Re: Modern replacements / xref for deflection transistors

From: Ian Eure <ieure_at_mac.com>
Date: Sat Nov 24 2012 - 22:19:14 EST

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 Sat Nov 24 22:19:27 2012

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