Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
W2
Possible components matching this marking.A marking is not a guaranteed identification by itself.
12possible components
VERY HIGHambiguity level
Filters12 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
12 possible components
Results are ordered by the available marking evidence.
1 DSB 0102 evidence sources Sanyo Semiconductor smd2 DIODE HIGH2 sources SMD, Dual SS | Si-DiManufacturer hint: Sanyo Semiconductor 2 BZV 49 /C 0V82 evidence sources Siemens smd1 DIODE HIGH2 sources Stabi, 5%, SMD | Si-DiManufacturer hint: Siemens 3 RN 4983FS2 evidence sources Toshiba smd1 TRANSISTOR HIGH2 sources SMD,Transistor Silicon PNP/NPN Epitaxial Type, 20V 50mA 50mW | Si-P/N+RManufacturer hint: Toshiba 4 UMW 2N2 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2x 2SC2412AK, com. Base/Basis | Si-NManufacturer hint: ROHM Semiconductor 5 PESD 5V0V4UW2 evidence sources Philips Semiconductors smd2 DIODE HIGH2 sources SMD, 4x ESD protection diode, 5V | Si-DiManufacturer hint: Philips Semiconductors 6 FMW 22 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2x 2SC2412AK, com. Base/Basis | Si-NManufacturer hint: ROHM Semiconductor 7 EMW 22 evidence sources ROHM Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, 2x 2SC2412AK, com. Base/Basis | Si-NManufacturer hint: ROHM Semiconductor 8 FES 3B2 evidence sources Fagor Electronica smd1 DIODE HIGH2 sources SMD, Ultrafast Recovery Rectifier, 100V, 3A | Si-DiManufacturer hint: Fagor Electronica 9 BZX 84 / C 0V82 evidence sources Siemens smd2 DIODE HIGH2 sources Stabi, SMD | Si-DiManufacturer hint: Siemens 10 BZX 384 C2V72 evidence sources Vishay dil1 DIODE HIGH2 sources SMD, Tolerance ±5% | Z-DiManufacturer hint: Vishay 11 BZT52 C2V72 evidence sources Vishay / Taiwan Semiconductor smd1 DIODE HIGH2 sources SMD,Silicon Planar Power Zener Diode | Z-DiManufacturer hint: Vishay / Taiwan Semiconductor 12 BZT52 B2V72 evidence sources Vishay smd1 DIODE HIGH2 sources SMD,Silicon Planar Power Zener Diode | Z-DiManufacturer hint: Vishay
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.