What capacitors are these?

[brushlessboy16]

Hoping someone can give me a little insight.. THis little capacitor board came with my sidewinder esc in a Rc10b4... for the life of me I can not find any information on the board or even the capacitors on it, im trying to figure out if I should replace them with the caps i have lying around (25v 330uF 105c low esr).

The capacitor reads
F
7x3b
331
16

The (what I think are) resistors read
Pj7D
sx34

Pics:



Thanks, Ben



edit- holy crap my phone has an amazing camera