remove tariff surcharges for online orders on instock items learn more. Npn transistor 3904 datasheet pdf, npn transistor 3904. The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower amplifying or switching applications. It is typically used for lowcurrent, medium voltage, and moderate speed purposes.

It is one of the lowestcost general purpose transistors currently available on the market, and compares well with the bc range of npn transistors. Posted on october 30, 2018 september 7, 2019 by pinout. Here is a link that shows various package sizes for 3904 transistors. Mmbt3904 npn switching transistor dbook, halfpage m3d088. Transistor 2n3904 bipolar bjt npn general purpose pack. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. 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. My problem is i couldnt find the two transistors, npn bc548 and pnp bc559 at any of my nearby radio shacks. I use these for my joule thief project that i found on youtube while searching how to save energy. Bt3904 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. A smallsignal amplifier with a 12v dc supply and puttingout a few milliwatts might operate with 10ma or so of ic collector current. Here is an image showing the pin diagram of the this transistor. Equivalent test circuit total shunt capacitance of test jig and connectors.