Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
304
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 FP 3042 evidence sources Sanyo Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, DC/DC Converter (=2SD1620) | Si-NManufacturer hint: Sanyo Semiconductor 2 FDN 304 P2 evidence sources Fairchild Semiconductor smd2 FET HIGH2 sources SMD, Trench®MOSFET, 20V 500mW | MOS-P-FET-eManufacturer hint: Fairchild Semiconductor
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.