Linked Questions

12
votes
4answers
7k views

A 1USD 11W led bulb circuit and parts analysis

I know this is not a huge deal, but still I want to do it because for Three reasons: 1, it only costs 1 usd. Yep, this is a very cheap led bulb, and I need to take it apart to see if it's trust worthy....
6
votes
1answer
204 views

Identifying component from i2c trace & obscure SMD marking

I wanted to poke around one of those sub-10$ smart bands, so I got a couple of them. I opened it and I was able to identify some major components from the SMD markings, including a Dialog DA14580 MCU, ...
4
votes
1answer
978 views

Identify manufacturer and chip

I'm trying to identify the manufacturer and component from a Belkin tunecast (Lightning) to FM transmitter device. I've searched through a couple of logo sites and Google and was not successful. The ...
3
votes
2answers
298 views

What are the tools to identify ICs by marking?

I have two ICs and I need to discover them. I've searched for the marking on top of them, but I didn't have success. I've tried some tools on the internet (this forum included), also nothing. I used ...
3
votes
3answers
362 views

Component identification (SMD) - Beelink X55 Ultimate

Recently my NUC has decided to release some magic smoke. I found two problematic components in it. F1 fuse, which failed (?) to protect the board and U10 which has manifested a nice eruption point. ...
3
votes
1answer
169 views

SMD identification

Tried all over internet...but not found what it is. Any help appreciated.
2
votes
2answers
441 views

What is this component? Marked R5

Edited: Added more pictures. I'm reverse engineering a PCB but I'm stuck at one component. I can't find out what it is. I thought it is a diode because of the marking on top of it but when I test it ...
2
votes
1answer
73 views

How to read markings on EMI/RFI filter

I am looking at a 3-pad SMD EMI filter chip (see photo) which is marked on the top with "222J". I am familiar with reading the markings on top of resistors and capacitors, but am not sure how to ...
2
votes
1answer
145 views

Unknown 5-pin opamp / comparator IC with “>10” marking

I'm trying to figure out what this 5-pin IC from the below image could be: The SMD Package looks to be TSSOP5. The component is used in the Kemet SS-430 sensor module. I think, is part of the output ...
2
votes
1answer
472 views

Matching LCD controllers to LCD compatible panels

Over the years, I've accumulated numerous LCD panels and controller boards salvaged from TVs, Monitors, Cell Phones, digital picture frames, GPS devices and tablets. I would like to reuse the panels ...
2
votes
0answers
128 views

Help to identify 10-pin IC in a GPS unit

I am trying to repair a GPS unit. There was a zener diode (to56 PolyZen protection diode) which had blown off and I had replaced. This is part of the battery charging circuit I believe, as once I ...
1
vote
1answer
441 views

What function does this PCB circuitry serve?

Backside is metal disc with thermal paste between it and the metal mount to which it is screwed. Input is 6.75V 200mA. What function does the PCB circuitry serve? Is it stepping down the voltage or ...
1
vote
1answer
56 views

Please identify this 8-pin SMT device - markings P636F FDS 6690A

Please assist - I cannot identify this device. I try to label all my SMT components, but this one has slipped through the net. It appears to have a "f" as a logo; the text blocks are P636F; FDS and ...
1
vote
0answers
43 views

Electronic component name & value to be traced

https://en.wikipedia.org/wiki/Electronic_component What are the best ways to trace the electronic components value, name if the name & value are not able to be seen on the component itself ...
1
vote
0answers
2k views

6 pin SMD IC marking code ADS

Please help me to identify 6 pin SMD IC with top marking ADS

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