# What is this switch called? **URL:** \ **Category:** Optoelectronics\ **Tags:** electromechanical, led-indication-discrete, cross-reference, part-identification, optoelectronics\ **Created:** [August 7, 2023, 10:43pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945 "2023-08-07T22:43:40Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![wagda747](https://avatars.discourse-cdn.com/v4/letter/w/ecb155/32.png) [@wagda747](https://forum.digikey.com/u/wagda747)\ **Post date:** [August 7, 2023, 10:43pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/1 "2023-08-07T22:43:40Z")
![20230807_121718](https://global.discourse-cdn.com/digikey/original/3X/e/e/eea337fe8f40d93eb5101838b9da5de709b514b0.jpeg) I am looking for the name of switch that is between C5 and R4. There is a push pad that activates it on other side. Any ideas, much appreciated. ---
**Author:** ![ryan\_urness](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@ryan\_urness](https://forum.digikey.com/u/ryan_urness)\ **Post date:** [August 7, 2023, 11:20pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/2 "2023-08-07T23:20:12Z")
Hello, Thank you for contacting DigiKey’s technical support. We are looking into this switch and will get back to you as soon as we can. Thank you Ryan ---
**Author:** ![APDahlen](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/apdahlen/32/40191_2.png) [@APDahlen](https://forum.digikey.com/u/APDahlen)\ **Post date:** [August 8, 2023, 2:02am UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/3 "2023-08-08T02:02:42Z")
**This posting could contain errors. Please see the continued conversation below.** Hello wagda747, That appears to be a tactile switch. DigiKey has many in stock: > **[Switches | Tactile Switches | Digi-Key Electronics](https://www.digikey.com/en/products/filter/tactile-switches/197)** > > Tactile Switches are in stock at DigiKey. Order Now! Switches ship same day Unfortunately, I am unable to offer a specific recommendation as I do not know the physical dimension of your particular switch. If you are not already familiar with the process, I would encourage you to walk through this tutorial describing how to use DigiKey’s search engine. > **[Part Search Help | DigiKey](https://www.digikey.com/en/help/part-search-help)** > > This article will provide some tips and tricks that can be used to make DigiKey’s parts search even easier to use. Please let us know if you are unable to locate the part. We will do our best to assist. We will need to know the physical dimensions including the height proud of the circuit board. Best Wishes, APDahlen P.S. From which side of the PCB is the button plunger (push pad) located? It looks like the plunger is located on the same side of the PCB as the switch. ---
**Author:** ![PaulHutch](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/paulhutch/32/3357_2.png) [@PaulHutch](https://forum.digikey.com/u/PaulHutch)\ **Post date:** [August 8, 2023, 10:40am UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/4 "2023-08-08T10:40:44Z")
The green rectangle between R4 & C5 is labeled D4, a diode, most likely an LED. Very high probability that the switch is not an independent component but is custom manufactured along with the custom housing & PCB. ---
**Author:** ![APDahlen](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/apdahlen/32/40191_2.png) [@APDahlen](https://forum.digikey.com/u/APDahlen)\ **Post date:** [August 8, 2023, 5:41pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/5 "2023-08-08T17:41:42Z")
Hello @PaulHutch, I’m intrigued. This is indeed a unique component. Yes, I did consider the possibility that the green component could be a LED. With a bit of imagination, I may be able to see the die and the lead wire (anvil on the right) for D4. Unfortunately, the picture is not clear so I cannot verify against the other components. I still have questions that @wagda747 may be able to clarify: 1. Does this device light up? If so, which direction is the light cast? 2. is it a switch? If so, does if physically click when pressed? 3. Is there is a membrane or plunger associated with the switch. 4. Could you post a few more pictures. A side view would be welcome as would a view of the other side of the PCB. Thank you for the challenge. APDahlen P.S. I added a retraction to my original post as I could be in error. ---
**Author:** ![Robert\_Fay](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robert_fay/32/6529_2.png) [@Robert\_Fay](https://forum.digikey.com/u/Robert_Fay)\ **Post date:** [August 9, 2023, 1:58pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/6 "2023-08-09T13:58:44Z")
I am agreeing with @PaulHutch that the D would likely indicate a Diode or in this case, Light Emitting Diode or LED. While I was not able to identify the part I believe you are looking for a “Surface mount Bottom entry” type LED. [XZCBD45S-9](https://www.digikey.com/en/products/detail/sunled/XZCBD45S-9/4901889) is not the correct part but shares some features that make me think this is the kind of part you are looking for. ![image](https://global.discourse-cdn.com/digikey/original/3X/b/5/b5fa6e4df6221fcf3db4abe6b60764475287a55c.jpeg) ---
**Author:** ![David\_1528](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/david_1528/32/47212_2.png) [@David\_1528](https://forum.digikey.com/u/David_1528)\ **Post date:** [August 9, 2023, 4:20pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/7 "2023-08-09T16:20:35Z")
I would bet the LED shown is probably a “Z-Bend” type rear-mount LED, such as one of [these](https://www.digikey.com/short/npfnpnbw). Sample image: ![image](https://global.discourse-cdn.com/digikey/original/3X/7/b/7b1ab104f79cda11a19a6456a3060e46b9d901fe.jpeg) ---
**Author:** ![wagda747](https://avatars.discourse-cdn.com/v4/letter/w/ecb155/32.png) [@wagda747](https://forum.digikey.com/u/wagda747)\ **Post date:** [August 9, 2023, 6:07pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/8 "2023-08-09T18:07:55Z")
It is a led, it did have 2 leads and is about a third of size of a grain of rice. It didn’t have a base on it like the one you showed me. Thanks, learning more everyday. Now i need to find out how the push pads work. ---
**Author:** ![wagda747](https://avatars.discourse-cdn.com/v4/letter/w/ecb155/32.png) [@wagda747](https://forum.digikey.com/u/wagda747)\ **Post date:** [August 9, 2023, 6:37pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/9 "2023-08-09T18:37:32Z")
Thanks for your reply. Thank you for the clarification with this. It helped me a lot. How can I identify ---
**Author:** ![PaulHutch](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/paulhutch/32/3357_2.png) [@PaulHutch](https://forum.digikey.com/u/PaulHutch)\ **Post date:** [August 9, 2023, 7:24pm UTC](https://forum.digikey.com/t/what-is-this-switch-called/33945/10 "2023-08-09T19:24:39Z")
> [@wagda747](#): > > Now i need to find out how the push pads work. Without pictures of the other side of the PCB and the housing parts I can’t be certain what you’ve got. My guess is that this is a typical consumer product and what you have is: Bare pads on the other side of the PCB that line up with a custom metal contact connected to a custom button that fits in the custom housing. That is a common low cost on/off switch arrangement on modern inexpensive consumer products.