On Feb 10, 1:01*pm, "petrus bitbyter"
wrote:
So I have an SMD semiconductor - most likely a transistor - in a SOT-223
package marked H72P. Found several lists of SMD semicondector codes on the
net but no H72P. Anyone knows what kind of beast I'm dealing with?

petrsu bitbyter

What I do is look for another device just like it elsewhere on the
board. Hopefully there is at least one more. From there, with a dmm
you can find out if it's a transistor, polarity, and whether it has a
resistor internal (digital transistor).