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Exbass17 30th November 2012 09:01 AM

Orion Colbalt 2100
Hi there im new to the forum greetings BTW to everyone.

I was wondering if someone would have any ideas where I could locate a good cross reference for a ORION COBALT 2100 MOSFET Channel OUTPUT TRANSISTORS I have on the chip # as (SMW20P10) T9412AF Any help would very much be appreciated.

Thanks Guys

Perry Babin 30th November 2012 12:38 PM

The STW20P10 is the part number. The other is a production code (possibly 12th week 1994).

THIS transistor 'may' work if you can't find the originals. It's sometimes difficult to predict whether a transistor will work in a particular circuit without testing them in it.

Exbass17 30th November 2012 12:46 PM

Thanks for the reply anychance do you know where i might beable to locate those im having a difficult time finding them online?

Exbass17 30th November 2012 01:38 PM

After alittle bit of research i somehow come acrossed the IRFP150 do you feel this would be to rugged for a SMW20P10 match?

Perry Babin 30th November 2012 08:59 PM

Locate which ones?

What do you mean by 'match'?

Exbass17 30th November 2012 10:33 PM

Im try to locate a good replacement chip for the original since i know there hard to find (SMW20P10) and pricey and i was wondering if you guys could tell me if the IRFP150 would be a good replacement for the original chip in my Cobalt 2100 circuitry i plan on just replacing them all so the values all match up which is a total of 8 of them does any one have any suggestions for me?

Perry Babin 30th November 2012 10:37 PM

Are all of the output transistors marked SMW20P10?

Exbass17 1st December 2012 08:39 PM

Yes theres a total of 8 that are marked SMW20P10 on the Channel Output side of the board i figured id replace them all if i can find a reputable chipset # to replace them all with.

Perry Babin 1st December 2012 10:13 PM

That transistor is a P-channel FET. I've never seen an amp that used all P-channel FETs in the output stage. Are you sure that there aren't 4 of those and 4 transistors marked SMWxxN10?

Exbass17 1st December 2012 10:20 PM

are you sayin on ANY car amplier on the output side of the amp there should be for a example if there was in my case 8 chips 4 would be P Channel Fet and 4 of them would have N Channel fets meaning 4 of them would have a different part number then the other 4

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