NPN Transistor 2N3904. View larger. Tweet Share Google+ Pinterest . Print ; Reference: ... 2N3904 Datasheet; No customer reviews for the moment. * * * 30 other ...
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.
2N3903, 2N3904 2N3903 is a Preferred Device General Purpose Transistors NPN Silicon Features •Pb−Free Packages are Available* MAXIMUM RATINGS Rating Symbol Value Unit Collector−Emitter Voltage VCEO 40 Vdc Collector−Base Voltage VCBO 60 Vdc Emitter−Base Voltage VEBO 6.0 Vdc Collector Current − Continuous IC 200 mAdc Total Device ... 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. 2n3904s revision no : 4 c 0 collector current i (ma) collector current i (ma) 0 c 0 base-emitter voltage v (v)be i - vc be 10 dc current gain h fe 0.1 0.3 1 3 collector current i (ma)c 0 collector-emitter voltage v (v)ce i - vc ce h - i collector current i (ma)c collector-emitter saturation ce(sat) v - i
Although this works fine, I'm a bit concerned about what I've read on the data sheet for the 2N3904. It states that the Base-Emitter Saturation Voltage has the following specs: Ic = 10mA Ib = 1.0mA Ic = 50mA Ib = 5.0mA. I'm having a hard time understanding what that means exactly. 2N3904 Datasheet : SMALL SIGNAL NPN TRANSISTOR, 2N3904 PDF VIEW Download STMicroelectronics, 2N3904 2 page Datasheet PDF, Pinouts, Data Sheet, Equivalent, Schematic, Cross reference, Obsolete, Circuits 2N3904 MMBT3904 PZT3904 C C E E C C TO-92 B B SOT-23 B E SOT-223 Mark: 1A NPN General Purpose Amplifier This device is designed as a general purpose amplifier and switch. The useful dynamic range extends to 100 mA as a switch and to 100 MHz as an amplifier. 2N3904 fT 250 300 − − MHz Output Capacitance (VCB = 5.0 Vdc, IE = 0, f = 1.0 MHz) Cobo − 4.0 pF Input Capacitance (VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz) Cibo − 8.0 pF Input Impedance (IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) 2N3903 2N3904 hie 1.0 1.0 8.0 10 k Voltage Feedback Ratio (IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) 2N3903 2N3904 hre 0.1 0.5 5.0 8.0 X 10−4 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.