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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
How are C (OBO) and C (IBO) defined? - Electrical Engineering Stack . . . I'm thinking that in an ordinary grounded emitter setup, where one rather wants to know cbe and cbc, one could approximate it to Cbe = Cibo C b e = C i b o and Cbc = Cobo C b c = C o b o At least that's my reasoning for it to make any sense
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
Reason not to use aluminium wires, other than higher resistance So aluminium is 3 3 times lighter than copper (8 96 vs 2 70 g cm3) And its resistance is only 55% bigger So in weight resistance ratio it is actually better than copper Also it is cheaper Why
What is the collector-emitter resistance of NPN Transistor? It is not really the proper question to ask While a semiconductor does have resistance to the flow of current, so does a capacitor The way to start is to ask, what is the voltage drop across the transistor This is a value that is typically published for each component This way, when you know the particular operating conditions, you can easily calculate the voltage and appropriate
How do smaller capacitors filter out higher frequencies than larger . . . If the capacitors were ideal, there would be no way that smaller value capacitors could filter better at higher frequencies But every ceramic cap maintains a capacitor-like behavior up to some frequency Then the parasitic inductance starts to assert itself and ultimately, at high frequencies, dominate the impedance characteristic So basically capacitors turn into inductors at higher
How to find a fast optocoupler (or how to read the datasheet) The B-E resistor shunts some of that current, so the transistor stays off until Vbe is reached (hence, CTR drops precipitously below operating current), and turning it off faster (discharging Cbe)