Linked Questions

-1
votes
1answer
824 views

SMD diode part number from marking code [duplicate]

I can't find SMD diode part no from Marking code,pls suggest if possible.
11
votes
3answers
4k 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....
4
votes
1answer
851 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 ...
0
votes
4answers
5k views

Identifying an unmarked SMD capacitor and chip

So I'm setting myself into SMD components, as I want to create my own compact 5v step down converter, based on this component. I've read that these small brown ceramic capacitors are most likely ...
1
vote
1answer
378 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 ...
0
votes
1answer
2k views

SMD transistor marking

I have a SOT-23 SMD transistor marked "2.X L" as shown in the image. I managed to find out that "2X" stands for 2N4401 and the dot seems to mean "lead free". But I couldn't find the meaning of the ...
-2
votes
1answer
370 views

What IC is this?

This IC must be a timer which is found in a flowmeter. Can anyone help me identify it. Things written on it are 397C1 3310D ...
0
votes
2answers
452 views

how to identify transistor/IC by its model/product number? [closed]

How to identify(biasing/company/working sections) transistor / IC by its model/product number? or details ?Example: 2sc2078, 2n2219 etc. Please help, i need to understand... Thanks
0
votes
0answers
1k views

6 pin SMD IC marking code ADS

Please help me to identify 6 pin SMD IC with top marking ADS
2
votes
2answers
205 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 ...
6
votes
1answer
179 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, ...
0
votes
1answer
671 views

KV7RF SMD Datasheet

Can someone identify a 5-Pin IC SMD with the marking code KV7RF? Searching in Google I didn't find anything. Any help on this?
0
votes
1answer
134 views

How do I know which component this is?

It says 100J and is much bigger than the other components. It has a resistance of 2ohm when the circuit is without power, and 15 ohm when I attach power to the circuit. It has a 1nf capacitance. So ...
0
votes
4answers
117 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. ...
0
votes
1answer
141 views

Can you determine needed input voltage from just looking at this circuitboard?

Question poster's level of knowledge: BEGINNER/NOVICE/MENTALLY CHALLENGED Device: A stage lighting pan/tilt motor, for one axis. Used in sets of two to provide remotely controlled X and Y movement ...

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