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- How do I know if which leg is the emitter or the collector? (Transistor . . .
Off the cuff - for jellybean transistors I almost invariably use BC337 (NPN) and BC327 (PNP) - both CBE A transistor selector book woul;d be the easy way to check distributions as they have pinout tables which they assign a letter code to and then show the relevant code for each device
- Same transistor type, swapped emitter and collectors? Normal?
But there are two different pinouts for the P2N2222A (a CBE pinout) and the PN2222 (EBC pinout ) So at least given my BC547 ignorance it seems at least possible in concept that other devices may have varying pinouts as I already know one example where it happens
- BJT high frequency analysis - Electrical Engineering Stack Exchange
From what I remember, the Cbe depends on the emitter current Higher current causes lower reac (1 gm); at 1mA, its 26 ohms at 2mA its 13 ohms 2mA is 4 volts 2Kohm (ignoring the emitter bypass cap) Thus your circuit has an incremental emitter-base small-signal resistance of about 13 ohms If the 2N2222 has 160MHz Ftau, the emitter-base needs 1nanosecond time-constant, or 1,000 picoSeconds
- Radio transmitter using a crystal oscilliator
I am on a mission to control my RC car using a Arduino The simplest way I thought of doing this is to add Arduino outputs into the transmitter Long story short I wanted to learn more about how th
- Simple circuit works with BC547, but not with 2N3904
19 The transistors can be used interchangeably and exchanged, yes, but they don't have the same pinout BC547 has CBE and 2N3904 has EBC
- Wrong footprints in KiCad - Electrical Engineering Stack Exchange
I am designing an audio amplifier and I realized that the footprints that came with KiCad are wrong I connected the transistor Q9 like this: But in the CvPCB, the transistor appeared like this: As
- Finding the Base-Emitter Voltage in an NPN Transistor
Start by solving for the base current, treating the BE junction as a diode in series with Rb The collector current doesn't really effect the base current Then use beta to get the collector current and calculate Vout If your calculated Vout is less than Vce (sat), then you must be in saturation mode, so you know Vout is Vce (sat), and Ic = (Vcc-Vce (sat)) Rc
- CBE Schematic and Wiring - Electrical Engineering Stack Exchange
I'm in the process of installing a circuit breaker between a power supply and an HMI device, but have some uncertainty when it comes to illuminating the rocker switch The part number is TA35-C2F3F
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