Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
BS2
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 BST 612 evidence sources Philips Semiconductors / Valvo / Zetex smd1 TRANSISTOR HIGH2 sources SMD, High Current Amplifier, 60V 1A 1.3W | Si-P-Darl-DiManufacturer hint: Philips Semiconductors / Valvo / Zetex 2 BSP 612 evidence sources Philips Semiconductors / Siemens smd2 TRANSISTOR HIGH2 sources SMD, High Current Amplifier, 60V 1A 1.25W | Si-P-Darl-DiManufacturer hint: Philips Semiconductors / 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.