Tny278gn datasheet 2n3904

Since the 2N3904 is an NPN transistor, that means the base needs positive biasing (appropriate voltage levels and resistance) to turn on the collector emitter junction for proper current flow. Use of a load resistor (R1 above) is also important so there is not too much current being driven through the LED and transistor.

Power Integrations 5245 Hellyer Avenue San Jose, CA 95138 U.S.A. (408) 414-9200 Product Change Notification CONFIDENTIAL: The information in this report contains confidential and proprietary information of Power Integrations and 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 ...

1996. 1. 28 1/3 semiconductor technical data kn3904 epitaxial planar npn transistor revision no : 0 general purpose application. switching application. 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 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 ... TNY278GN: Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range: Power Integrations, Inc... TNY278G: Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range: TNY278GN-TL: Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range: TNY278GN-TL: Energy-Efficient, Off-Line Switcher With Enhanced Peak Power Performance

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