Fake(?) Omron G3NA-225B SSR from Ebay, need verification - Page 1
Forum section: electronics / general

author: Kjelt
author_rank: Super Contributor
timestamp: October 23, 2013, 07:52:25 pm
content: Hi ,bought a few Omron G3NA-225B SSR's from Ebay about 1/3 the price of Farnell, but I think they might be fakesI opened one up and found a Halon PCB with bad soldering and crappy components (except the opto and the triac which look ok).Halon is a chinese SSR supplier so who knows maybe they supply Omron for the chinese market?I wonder if any member of this forum has a genuine Omron G3NA-225B SSR and can verify that this is fake or not, I would appreciate it.

author: Fraser
author_rank: Super Contributor
timestamp: October 23, 2013, 08:44:29 pm
content: I don't see OMRON putting their quality branding on such a poorly made device.+1 for it being a fake.Even if not, I would not use it !

author: Nerull
author_rank: Frequent Contributor
timestamp: October 24, 2013, 03:17:56 am
content: How close is it to the omron datasheet weight of 60g for the 220/70g for the 240? (The 225 is not in the datasheet).

author: amyk
author_rank: Super Contributor
timestamp: October 24, 2013, 12:11:44 pm
content: It says 25A at 24-240VAC... can you test it to see if it meets the spec?They do look very similar to the Halon HGKs:http://www.fctcl.com/Upload/%E4%BA%A7%E5%93%81%E4%B8%AD%E5%BF%83/Solidstaterelay/HGKSeriesDCSolidStateRelay-14464728391.pdf

author: saturation
author_rank: Super Contributor
timestamp: October 24, 2013, 12:32:30 pm
content: Relays I've seen in the USA of that design by Omron, the puck shape, were typically made in Japan. Its possible Omron has a Chinese factory now but Omron products are heavily counterfeited that I'd only buy from an authorized distributor; the real ones typically go for $30-40 each versus $5-6 for some Chinese web sites.http://www.grainger.com/Grainger/OMRON-Solid-State-Relay-6C905Omron 'type':http://www.aliexpress.com/item/Solid-State-Relay-Omron-Type-240VAC-25A/512765898.html

author: Kjelt
author_rank: Super Contributor
timestamp: October 24, 2013, 01:56:51 pm
content: Quote from: Nerull on October 24, 2013, 03:17:56 amI Will weigh it tonight. Though it is potted so I think the weight will be ok.Quote from: amyk on October 24, 2013, 12:11:44 pmI dare not to test it at 25Amps but will see if I can rig it this weekend to switch some 5amps or something like that.The problem is trust, it looks crap inside so if the triac is not mounted properly to the internal metalheatsink an external heatsink will also not be able to transfer away the heat and this can result in fire. But will see if I can make a safe test outside this weekend to see how it handles it self.QuoteThat is a DC SSR but indeed familiar looks, which is not good in this caseQuote from: saturation on October 24, 2013, 12:32:30 pmOk well it would be strange if they have two factories making these I guess, again bad news but looking inside was what made me nervous in the first place.It would be great if somebody has such an Omron relay in their spareparts closet and could have a look inside, that would be the final verdict I guess.QuoteWhy can't they stop this? A simple letter from a lawyer to Ebay should suffice?QuoteYeah I paid around $10 each I believe.I always hear if it is too good to be true it probably is not true, and still there are a lot of cheap chinese electronics sold on ebay that are pretty good quality for their price. However with a product such as this I take no chances, better write off $40.- then have a fire.

author: Len
author_rank: Frequent Contributor
timestamp: October 24, 2013, 07:01:46 pm
content: Quote from: Kjelt on October 24, 2013, 01:56:51 pmFirst Omron has to get a sample unit to see if it is counterfeit. Then, if they convince eBay to take down the listing, it will just re-appear tomorrow under a different account. It's just not possible to keep up with all the phony products on the internet.QuoteThat's why I trust something made in the Netherlands more than something made in China.

author: Kjelt
author_rank: Super Contributor
timestamp: October 24, 2013, 07:27:31 pm
content: Quote from: Nerull on October 24, 2013, 03:17:56 amThe device itself weighs 59 grams and boxed with manual it is 78 grams. So pretty close.

author: Nerull
author_rank: Frequent Contributor
timestamp: October 24, 2013, 09:10:54 pm
content: Counterfeiting is rampant on ebay. I've seen some hilariously bad fakes of high end race bike parts, but also many that are indistinguishable on the outside. Until they fail on you.

author: amyk
author_rank: Super Contributor
timestamp: October 25, 2013, 05:58:46 am
content: Quote from: Kjelt on October 24, 2013, 01:56:51 pmEven if they're remarked Halons, the datasheet for them says they're tested to 100% of rated current so that's what you should aim for. While you might not get to know if the brand is fake, you will get to know whether their specs are.Of course if they die far below 25A (with heatsinking) then I'd definitely be worried, but if they can handle 25A continuously no problem...