What can be replace the L14F1 and LD271 ?

[spyerpeacer]

what can be replace the L14F1 and LD271...?

hai...
i would like to know what can be replace the L14F1 and LD271 in this circuit...?
http://electroschematics.com/6161/power-switch-with-infrared-proximity-sensor/"
ive difficulties to find my component in my country...
so i want to know other alternatives for the component...
thanx for ur help...!

 

[schip666!]

You should be able to use just about any LED and photo-diode/transistor in that circuit. See what you can find in the junk box...

 

[vk6kro]

The LED from a discarded TV remote control may be OK and could be salvaged for use in projects like this.

The photo transistor will depend on what is available at your local electronics store. If you use an infra red transmitting diode, you need to use an infra red receiving photo transistor.

The exact type probably doesn't matter much.

 

[spyerpeacer]

schip666!-thanx...

vk6kro- for the solid state relay(S201S02), can i replace it with other relay...?
i also can't find the component in my area...

 

[vk6kro]

schip666!-thanx...

vk6kro- for the solid state relay(S201S02), can i replace it with other relay...?
i also can't find the component in my area...

Yes. A solid state relay is mainly used for very long term reliability. For normal use, an ordinary relay is fine.

Just for safety, if you are switching mains voltage, get a relay that has a protective cover on it.

Also, you will need to drive the relay differently. You will probably need a transistor to drive it and a diode across the relay to protect the transistor.
like this:

You will have to arrange the relay contacts to suit your application as this circuit will turn the transistor off when the reflected signal is detected.

 

[spyerpeacer]

in the diagram u show me, i not quite understand it...
do the DATA in the diagram comes from my pin no 8 in the circuit...?
does it means like that...?

if i use solenoid valve 24VDC at the output of relay,
do i need another supply to connect to the solenoid valve...?

 

[vk6kro]

in the diagram u show me, i not quite understand it...
do the DATA in the diagram comes from my pin no 8 in the circuit...?
does it means like that...?

YES

if i use solenoid valve 24VDC at the output of relay,
do i need another supply to connect to the solenoid valve...?

YES

...

 

[spyerpeacer]

thanx a lot for ur help...
i will try it...
i really appreciate it...