SMD Resistor Markings to disappear! - Page 1
Forum section: electronics / general

author: nicknails
author_rank: Regular Contributor
timestamp: April 14, 2013, 10:35:09 pm
content: Uh oh, looks like Yageo announced that it's going to stop putting codes on their SMD resistors. I wonder if other companies will follow suit. Personally, I think it's going to suck. It'll make it a lot harder to troubleshoot.http://www.soselectronic.com/?str=1265

author: c4757p
author_rank: Super Contributor
timestamp: April 14, 2013, 10:46:15 pm
content: Figured this was coming. Resistors are pretty much the only SMD part left (except large ICs) that are still labeled with anything somewhat useful.

author: Unknown
author_rank: Unknown
timestamp: April 14, 2013, 10:48:00 pm
content: This can be a big problem, at least for me.I hope that the rest of the manufacturers do not take the same decision.

author: c4757p
author_rank: Super Contributor
timestamp: April 14, 2013, 10:56:37 pm
content: Quote from: Armageddon on April 14, 2013, 10:48:00 pmSadly I'm sure they will. It's not like any of their big customers are really going to care, and if they can eliminate an entire step of the production process the bean counters will ejaculate.

author: BiOzZ
author_rank: Regular Contributor
timestamp: April 15, 2013, 01:17:49 am
content: not shocking ... when you can put probes on your pick and place and also verify there value is correct ... but it was not much of a problem with caps it wont be a real problem with resistorstho i fear were getting to the point where you can no longer preform part harvesting :/ a LARGE chunk of my part box is verified components taken off dumpster appliances!what really depresses me is my kids wont get to find the joy of playing with CRT flyback transformers

author: c4757p
author_rank: Super Contributor
timestamp: April 15, 2013, 01:19:33 am
content: Quote from: BiOzZ on April 15, 2013, 01:17:49 amDo you seriously harvest SMD resistors??

author: BravoV
author_rank: Super Contributor
timestamp: April 15, 2013, 01:23:35 am
content: Quote from: c4757p on April 15, 2013, 01:19:33 amI do, especially < 1 ohm and even better high wattage ones, these bugger are quite pricey if bought new.

author: BiOzZ
author_rank: Regular Contributor
timestamp: April 15, 2013, 01:42:16 am
content: Quote from: c4757p on April 15, 2013, 01:19:33 amyeah ... nothing a cheap heatgun and a metal card cant do .. just heat up the pcb and scrape them offSMD resistors and caps are just as useful as threw hole for me when it comes to second hand parts ... you can for the most part solder them right between pads on perf boards!

author: mrflibble
author_rank: Super Contributor
timestamp: April 15, 2013, 01:44:54 am
content: Quote from: c4757p on April 14, 2013, 10:56:37 pmPlease don't do that. Tea hot!

author: c4757p
author_rank: Super Contributor
timestamp: April 15, 2013, 01:49:19 am
content: Huh?

author: mrflibble
author_rank: Super Contributor
timestamp: April 15, 2013, 01:53:16 am
content: I was just drinking some hot tea when I read your remark concerning ejaculating bean counters.

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 15, 2013, 02:39:02 am
content: A lot of SMD resistors already don't have markings. But that's easily solved with a multimeter. (If there's a fault that causes the resistor to change value, it most likely would have obliterated any markings anyways.)BTW, I have also seen unmarked through hole resistors. I think they're production errors but then why weren't they rejected?

author: nanofrog
author_rank: Super Contributor
timestamp: April 15, 2013, 03:36:04 am
content: Quote from: NiHaoMike on April 15, 2013, 02:39:02 amIf I had to guess (assuming production errors), they were slated for destruction, but an enterprising exec or employee "slipped them out of the back door" instead. Money coming in instead of sending them off for recycling would certainly look better on paper, and for an enterprising employee (unbeknownst to their employer), an additional side income.

author: gxti
author_rank: Frequent Contributor
timestamp: April 15, 2013, 04:53:37 am
content: Quote from: BravoV on April 15, 2013, 01:23:35 amThose aren't the cheapies that are being discussed here though. Larger, more expensive resistors would still have markings. The relative cost of marking a 50 cent part is trivial, but the cost for a sub-cent part is much more significant.Quote from: BiOzZ on April 15, 2013, 01:42:16 amYou're a looney!

author: Neilm
author_rank: Super Contributor
timestamp: April 15, 2013, 05:39:29 pm
content: Quote from: nanofrog on April 15, 2013, 03:36:04 amI have seen through hole resistors that were deliberately not marked. They were designed for potting or immersing in oil so they don't want chemical contamination. After all, if you have potted it you can't read the marking anywayNeil

author: SeanB
author_rank: Super Contributor
timestamp: April 15, 2013, 06:43:04 pm
content: SMD test tweezers look like a good thing, luckily they came with my LCR meter. Might take a while to get things together on the bench though if i sneeze though.