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Old 30th April 2007, 02:18 PM   #1
spencer is offline spencer  Hong Kong
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Default Used 2SK389V / 2SJ109V FS

I have 10 pairs used subject dual fets for sales. Parts are removed from other equipments but had been checked for Idss and function well. The only problem is the fets are with short legs but they are all ok to put into a pcb with proper layout.

Idss is from 11.5 to 15 mA, all purchase must be in pairs and I shall match them within 1mA Idss.

Price for matched pairs is $10 (one K389 and one J109)
Price for matched quad is $24 (two K389 and two J109)

Postage is $3 for registered airmail.
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Old 30th April 2007, 02:19 PM   #2
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Old 30th April 2007, 07:22 PM   #3
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That's more than brand new LSK389 when ordered directly from the manufacturer
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Old 30th April 2007, 07:39 PM   #4
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by curva
That's more than brand new LSK389 when ordered directly from the manufacturer

will they send you LSJ109 ,too?

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Old 30th April 2007, 09:16 PM   #5
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Originally posted by Zen Mod
will they send you LSJ109 ,too?
Not yet
But the 389 is used in more places than the 109.
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Old 1st May 2007, 08:05 AM   #6
spencer is offline spencer  Hong Kong
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Curva,

Can you advise to all member where can we found dual fets for LSJ109 and LSK389. I think there are many member want to get new parts instead of used or obsolete parts for our projects.

Thanks.
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Old 1st May 2007, 05:14 PM   #7
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Originally posted by spencer
Curva,

Can you advise to all member where can we found dual fets for LSJ109 and LSK389. I think there are many member want to get new parts instead of used or obsolete parts for our projects.

www.linearsystems.com
LSK389 costs $3 a piece, even in rather small qualities and they have them in stock. There is no LSJ109 as of yet.

Paul Norton is a very pleasant person to deal with. His e-mail is paul_norton||at|| linears ... .com
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Old 3rd May 2007, 05:53 AM   #8
spencer is offline spencer  Hong Kong
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All sold out!
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Old 4th May 2007, 08:00 PM   #9
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Well, congratulations
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Old 6th May 2007, 03:03 AM   #10
spencer is offline spencer  Hong Kong
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Curva,

this is how I work out the cost!

$3 x 40 pcs, 20 pairs = $120. Sorting/marking labor 2hrs $20. Sorting equipment no count!

Total is $140 and hopefully you get about 10 pairs matched to within 0.5mA ( I match to 0.1 to 0.2mA). Thus each pair will cost $140 / 10 = $14 for two pcs. To match quads is even harder!

At the end you will get about 10 pcs not match but you dont want to use it cause you know it is not matched. One choice is to sell it without matching to other people or you buy another 10 pairs to match and sell ..... It is not a fun game and I can see some member is doing this for other matched parts.

Of couse we are not talking about J109 here and all K389 only.

I believe all my buyers do not think it is too much overpriced.

Thanks for all the support.
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