Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
BS1
Possible components matching this marking.A marking is not a guaranteed identification by itself.
3possible components
MEDIUMambiguity level
Filters3 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
3 possible components
Results are ordered by the available marking evidence.
1 ZX3CDBS 1M8322 evidence sources Zetex smd1 TRANSISTOR HIGH2 sources SMD, SCHOTTKY DIODE TRANSISTOR, 20V 4.5A, 1W | Si-NManufacturer hint: Zetex 2 BST 602 evidence sources Philips Semiconductors / Valvo smd1 TRANSISTOR HIGH2 sources SMD, High Current Amplifier, 45V 1A 1.3W | Si-P-Darl-DiManufacturer hint: Philips Semiconductors / Valvo 3 BSP 602 evidence sources Philips Semiconductors / Siemens smd2 TRANSISTOR HIGH2 sources SMD, High Current Amplifier, 45V 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.