Assistance with identifying a surface mount component - Page 1
Forum section: electronics / beginners

author: jakesvdm27
author_rank: Contributor
timestamp: July 29, 2024, 08:23:18 am
content: Hi, I am new to electronics (just a hobby) and would like some assistance in identifying a surface mount component. From my research it seems like it could be part of the Panasonic AQY282 family (PhotoMOS), however I am not sure since I cannot find the exact markings on images I found.The component has 282 on it with the numbers 040 just below it. All the images I could find of the AQY282 components had the 282 on it with the same manufacturers logo, but instead of 040 it had other numbers.There are three of these components on the pc board. I have also posted pictures of the surrounding components. On the other side of the pc board is a RJ11 plug (6pins), which connects these components to pins 4,5 and 13 of a MC68HC908QY1. Not sure if this helps or not. The RJ11 plug also has +15v and Ground from the MC68HC908QY1 PC board.What confuses me is that these three components are marked as S4, S5 and S6. If I am correct, this indicates that they are some sort of a switch. Next to the RJ11 plug is a 357T, which I found out is a photocoupler. However, it is marked as U15.How I got here:This is part of a robotics system on my mom's quilting machine. The Quilting machine suffered a nasty power surge, which took out two of the PC boards in the machine. We got those replaced (the MC68HC908QY1 was blown to pieces on the one pc board), and the machine is working again. However, the robotics says it cannot communicate with the machine. With my limited knowledge of electronics, I traced the problem to these three 282 parts in question.If they are some sort of OptMOS / optocoupled family, it might explain why everything else on the robotics pc board seems fine. All the lights come one, including the ready light (error one is flashing). And the screen it is connected to boots up and sees the pc board (shows the version number).The plan is to replace these three components to see if it all works out. If not, we need to spend the USD6k for new robotics.I would really appreciate it if someone could help identifying the three components, and possibly a replacement part. Thank you !

author: jakesvdm27
author_rank: Contributor
timestamp: July 29, 2024, 08:28:43 am
content: Just to introduce myself, I live in South Africa and electronics are more of a hobby than anything else. I own one of the EEVblog multimeters, and I am very happy with it. I also bought myself a Rigol 1054 scope, but after watching Dave's video on how not to blow up your scope, I am afraid to connect it to anything that does not run on a batteryTo be honest, I know very little about electronics and decided to rather program ESP boards, Arduino boards and RPi's. However, I do love the challenge of trying to fix broken electronic parts. Everything I know is self taught.

author: Gyro
author_rank: Super Contributor
timestamp: July 29, 2024, 09:07:30 am
content: Welcome.You may want to contact a moderator (click on "Report to moderator' on the bottom right of your post) and ask them nicely to change your username. Bots regularly trawl the forum and will very quickly pick up the email address that you used.

author: jakesvdm27
author_rank: Contributor
timestamp: July 29, 2024, 09:16:40 am
content: Thank you ... will do that

author: gamalot
author_rank: Super Contributor
timestamp: July 29, 2024, 09:18:56 am
content: Panasonic AQY282Shttps://www.lcsc.com/product-detail/Solid-State-Relays_PANASONIC-AQY282S_C129284.html

author: jakesvdm27
author_rank: Contributor
timestamp: July 29, 2024, 10:25:36 am
content: Thank you so much. You are a lifesaver.I thought it could be a AQY282*, but since I could not find images with 040 on it, I was uncertain. In fact, searching for AQY282S (and even AQY282SZ) yielded a lot of images with 282 on it, but a lot if different numbers where I have 040. Any idea what the other numbers are for, or if it even makes a difference ?I will order these parts and see if it works out. Thanks again !

author: gamalot
author_rank: Super Contributor
timestamp: July 29, 2024, 11:59:29 am
content: Forget "040", it's just a batch number or date code.

author: jakesvdm27
author_rank: Contributor
timestamp: July 29, 2024, 02:58:22 pm
content: Thanks !!