Re: Modern replacements / xref for deflection transistors

Yep, I think you have to take into account the heat disspation etc....

For the 07's / 57's ...I'm sure I was looking at MJE15030's /31's for
these... Well over rated... and also MJF's (fully insulated packages -
would be pefect if they work !!)... They were cheap enough... so you could
fit and forget for the next 30 years as very unlikely to fail !! - Can't
recall If I ever refitted a board with them though to test !!

http://www.onsemi.com/pub_link/Collateral/MJF15030-D.PDF

Can any one comment on these please ????

You have to swap the legs over though, so not a straight fit !! - heat sink
also becomes live if using the MJE ones.. but the heat sinks are
floating....

I'll be looking at some vectors next year no doubt !!

Regards, Colih

----- Original Message -----
From: "Ian Eure" <ieure@mac.com>
To: <vectorlist@vectorlist.org>
Sent: Sunday, November 25, 2012 3:19 AM
Subject: Re: VECTOR: Modern replacements / xref for deflection transistors

> On Nov 24, 2012, at 5:08 PM, Rodger Boots wrote:
>
>> MPSU07 1 watt (no heatsink), 10 watts with heatsink.
>> ZTX653 1 watt (no heatsink AT ROOM TEMPERATURE), 2.5 watts with heatsink
>> AT ROOM TEMPERATURE.
>> If the MPSU07 is being used WITHOUT a heatsink the ZTX653 WITH a heatsink
>> should work.
>> A TO-92 case part isn't going to be reliable replacing a heatsinked
>> MPSUanything.
>> Also, remember to check secondary breakdown ratings on any parts being
>> used with more that 20 volts.
>>
> Okay, so what's a good modern replacement for the Q606/Q607/Q706/Q707? I
> was going to get the ZTX653 / ZTX753 and press-on heatsinks, but it sounds
> like that may not be a good idea. Is there an equivalent in a TO-202N
> package? It looks like Bob Roberts stocks the MPSU57/MPSU07, but they're
> expensive enough that I wouldn't just buy a couple PCBs worth of parts,
> which is what I'd like to do.
>
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Received on Sun Nov 25 16:13:19 2012