New component ID of the day...

[eccerr0r]

Not sure where I got it, I did not desolder it, so I haven't the foggiest idea where it came from.

The reverse side looks no different, except it's all black with no printing on it.

[stj]

Re: New component ID of the day...

looks like an old cap, did you meter it?

[capwizard]

Re: New component ID of the day...

It is a transient voltage suppressor ( TVS diode as same as zener diode ), responses time is 100 ns, faster than Varistor.

It should come from a power supply board. When you were collected useable parts from it, you cut it with a needle-nosed plier and you may not know how to use it or you don't need to use it, so it’s been in your parts box since then.

Could we have a more difficult quiz?

[eccerr0r]

Re: New component ID of the day...

That's the problem, I didn't collect it, someone else did

If it's a transient protection diode, aren't there more useful information than just response time? Like perhaps voltage?

I haven't metered it at all yet, in fact, I'm not sure where it is. I'll have to go find it...

My thinking is that it's some sort of hybrid... what's inside I have no idea.

[R_J]

Re: New component ID of the day...

It could be a capacitor, 100nf, here is another one: https://www.edn.com/electronics-blog...ird-components

I Have a suspicion it could also be a 100nS delay line

[capwizard]

Re: New component ID of the day...

I don't know either, probably save ink. you know, right now, new SMD resistors don't even have any marking.

--------------------------------------------------
"High Power TVS Overvoltage Protection Diodes"
https://youtu.be/thRy8FKFHug

[capwizard]

Re: New component ID of the day...

It is likely a capacitor, 100nf, here is another one: https://www.edn.com/electronics-blog...ird-components

...the unusual hollow construction...is because the TVS is PN-NP two flat PN junction (diodes) combined together

The problem is that the author was not sure what it was. I'm pretty sure it is the PN Junction semiconductor TVS diode.

[eccerr0r]

Re: New component ID of the day...

Aha...Thanks R_J, that was what I needed to see. After losing my main portable capacitance meter to failure of some sort (ugh... got tired of tracing tracks) I haven't tried it on a capacitance meter. Will see how it shows up on my Sencore.

So... answer is... a thermpacitor! Well, need to check it to be sure.

[capwizard]

Re: New component ID of the day...

the thermistor is a resister no needs to be so big (thick).

...shows up on my Sencore....you're an old tv man? Like me.

[eccerr0r]

Re: New component ID of the day...

No clue. Thermally sensitive capacitor so it will offset the thermal effects of something else. Might be useful if someone doesn't want to add a thermistor.

I really should get some sort of better portable capacitance meter, or simply build one of those avr transistor testers. But I do happen have a bench top Sencore LC meter, alas, it doesn't even do ESR... It has, however, determined L and Q for many an inductor for me, which are the primary benefits of the tool...

[capwizard]

Re: New component ID of the day...

I strongly recommend this, I used every day, digital ESR meter to you and the avr transistor tester is must have tool. picture 3 avr transistor tester still has smd capacitor on it.

[eccerr0r]

Re: New component ID of the day...

Heh.

For fun I tried uploading the picture to google... it thought it was made of leather.

Good to know AI still needs work.

[capwizard]

Re: New component ID of the day...

Google is constantly improving, by 2040, Google will have a spectrum analyzer and CT scanner App for your cellphone then they will tell you....it is TVS and you might (86.3%) have osteoporosis in the future.

[madan1]

Re: New component ID of the day...

Saw this on a local forum. Looking for a datasheet.. there are some clues about the IC which I can post later.

[R_J]

Re: New component ID of the day...

I found the forum (hardwarebg) where your digital clock ic is from but, was unable to find any information on that TI chip.

[madan1]

Re: New component ID of the day...

Yes, indeed that's the forum.
Looks like this is some kind of a watch display controller, but nothing else comes out from the markings on the IC.
It's not my project/problem, but just got surprised how the Internet has not heard about the AC5962

[eccerr0r]

Re: New component ID of the day...

hate it when companies mislabel their parts with custom markings or removed markings :\

[stj]

Re: New component ID of the day...

like ON-Semiconductor / Motorola??

[eccerr0r]

Re: New component ID of the day...

and every other company that allows custom markings...