Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
Y1
Possible components matching this marking.A marking is not a guaranteed identification by itself.
7possible components
HIGHambiguity level
Filters7 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
7 possible components
Results are ordered by the available marking evidence.
1 UMY 1N2 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2SA1037AK + 2SC2412K, com. Emitter | Si-PNManufacturer hint: ROHM Semiconductor 2 FMY 1A2 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2SA1037AK + 2SC2412K, com. Emitter | Si-PNManufacturer hint: ROHM Semiconductor 3 FMY 12 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, TRANSISTORS, NPN & PNP | Si-PNManufacturer hint: ROHM Semiconductor 4 EMY 12 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2SA1037AK + 2SC2412K, com. Emitter | Si-PNManufacturer hint: ROHM Semiconductor 5 BZX 88 /C 112 evidence sources Unknown manufacturer (FER) smd2 DIODE HIGH2 sources Z, 5%, SMD | Si-DiManufacturer hint: Unknown manufacturer (FER) 6 BZX 84 / C 112 evidence sources Siemens smd2 DIODE HIGH2 sources Stabi, SMD | Si-DiManufacturer hint: Siemens 7 BZV 49 /C 112 evidence sources Siemens smd1 DIODE HIGH2 sources Stabi, 5%, SMD | Si-DiManufacturer hint: Siemens
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.