I'm in the process of repairing a TV and believe the failure is down to one positively nuked MOSFET on the main board. It's an expensive board but I know the part number of the MOSFET. The problem is that it's only available in 3000 off quantity. I'm okay with replacing the part with an exact equivalent because apparently a firmware update to the board resolves the problem once it is repaired.
I've googled how to choose MOSFET's but I'm met with terminology and equations I just don't understand, use cases I can't identify, and in this application, a solution I don't understand. Searching here I mostly find users looking to solve specific problems for their circuit. Here the circuit exists but is merely missing a known component.
So my part number is ZXMP3F30FH P-Channel MOSFET in a SOT-23 package for what it's worth. One reference I found said it's okay to replace it with a BCW72LTIG or SBCW72LTIG bipolar transistor. I'm not really interested in asking if that's appropriate because a yes or no really doesn't help me learn anything. If anyone would like to expand on the whens and whys of replacing a MOSFET with a standard transistor, I'm certainly interested however.
My main question is, if I'm looking at a datasheet and I need something that isn't going to self destruct when I power the unit on, what parameters are most important to me to look for? Should I be looking for higher or lower values for those particular parameters?