looking for the Standex lg100-1-5 reed relay datasheet

[jpyeron]

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 part
• Chinese supplier
• ebay listing for the part
• and this image:

[jpyeron]

really all I need are the ratings and specifications

[Gyro]

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.

[Terry Bites]

Hmm? https://standexelectronics.com/

[jpyeron]

Hmm? https://standexelectronics.com/

That was my first try, before googling.

The manufacture has not yet responded to my request from two weeks ago.

The 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.

[jpyeron]

@Gyro - Thanks. How would you go about figuring the isolation voltage?

[Gyro]

@Gyro - Thanks. How would you go about figuring the isolation voltage?

Ah, 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).

[Terry Bites]

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

[jpyeron]

Are you fixing something, or are you just curious?

80% 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.

... figuring the isolation voltage?

Ah, that's a bit more tricky. Do you mean across open contacts, or contacts to coil?

Last February's reorganization photo attached...

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.

Both, but clearly with one side of the reed contact in between the coil contacts, it is not for arching voltages.

[Terry Bites]

ha ha ha . I relive my OCD using bin. I chuck thee mystery part in there and hey ho, no more worries!