Marking code search for "S21B", search S21B found 2 records.

Marking of electronic components, SMD Codes S21B, S21B**. LM3488MM, LM3488MMX, ic marking code.

PartNumber	Marking code	Manufacturer	Package
LM3488MM	S21B		MSOP-8,MUA08A
LM3488MMX	S21B		MUA08A