[Amps] Automotive Relays

[Paul Christensen]

Although not strictly an "automotive" relay, W8ZR has conducted extensive 
tests on the Tyco/Shrack RTB14012, available for USD $1.80 ea. from Mouser 
Electronics:

http://www.mouser.com/Search/Refine.aspx?Keyword=RTB14012

Jim is using these relays for high-power 1.5KW+ switching in his new 
StationPro controller.

http://www.w8zr.net/stationpro/index.htm

He's seeing some very low loss and VSWR numbers up through 6m, with decent 
performance through 2m.  Not bad for a $1.80 PCB sealed power relay.  I 
believe Jim has tested another similar relay with even lower loss in the 
same price class.

Paul, W9AC


> ----- Original Message ----- 
> From: "Dave Hachadorian" <k6ll at arrl.net>
> To: <amps at contesting.com>
> Sent: Tuesday, August 03, 2010 4:54 PM
> Subject: Re: [Amps] Automotive Relays
>
>
>> Below is some info from W2VJN on inexpensive relays for RF. They
>> are available for $2.43 each here:
>> http://parts.digikey.com/1/parts/747811-relay-pwr-spdt-10a-12vdc-pc-mnt-jw1fsn-dc12v.html
>>
>> Dave Hachadorian, K6LL
>> Big Bear Lake, CA
>>
>>
>>> The relays which we use in the Top Ten Devices boxes are 10
>>> amp,
>>> sealed power relays.  They are very small and have very low
>>> inductance.  The contacts are connected to the base pins with
>>> wide conductors.  I have run many power tests on these relays
>>> and the pc boards they are mounted on with temperature monitors
>>> and they will take full amateur power (+) to over 30 MHz.  We
>>> rate our boxes conservatively at 1.5 KW.  The part number is
>>> JW1FSN-DC12V.  They come with several different brand names on
>>> them.  Similar relays are being used by other manufactures of
>>> amateur boxes and they rate them variously at 3 KW and 5 KW.
>>>
>>> George, W2VJN
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>
>