L14G2/G3 is an NPN phototransistor. It acts as a photodetector in the sense that it can convert the incident light into electric response. They are commonly used. L14G2 is an NPN photo-transistor. It acts as a photo-detector in the sense that it can convert the incident light into electric response. They are commonly used as . Buy L14F1 with extended same day shipping times. View datasheets, stock and pricing, or find other Phototransistor.

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No, create an account now. My first guess would be that the base could be left open, but depending on the application it may be better to connect a resistor from the base to the emitter. So again, I hope the diagram will be posted without further questioning.

Using a L14F1 IR phototransistor in a switch

Jan 12, 1. Jan 13, 9. Join Physics Forums Pototransistor You will see that the transistor base lead is not connected, as was suggested in one of my earlier posts. Secondly, Phototransidtor don’t want to make more sensitive arrangements, for I can easily afford to point the laser pointer on the phototransistor, even if impractical. As a final help, in the picture of the phototransistor product I have attached, please look at it and re-post it to me if you can identify the base pin.

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Do you already have an account? AdjusterJan 13, Jan 12, 5. Everyone who loves science is here!

I would guess that by 3-pin you mean a device which has the base connection brought to an outside pin, since LIF41 is a photo-darlington which has the input base brought out? Last edited by a moderator: Jan 13, phototransistpr.

Hello univeruser Since you have said that you don’t want to make any more sensitive arrangements, here is a simple diagram adapted from what you originally uploaded, showing the photodarlington transistor driving a LED – in this case, the ohm resistor is needed.

Lastly, I don’t allow my lack of skils to come in between me making my circuit. I believe soldering shouldn’t be much of a safety concern as I have used them before and have gone for a robotics class wherein we had to solder the parts provided onto the provided PCBs in a way, they didn’t explain how they work, but just doing the soldering.

I suggest that you look at that because amongst other things it will show you how to connect the device up correctly. Jan 13, 8. Yes, my password is: Jan 15, Jan 12, 3. If not, I don’t mind, a little bit of trial-and error can be done.

This would help against leakage effects and improve turn-off speed, at the expense of lowered sensitivity. This was exactly why I asked a circuit diagram.

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And never mind the time, my parents decided to buy the phototransistor later. Jan 14, By the way, could you tell why the resistor is used in the circuit? Jan 12, 4.

L14F1 Phototransistor

AdjusterJan 12, Log in or Sign up. Your name or email address: Let us trash the safety issues as of now. I believe it is the pin that juts out a little bit, which should be the base pin I have marked photptransistor guess in the photo attached.

Could you please post a diagram and fuller details of phototarnsistor application? Jan 12, 2. In another posting I also sent you a link to a data sheet for the L14F1. My father told the transistor may fry up at excess voltage, but is it right?

I just suggested a remote control car with it, but I could rather make a simple wireless circuit switching a bulb off and on. Jan 13, 7. Using a L14F1 IR phototransistor in a switch.

L14F1 Phototransistor

Like the earlier one I posted, why couldn’t I just leave one pin left out hanging? But then, which one? The friendliest, high quality science and math community l14t1 the planet! AdjusterJan 15,