looking for the Standex lg100-1-5 reed relay datasheet - Page 1
Forum section: electronics / projects

author: jpyeron
author_rank: Regular Contributor
timestamp: May 08, 2021, 11:59:32 am
content: Any ideas where I can get the datasheet? The manufacture has not yet responded to my request from two weeks ago.Internet searches only get me:ebay item using the partChinese supplierebay listing for the partand this image:

author: jpyeron
author_rank: Regular Contributor
timestamp: May 08, 2021, 12:01:16 pm
content: really all I need are the ratings and specifications

author: Gyro
author_rank: Super Contributor
timestamp: May 08, 2021, 12:15:21 pm
content: Try looking up glass reed switch elements, based on its physical dimensions. That should give you some idea - although there are a few different contact platings available, so go for worst case.Coil voltage can be estimated from the winding resistance, comparing against other available reed relays of similar physical size too.

author: Terry Bites
author_rank: Super Contributor
timestamp: May 09, 2021, 02:58:12 pm
content: Hmm?https://standexelectronics.com/

author: jpyeron
author_rank: Regular Contributor
timestamp: May 09, 2021, 06:35:44 pm
content: Quote from: Terry Bites on May 09, 2021, 02:58:12 pmThat was my first try, before googling.Quote from: jpyeron on May 08, 2021, 11:59:32 amThe LG series is so discontinued, they do not even list it:https://standexelectronics.com/products/reed-relays-optocouplers/nor does their search return any results.

author: jpyeron
author_rank: Regular Contributor
timestamp: May 09, 2021, 06:38:02 pm
content: @Gyro - Thanks. How would you go about figuring the isolation voltage?

author: Gyro
author_rank: Super Contributor
timestamp: May 09, 2021, 08:27:37 pm
content: Quote from: jpyeron on May 09, 2021, 06:38:02 pmAh, that's a bit more tricky. Do you mean across open contacts, or contacts to coil?Contact - contact should again be defined by comparing the dimensions of the reed switch element against other specs - these things are pretty standard. More important will be the switch rating - AC vs DC depending on your application. This strongly affects the rating, as does resistive load versus inductive.I notice from the Standex website, they list a range of reed switch elements. I'm afraid that, without any help from them, it may be a matter of trawling through their reed switch datasheets and coming up with a worst case set of figures for the same sized elements.It would be helpful to know what equipment / circuit the relay is used in? I notice that Standex still make a couple of open frame reed relays, but they are high isolation types, it makes me wonder if it is from a low leakage application (hard to say without an end view).

author: Terry Bites
author_rank: Super Contributor
timestamp: May 10, 2021, 05:40:11 pm
content: Buy something that is specd. This thing looks like it has an eighties date code.Are you fixing something, or are you just curious?read dis.https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjVquHz07_wAhVfQxUIHcRECzAQFjAMegQIFBAD&url=https%3A%2F%2Fstandexelectronics.com%2Fwp-content%2Fuploads%2F2018%2F04%2FThought-Leadership-Reed-Relays-for-Insulation-Measurement.pdf&usg=AOvVaw0ivbe3oulO_xzhiP5WHLxD

author: jpyeron
author_rank: Regular Contributor
timestamp: May 15, 2021, 01:01:59 pm
content: Quote from: Terry Bites on May 10, 2021, 05:40:11 pm80% OCD, 19% curious. I have piles of them and was organizing parts bins - everything tested, datasheets, and drawers labeled. Figured if someone else has it here would be the place to inquire, and if I find it here is where to share. Still waiting on Standex to respond.Quote from: Gyro on May 09, 2021, 08:27:37 pmBoth, but clearly with one side of the reed contact in between the coil contacts, it is not for arching voltages.

author: Terry Bites
author_rank: Super Contributor
timestamp: May 16, 2021, 10:44:35 am
content: ha ha ha . I relive my OCD using bin. I chuck thee mystery part in there and hey ho, no more worries!