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'[EE] Looking for low cost small relay'
2009\03\31@195144 by Dwayne Reid

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Good day to all.

I'm re-working a project that currently uses Aromat / NAIS JS1 relays
- footprint is about 0.65" x 0.875".  I now need to fit 2 relays into
the area formerly occupied by one relay or a little larger.  I
certainly don't have enough room for another JS1 relay.

Relay needs to be 24 Vdc, contacts rated at 1A resistive 24Vac

This is low production volume - perhaps 1000 - 1500 pieces per year.

I'm having a hard time finding low cost small relays!  Lots of small
relays (but not low cost), lots of low cost relays (but not small).

My target price is $0.40 or so in thousands.

I'm hoping that someone has a suggestion.

Many thanks!

dwayne

--
Dwayne Reid   <spam_OUTdwaynerTakeThisOuTspamplanet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax
http://www.trinity-electronics.com
Custom Electronics Design and Manufacturing

2009\03\31@200740 by Matt Pobursky

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On Tue, 31 Mar 2009 17:51:27 -0600, Dwayne Reid wrote:
> Good day to all.
>
> I'm re-working a project that currently uses Aromat / NAIS JS1 relays -
> footprint is about 0.65" x 0.875".  I now need to fit 2 relays into the
> area formerly occupied by one relay or a little larger.  I certainly
> don't have enough room for another JS1 relay.
>
> Relay needs to be 24 Vdc, contacts rated at 1A resistive 24Vac
>
> This is low production volume - perhaps 1000 - 1500 pieces per year.
>
> I'm having a hard time finding low cost small relays!  Lots of small
> relays (but not low cost), lots of low cost relays (but not small).
>
> My target price is $0.40 or so in thousands.
>
> I'm hoping that someone has a suggestion.

Dwayne,

I went on this same quest last fall for a new project. I spent the better
part of a day scouring Digikey, Mouser, several other distributors and
relay manufacturer's websites.

Sadly, I came to the conclusion that the JS1 style relay is the lowest
cost/space relay available. Anything smaller is more expensive and anything
larger is either overkill/too big/more expensive. It also seemed to me that
everyone and their brother makes a JS1 compatible relay but the smaller
relays are less standardized. I suspect that's one reason they're not as
inexpensive as the JS1 types.

Matt Pobursky
Maximum Performance Systems

2009\03\31@202338 by Brent Brown

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> I'm re-working a project that currently uses Aromat / NAIS JS1 relays
> - footprint is about 0.65" x 0.875".  I now need to fit 2 relays into
> the area formerly occupied by one relay or a little larger.  I
> certainly don't have enough room for another JS1 relay.
>
> Relay needs to be 24 Vdc, contacts rated at 1A resistive 24Vac
>
> This is low production volume - perhaps 1000 - 1500 pieces per year.
>
> I'm having a hard time finding low cost small relays!  Lots of small
> relays (but not low cost), lots of low cost relays (but not small).
>
> My target price is $0.40 or so in thousands.

I've used the Song Chuan 842 series. Contacts are rated nominal 3A @ 125VAC or
28VDC. So far quality and performance has been acceptable, though I'm not using
them at anything near their maximum ratings.

http://www.songchuan.com/PPDF/842.PDF

Last time I bought them here in NZ the 842A-1C-C-12VDC cost me NZ$0.88
(~USD0.50) for several hundred pieces, from Apex Electronics
http://www2.apexelec.co.nz/htm/home.php

--
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: +64 27 433 4069
eMail:  .....brent.brownKILLspamspam@spam@clear.net.nz


2009\03\31@214905 by Dwayne Reid

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At 06:23 PM 3/31/2009, Brent Brown wrote:

>I've used the Song Chuan 842 series. Contacts are rated nominal 3A @
>125VAC or
>28VDC. So far quality and performance has been acceptable, though
>I'm not using
>them at anything near their maximum ratings.
>
>http://www.songchuan.com/PPDF/842.PDF

Many thanks!

Cost is still a little more than I wanted (these are about double the
JS1 relays based on Mouser's thousand lot pricing) but I think I can
make them fit.

I'll keep looking but this gives me a good fall-back position.

Thanks again!

dwayne

--
Dwayne Reid   <dwaynerspamKILLspamplanet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax
http://www.trinity-electronics.com
Custom Electronics Design and Manufacturing


'[EE] Looking for low cost small relay'
2009\04\01@035216 by Alan B. Pearce
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>>I've used the Song Chuan 842 series.

>Many thanks!
>
>Cost is still a little more than I wanted (these are about
>double the JS1 relays based on Mouser's thousand lot pricing)
>but I think I can make them fit.
>
>I'll keep looking but this gives me a good fall-back position.

Have a look at the Omron G6K-2F series. Even smaller than the Song Chuan
(well, shorter, about the same width) with DPDT 1A contacts, available with
24V coil. I get them from Farnell.

http://onecall.farnell.com/omron-electronic-components/g6k-2f-24dc/relay-smd-dpco-24vdc/dp/4446203
for SMD version.

2009\04\01@230025 by Bob Axtell

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Dwayne, there are military-rated TO5 (!) relays, but they  are very VERY pricey.

I would design a small relay replacement using FETS.

--Bob

On Tue, Mar 31, 2009 at 4:51 PM, Dwayne Reid <.....dwaynerKILLspamspam.....planet.eon.net> wrote:
{Quote hidden}

>

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