Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
H12
Possible components matching this marking.A marking is not a guaranteed identification by itself.
2possible components
LOWambiguity level
Filters2 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
2 possible components
Results are ordered by the available marking evidence.
1 SM-1 XH122 evidence sources Unknown manufacturer (ORG) axial1 DIODE HIGH2 sources Gleichrichter, S | Si-DiManufacturer hint: Unknown manufacturer (ORG) 2 2SJ 1852 evidence sources NEC (Nippon Electric Company) / NEC smd2 FET HIGH2 sources SMD, High Speed Switch, 50V 0.1A 0.2W | MOS P-enhManufacturer hint: NEC (Nippon Electric Company) / NEC
Safe identification
How to verify this result
Check the official datasheet for pinout, voltage, current and thermal ratings—not only the marking.
Do not treat a short marking, a low-confidence candidate or a family match as a drop-in replacement.