This post explains for the semiconductor BY225.
The Part Number is BY225.
The function of this semiconductor is Silicon Bridge Rectifiers.
Manufacturers : NXP
Preview images :
Ready-for-use full-wave bridge rectifiers in a plastic encapsulation.
The bridges are intended for use in equipment supplied from a.c with r.m.s voltages up to 80V and are capable of delivering output currents up to 4,8A. […]