Pls tell what are these components?

Question

Two SMD type components,both have 5pins,on body one is written "VT4",and another one is written C08 2np (the 2n is written vertically)& their symbol is "U",I think both are IC,but I could not find their datasheets ,pls tell what are these components?Thanks !!!!

Answer 1

U is the mark for Unitrode but I couldn't find anything that matched exactly. TLC082 is an 8 pin device.

Vt4 may be a saw filter see the link below.

Can you put up pictures?

Answer 2

I can't find anything on them either.  SMD devices have little room for printing, so part numbers are abbreviated.

You will have to check the schematic.

5 pins limits it to only a few parts.

relay

opto isolator

opamp

.