2N3906 General Purpose Transistors PNP Silicon Features • Pb−Free Packages are Available* MAXIMUM RATINGS Rating Symbol Value Unit Collector − Emitter Voltage VCEO 40 Vdc Collector − Base Voltage VCBO 40 Vdc Emitter − Base Voltage VEBO 5.0 Vdc Collector Current − Continuous IC 200 mAdc Total Device Dissipation @ TA = 25°C Derate ... TRANSISTOR, 2N3904, NPN GENERAL PURPOSE, SMALL SIGNAL, 40V, TO-92 For more about Transistors, click here. Report a problem Suggest a product Nov 23, 2017 · Brief Description on 2N3904: 2N3904 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) when a signal is provided to base pin. 2N3904 has a gain value of 300; this value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector pin is 200mA, hence we cannot connect loads that consume more than 200mA using this transistor. small signal pnp transistor preliminary data silicon epitaxial planar npn transistor to-92 package suitable for through-hole pcb assembly the npn complementary type is 2n3904 applications well suitable for tv and home appliance equipment small load switch transistor with (Datasheet is here) To experiment, you’ll need to find yourself a PS/2 socket and solder wires for ground, Vcc (+5 volts) and the Tx line. If you want to talk back to the GPS unit then add another for Rx … but for my experiments, I just wanted to read what comes out of it. The 2SC828 is an old Japanese transistor. Any low voltage low current transistor will probably work fine like a 2N3904 or a 2N2222.