Miniature Omron G6K relays

Sep 13, 2012 3 Replies

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Jeroen Belleman 13 years ago

Some of you may be interested. Recently, John Larkin mentioned his use of many Omron G6K-2G-Y-DC5 DPDT relays here. I was interested, but worried about the capacitive coupling between the two sections, which isn't mentioned in the data sheet. So I measured it: It turns out to be about 30fF between the pair of open contacts and about

110fF between the pair of closed ones. I deduce that the moving parts have about 80fF between them then.

I measured contact-to-coil capacitances too: 200fF for an open contact and 800fF for a closed pair, after correction for the pad capacitances.

Jeroen Belleman

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Phil Hobbs 13 years ago

Good info, thanks.

Cheers

Phil Hobbs

Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net

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John Larkin 13 years ago

Amazing parts, no? No semiconductor can approach this, much less DPDT for about $1.50.

Nice data, thanks. Were those 3-terminal measurements? On top of a ground plane?

I haven't tried making a transmission-line switch and characterizing the quality, which would be TDR in my world. I'll throw a test layout on my next multipurpose multilayer hack board.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

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Jeroen 13 years ago

This was measured on a single-sided board with a fat ground trace running between the rows. The measuring instrument was a HP5387D NA. The coupling looked purely capacitive up to some 100MHz. Beyond that, the curves got bumpy, probably mainly due to my quick & dirty lash-up.

They are very nice parts indeed.

Jeroen Belleman

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