L14F1 datasheet, L14F1 pdf, L14F1 data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, HERMETIC SILICON PHOTODARLINGTON. L14F1 datasheet, L14F1 circuit, L14F1 data sheet: FAIRCHILD – HERMETIC SILICON PHOTODARLINGTON,alldatasheet, datasheet, Datasheet search site for. Part Number: L14F1, Maunfacturer: Motorola, Part Family: L1, File type: PDF, Document: Datasheet – semiconductor.

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Working of the circuit is simple. AdjusterJan 12, By viviternDecember 6, in Infrared IR. Jan 13, 6.

Do you already have an account? So again, I hope the diagram will be posted without further questioning. Jan 12, 2.

L14F1 NTE Equivalent NTE PHOTOTRASISTOR/DETEC – Wholesale Electronics

Register a new account. Share this post Link to post Share on other sites. The window output remains low. Already have an account? Everyone who loves science is here! I would guess that by 3-pin you mean datashewt device which has the base connection brought to an outside pin, since LIF41 is a photo-darlington which has the input base brought out?

Using a L14F1 IR phototransistor in a switch | Physics Forums

But then, which one? The working range of the circuit depends on the orientation and the intensity of the IR beam.


Could you please post a diagram and fuller details of your application? The equivalent photo-voltage appears across resistor R4. But, where would someone use it? Sign In Sign Up. Which specific appliances daatasheet benefit from IR control? You need to be a member in datasheeh to leave a comment. The output of IC4 is fed to the base of relay-driver transistor T5. Let us trash the safety issues as of now. 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.

Using a L14F1 IR phototransistor in a switch

Since the receiver is controlling a line powered device, why would it be battery powered? Your name or email address: Assemble both the circuits on separate PCBs and house in suitable cabinets.

When switch S1 is pressed momentarily, the IR beam falls on the photo-transistor for this short period of time and a postive-going pulse appears at dataseet input of l1f41 window comparator.

This was exactly why I asked a circuit diagram. I suggest that you look at that because amongst other things it will show you how to connect the device up correctly.


It consists of phototransistor L14F1 T1 datasheet: Jan 15, Similarly, in the receiver unit, fix the photo-transistor L14F on the rear side such that the IR beam falls on it. The circuit operates off a 9V battery, which is connected to the circuit through switch S1.

Jan 13, 9.

(PDF) L14F1 Datasheet download

A power supply would be much more convenient, no datasyeet to change. Keep the 9V battery inside the cabinet.

L1f41 remote control for home appliances: Join Physics Forums Today! If the input voltage is less than or equal to 2V, or more dtaasheet or equal to 4V, the output goes low. The Darlington pair built around transistors T2 and T3 amplifies the photo-current generated by the photo-transistor T1.

AdjusterJan 13, Initially, when no IR beam is falling on sensor photo-transistor T1, the DC voltage appearing at the input of the window comparator is nearly zero. The circuit operates off a 9V battery, which can be connected to the circuit through switch S2.

Sign in Already have an account? Jan 12, 1. Jan 13, 8.