TE Connectivity contactors

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jonescg
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TE Connectivity contactors

Post by jonescg » Tue, 19 Jun 2018, 09:51

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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Re: TE Connectivity contactors

Post by Richo » Tue, 19 Jun 2018, 13:01

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.
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Re: TE Connectivity contactors

Post by Richo » Wed, 20 Jun 2018, 15:04

OMRON has a possible alternative G9EA-1 12VDC.
But its not as compact.
Doesn't really seem any cheaper than the kilovac either.
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Re: TE Connectivity contactors

Post by Richo » Wed, 20 Jun 2018, 15:12

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.
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Re: TE Connectivity contactors

Post by Richo » Thu, 21 Jun 2018, 12:20

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).
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Re: TE Connectivity contactors

Post by Richo » Thu, 21 Jun 2018, 12:21

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...
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Re: TE Connectivity contactors

Post by Richo » Fri, 22 Jun 2018, 14:43

Omron also have a 25A 400V relay in the G9EJ series.
They are about $35ea.
There are blade quick connect in that series.
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Re: TE Connectivity contactors

Post by Richo » Fri, 13 Jul 2018, 12:32

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.
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Re: TE Connectivity contactors

Post by Richo » Fri, 13 Jul 2018, 12:34

The above are proper DC relays.
Not regular relays that claim 200-300VDC under exceptional conditions.
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Re: TE Connectivity contactors

Post by jonescg » Sat, 14 Jul 2018, 14:07

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 » Mon, 16 Jul 2018, 12:33

And the screw that stick to them...
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Re: TE Connectivity contactors

Post by jonescg » Mon, 13 Aug 2018, 13:39

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

Post by Johny » Mon, 13 Aug 2018, 16:16

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 » Mon, 13 Aug 2018, 16:20

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 » Tue, 14 Aug 2018, 12:39

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.
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Re: TE Connectivity contactors

Post by Richo » Tue, 14 Aug 2018, 12:41

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Re: TE Connectivity contactors

Post by Richo » Tue, 14 Aug 2018, 12:43

Oh yes Mouser now adds GST even in USD :roll:
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