This post explains for the semiconductor 2N3904.
The Part Number is 2N3904.
The function of this semiconductor is NPN General Purpose Amplifier.
Manufacturers : Fairchild Semiconductor
Preview images :
2N3904 / MMBT3904 / PZT3904 — NPN General Purpose Amplifier 2N3904 / MMBT3904 / PZT3904 NPN General Purpose Amplifier Features • 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. October 2011 2N3904 EB C TO-92 MMBT3904 C SOT-23 Mark:1A E B PZT3904 C SOT-223 E C B Absolute Maximum Ratings* Ta = 25°C unless otherwise noted Symbol Parameter Value Units VCEO VCBO VEBO IC TJ, Tstg Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current – Continuous Operating and Storage Junction Temperature Range 40 60 6.0 200 -55 to +150 V V V mA °C * These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 150 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed o […]