TE Connectivity contactors

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jonescg
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TE Connectivity contactors

Post by jonescg »

Ever wished you could find a contactor small enough to do pre-charging or HV auxiliary switching but didn't want to fill a massive box up with needlessly large contactors?
Looks like TE Connectivity have some up with some pretty neat solutions.

http://www.te.com/global-en/products/re ... =pgp-story
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Richo
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Re: TE Connectivity contactors

Post by Richo »

Most of the ppl I deal with use the TE part number 2203997-1.
And I'm not seeing any around.
Which doesn't say much since most TE relays are on like 60 week lead times. :evil:
I told TE to build a relay factory a year ago - really no joke.
I asked them last week why the problem is still on going since they have had a year to ramp up production.
They had no comment.

And add the cap shortage and nylon shortage and resistor shortage - tough times ahead...

Interesting tho.
I'll keep an eye out for some.
So the short answer is NO but the long answer is YES.
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Richo
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Re: TE Connectivity contactors

Post by Richo »

OMRON has a possible alternative G9EA-1 12VDC.
But its not as compact.
Doesn't really seem any cheaper than the kilovac either.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

The TE contactor would have a loss of about 8W at 80A.
So considering an IGBT solid state switch with the same loss the voltage drop would have to be 0.1V which doesn't exist.
A FET solid state switch would have to have an on resistance of 1.2mR.
At 400+ volts that's a tough ask.
10-15 Fet's in parallel might do it but once again it would be bigger and cost about the same as the omron contactor.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

After a bit of searching around I also found that TE now also do a "precharge" conatactor.
But really it's just a low power contactor that COULD be used for precharge as it has a limit of 20A 450V.
Its called the "Mini K HV".
Model number V23700 and has a couple of variants.
Most of them seem to be around the $125 which isn't really worth it.

HOWEVER I did find one seller doing the V23700-C0001-A408 / 2-1904058-5 for about $25.
These are the PCB variant and are quite compact.
I'm interested in using a couple of these for precharge - suprise suprise...
At 150V 20A this is 3kW which is enough for the HV->12V DCDC converter (alternator).
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

The datasheet for the EVC80 is dated 5/2018.
So it maybe that the product is too new to be picked up by suppliers.

So there is hope some might become available soon rather than the usual 50 week lead time...
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

Omron also have a 25A 400V relay in the G9EJ series.
They are about $35ea.
There are blade quick connect in that series.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

So I ended up buying 5 of the mini-K contactor.
They were about $25ea.
Sad part was I decided I also wanted to isolate the charger from the pack when not charging.
And now I can't get the mini-K contactors for $25 anymore - they are more like $100+

So I had another look around for some more smaller relays:

FTR-J2AK012W
SPST-NO
450V 10A
$16.62

MKS1XT-10 DC12
SPST-NO
220V 10A
$25.06

G9EJ-1-DC12
SPST-NO
400V 15A
$40.73

G9EJ-1-E-UVD DC12
SPST-NO
400V 15A
$42.87

MKS1XTN-10 DC12
SPST-NO
220V 10A
$48.65

So it looks like the FTR-J2AK012W is the winner.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

The above are proper DC relays.
Not regular relays that claim 200-300VDC under exceptional conditions.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by jonescg »

You can see the magnetic blow-outs potted in the top corners of the unit.
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Re: TE Connectivity contactors

Post by Richo »

And the screw that stick to them...
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by jonescg »

Just ordered 2 of the FTR-J2AK012W relays myself.
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Re: TE Connectivity contactors

Post by Johny »

jonescg wrote: Mon, 13 Aug 2018, 13:39 Just ordered 2 of the FTR-J2AK012W relays myself.
Where are the FTR-J2AK012W available for under $24 ?
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Re: TE Connectivity contactors

Post by jonescg »

That's US dollars. By the time the exchange rate, shipping and GST are added it was more like $41.
I got mine from Mouser.
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Re: TE Connectivity contactors

Post by Richo »

No I got mine for AUD$25.10 inc gst landed.
But as a big time buyer I bought thousands of dollars of parts in one order and I get discounts on top of that.
John Doe off the street has no chance...

They are quite good as they are really 2 seperate relays in one.
So I can use ONE as a mini contactor for both the + and - rail.
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

So the short answer is NO but the long answer is YES.
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Richo
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Re: TE Connectivity contactors

Post by Richo »

Oh yes Mouser now adds GST even in USD :roll:
So the short answer is NO but the long answer is YES.
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Re: TE Connectivity contactors

Post by Richo »

After a year the EVC80 are still not available.
Waiting .. waiting .. waiting ...
How long can it take to wrap some wire near some metal plates.
So the short answer is NO but the long answer is YES.
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