The 2N3904 is a common NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. The 2N3904 is a common NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a ... At 20mA, that's about 120 Ohms. The current gain depends on the collector current, but figure on 50. With a base current of 20mA, that's a collector current of way more than the 2N3904 can handle, so 20mA will saturate it thoroughly. You can probably get by with a lower base current. Look at a 2N3904 datasheet for gain at different collector ... Schematic of very Simple preamplifiers using 2N3904. In electronics, a common emitter amplifier is used as a voltage amplifier. In this circuit the base terminal of the transistor serves as the input, the collector is the output, and the emitter is common.
Jun 10, 2017 · Introduction to 2N3904. 2N3904 is a silicon NPN Bipolar Junction Transistor (BJT). It is designed for switching purposes at 100mA and as an amplifier at 100MHz frequency. Its main functioning area is enclosed in TO-92. It has a wide range of applications.
The 2N3904 comes in a TO-92 case with leads in the order C,B,E. Some equivalent transistors have the opposite pinout (E,B,C) and some are B,C,E. This won't be a problem so long as you are aware of the difference, and refer to the datasheet of the part you are using when wiring up the circuit. 2n3904 small signal npn transistor . silicon epitaxial planar npn transistor to-92 package suitable for through-hole pcb assembly the pnp complementary type 2n3906 to-92 bulk to-92 ammopack. applications s well suitable for tv and home appliance equipment s small load switch
The maximum rating for the 2N3904 is 625mW, so no surprise that the transistor gets hot fast. 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. 2n3904 small signal npn transistor . silicon epitaxial planar npn transistor to-92 package suitable for through-hole pcb assembly the pnp complementary type 2n3906 to-92 bulk to-92 ammopack. applications s well suitable for tv and home appliance equipment s small load switch Read the datasheet. Input and output voltage are only guaranteed to within 3V of the supplies and minimum supply voltage is spec'ed at 10V. It will likely operate at a lower supply voltage and, if you're lucky, you'll be able to find a unit that gives better than typical voltage swings. 2N3705 Bipolar Transistors Page 3 09/05/08 V1.1 Specifications VCEO (V) VCBO Maximum (V) IC (mA) hFE Minimum at IC = 50mA fT Minimum (MHz) Ptot (mW) Pakage Part Number 30 50 0.8 50 100 625 TO-92 2N3705
2N3904 Signal Transistor. Catalog №: 2762016. $2.00 Sold-out Online. Request notification Find a store. Tweet. Maximum Power Dissipation: 350 mW. Maximum Collector ...
Features, Applications: NPN silicon planar switching transistors. Fast switching devices exhibiting short turn-off and low saturation voltage characteristics. 2N3904 datasheet, 2N3904 pdf, 2N3904 data sheet, datasheet, data sheet, pdf
2N3904 General Purpose Transistors NPN TO-92 Page 1 31/05/05 V1.0 High Speed Switching Features: • NPN Silicon Planar Switching Transistors. • Fast switching devices exhibiting short turn-off and low saturation voltage characteristics. 2N3904 MMBT390 4 MMPQ390 4 PZT3904 NPN General Purpose Amplifier This device is designed as a general purpose amplif ier and switch. The useful dynamic range extends to 100 mA as a swi tch and to 100 MHz as an amplifier. Sourced from Process 23. Absolute Maximum Ratings* TA = 25°C unless otherwise noted Full text of "IC Datasheet: 2N3904" See other formats MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by 2N3903/D General Purpose Transistors NPN Silicon COLLECTOR 3 BASE EMITTER MAXIMUM RATINGS Rating Symbol Value Unit Collector- Emitter Voltage v CEO 40 Vdc Collector-Base Voltage VCBO 60 Vdc Emitter-Base Voltage VEBO 6.0 Vdc Collector Current — Continuous ic 200 mAdc Total Device ...