Trying to identify microphone and button component types

Thread Starter

Chewpcb

Joined Jan 21, 2019
5
Hi there,

I've been working on a little project and have been using electret microphones and microswitches. It's easy to find these from online retailers.

However I've recently discovered there are much smaller components and was trying to identify what they're called so I could source some for myself.

For example, I took apart a pair of Samsung headphones with an inline switch - it has a small mic and some small (piezo?) buttons - see the attached photos below.

Is anyone able to tell me what these type of components are called and where I might get some?

Thanks in advance

A

IMG_20190121_175822 - Copy.jpg IMG_20190121_175807 - Copy.jpg
 

AnalogKid

Joined Aug 1, 2013
10,949
The round gold thing is the mic, but it might be a custom part whipped up for (or by) Sanyo. It doesn't look like a typical MEMS mic. If you search Digi-Key for electret microphones, there are some *very* small ones.

ak
 

Thread Starter

Chewpcb

Joined Jan 21, 2019
5

Audioguru

Joined Dec 20, 2007
11,248
The very cheeeep Chinese microphones have no manufacture's name (no-name-brand) and absolutely no spec's except for the size and weight of the box they are shipped in. I would never buy them.
 

Thread Starter

Chewpcb

Joined Jan 21, 2019
5
The very cheeeep Chinese microphones have no manufacture's name (no-name-brand) and absolutely no spec's except for the size and weight of the box they are shipped in. I would never buy them.
Ah, ok I see.

Actually that raises another point for me - what is a good brand of electret mic? How do I know who is a reliable manufacturer and who isn't? Same for other components.

Cheers
 

Audioguru

Joined Dec 20, 2007
11,248
I buy electronic parts from Digikey and Newark who do not sell cheeeep Chinese junk. They have hundreds of excellent electret mics in many sizes.

I used the electret mic from my daughter's very old first cell phone in my FM transmitter and it works great. I have an old electret mic from a child's toy in my sound level indicator.
 
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