I am trying to understand SMD components. Came accross ICs and seems like quite hard to hunderstand. Is there any general rule? Could someone help me to identify the ICs in the pics. One is marked as
"1H1H 788 A5DS" and the second is "DZAA XVFH". I searched those names, but couldn't find anything.
Electronic – How to identify SMD components
integrated-circuitsurface-mount
Related Solutions
I've done this a couple of times, with a bit of practice it gets fairly easy.
- KT3 is a BAS21 diode. Link goes to the data sheet, includes information on similar diodes (BAS19/BAS20/BAS21) and the date code (yours seems to be July 2007)
- CVL seems to be a transient voltage suppressor. The link goes to a site with lots of SMD codes.
- A48 could be one of several things. You'll need to compare the connections of your chip to the datasheets of the various parts that may be marked A48 (most likely a voltage regulator.)
- 1PX looks like its a voltage detector.
For the 1PX, the dot shows pin 1. Putting Pin1 at the lower left mean you read it 1PX instead of other combinations you tried (K and stuff.)
Sorry, I can't give you any really good tips for finding the codes.
The linked site helps, and there are others like it, but it all comes down to having good google-fu.
Google, get ideas, check the circuit against the datasheets.
Best Answer
I think, the SMDs in the pictures are:
About, How I find the smd component? I usually try each group of the name plus "datasheet" and if I don't find anything, I may add some description word. For example:
The way to check that you were correct is mainly check the pinout, and the "marking" section in the datasheets. In the DZAA, for example, the pinout have double Vin and Vout pins, and in the image, they are soldered together, so I can be pretty sure, it is the correct datasheet.
O hope this have been helpful.