Connect with us

SPST LED Rocker Switch Wiring

Discussion in 'General Electronics Discussion' started by Haelind, Aug 13, 2019.

  1. Haelind

    Haelind

    9
    1
    Jun 27, 2019
    Hello,

    Need a little help with wiring this switch. I understand a 3 pin LED but this is a 4 pin. Looked for a wiring diagram but no luck only found a data sheet with dimensions and terminations. The power source will be 12v 10amp adapter.

    Thank you kindly,
    Haelind
    led-switch.jpg
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,137
    1,846
    Nov 17, 2011
    Probably 2 pins (thin) for the light, 2 pins (fat) for power.
    What is the part number?
    Your photos 3 and 4 are hard to read - too much reflection. Try again, please, with good lighting, no reflections. The "print" may give the necessary hints if readable.
     
  3. Haelind

    Haelind

    9
    1
    Jun 27, 2019
    Last edited: Aug 13, 2019
  4. Audioguru

    Audioguru

    2,554
    576
    Sep 24, 2016
    You do not step down to 2.2V. Instead you add a current-limiting resistor in series. The resistor will be (12V - 2.0V)/10mA= 1k ohms or use 510 ohms for brighter 20mA. A 1/4W resistor will be fine. Correct polarity of the LED is important.
     
  5. Harald Kapp

    Harald Kapp Moderator Moderator

    9,137
    1,846
    Nov 17, 2011
    The switch function is shown in the datasheet as follows:
    upload_2019-8-13_18-49-58.png
    and so is the LED connection:
    upload_2019-8-13_18-52-7.png
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-