Let's talk old Darlingtons: Looking for a sub for PMD10K40

[cvanc]

I'm thinking 2N6384 but wondered what the braintrust here thought.  It's for an old 5V bench supply and is driven by a 723 regulator IC.

(yup, it's that old, I was just amazed to find the 723 is still being made!)

Datasheet for the PMD10K60 attached; it's the closest document I could find.  Thanks.

[floobydust]

I don't see much critical for a substiture pass transistor in a linear power supply, other than safe operating area.
How many amps is the 5V output? Raw DC voltage is? If you really want to dig in, a schematic helps. Otherwise, just use brute force and put in a beefy part with similar speed and enough hFE so that the LM723 is not loaded much.

2N6284 is low cost and has SOA curve to check, and 160W rated.
MJ11012 is stronger SOA and 200W rated.