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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Phototransistor L14F1

I suggest that you look at that because amongst other things it will show you how to connect the device up correctly. Lastly, I don’t allow my lack of phototransisttor to come in between me making my circuit. 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.

l144f1 Yes, my password is: Jan 13, 8. Jan 12, 4. The friendliest, high quality science and math community on the planet! 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.

Jan 13, 7. Jan 15, In another posting I also sent you a link to a data sheet for the L14F1. But then, which one? And never mind the time, my parents decided to buy the phototransistor later.

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Jan 12, pohtotransistor. Jan 14, Join Physics Forums Today! Last edited by a moderator: By the way, could you tell why the resistor is used in the circuit? Like the earlier one I posted, why couldn’t I just leave one pin left out hanging? Do you already have an account? Log ll14f1 or Sign up. Could you please post a diagram and fuller details of your application? Your name or email address: So again, I hope the diagram will be posted without further questioning.

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? 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 Phototransistkr in a way, they didn’t explain how they work, but phototrannsistor doing the soldering.

My father told the transistor may fry up at excess voltage, but is it right?

Everyone who loves science photitransistor here! If not, I don’t mind, a little bit of trial-and error can be done. Let us trash the safety issues as of now. You will see that the transistor base lead is not connected, as was suggested in one of my earlier posts.

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This was exactly why I asked a circuit diagram. Jan 12, 2. AdjusterJan 13, Jan 12, 3. Jan 13, 6. I believe it is the pin that juts out a little bit, which should be the phottotransistor pin I have marked my guess in the photo attached.

Phototransistor L14F1

Using a L14F1 IR phototransistor in a switch. Jan 12, 1. No, create an account now. Secondly, I don’t want to make more sensitive arrangements, for I can easily afford to point pototransistor laser pointer on the phototransistor, even if impractical. This would help against leakage effects and improve turn-off speed, at the expense of lowered sensitivity. I just suggested a remote control car with it, but I could rather make a simple wireless circuit switching a bulb off and on.

AdjusterJan 15, 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.

AdjusterJan 12, Jan 13, 9.