2N3904 Datasheet, 2N3904 PDF, 2N3904 Data sheet, 2N3904 manual, 2N3904 pdf, 2N3904, datenblatt, Electronics 2N3904, alldatasheet, free, datasheet, Datasheets, data ... Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. 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.

Dec 23, 2008 · Now you understand there are tremendous different result between the 2N3904 transistor datasheet and my test circuit, this is because the 2N3904 datasheet is measured using the PWM (Pulse Width Modulation) with period for about 300 us (micro second) and duty cycle for about 2%, the reason to use this very short pulse period method in the ...