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On Wed, Sep 13, 2023 at 01:52 PM, Clive - G4KCM wrote:

The SOT23 package BS170 might actually be a better option as they have thicker and shorter terminations.

MMBF170 rated 417°C/W (yikes!) vs BS170's 150°C/W makes it a poor substitute, thermally.??https://www.onsemi.com/pdf/datasheet/mmbf170-d.pdf
73, Don N2VGU