Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
B3
Possible components matching this marking.A marking is not a guaranteed identification by itself.
28possible components
VERY HIGHambiguity level
Filters28 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
28 possible components
Results are ordered by the available marking evidence.
1 1SS 3012 evidence sources Toshiba smd2 DIODE HIGH2 sources SMD, Dual SS | Si-DiManufacturer hint: Toshiba 2 1SS 2012 evidence sources Toshiba flach1 DIODE HIGH2 sources SMD, Dual SS | Si-DiManufacturer hint: Toshiba 3 1SS 1842 evidence sources Toshiba smd2 DIODE HIGH2 sources SMD, Dual SS | Si-DiManufacturer hint: Toshiba 4 1PS 3012 evidence sources Philips Semiconductors smd2 DIODE HIGH2 sources SMD, Dual high-speed switching diode | Si-DiManufacturer hint: Philips Semiconductors 5 KDS 1842 evidence sources KEC Semiconductor smd2 DIODE HIGH2 sources SMD, Dual Switching Diode, 80V 150mW | Si-DiManufacturer hint: KEC Semiconductor 6 KDS 121E2 evidence sources KEC Semiconductor smd2 DIODE HIGH2 sources SMD, Dual Switching Diode, 80V 100mW | Si-DiManufacturer hint: KEC Semiconductor 7 KDS 1212 evidence sources KEC Semiconductor smd2 DIODE HIGH2 sources SMD, Dual Switching Diode, 80V 100mW | Si-DiManufacturer hint: KEC Semiconductor 8 IMB 3(A)2 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, Dual, int. Rb=4,7kOhm | Si-PManufacturer hint: ROHM Semiconductor 9 HVC 369B2 evidence sources Hitachi / Renesas Electronics dil1 DIODE HIGH2 sources SMD VCO | Si-DiManufacturer hint: Hitachi / Renesas Electronics 10 HSC 26942 evidence sources Hitachi smd2 DIODE HIGH2 sources Dual SMD Tuner-Band-S | Si-DiManufacturer hint: Hitachi 11 SS 05302 evidence sources Unknown manufacturer (WTE) smd1 DIODE HIGH2 sources SMD,Schottky barrier rectifier, 30V 500mA 410mW | Si-DiManufacturer hint: Unknown manufacturer (WTE) 12 1SS 361F2 evidence sources Toshiba smd2 DIODE HIGH2 sources SMD, Dual, SS | Si-DiManufacturer hint: Toshiba 13 MBR 0530 (LT1,LT3)2 evidence sources Motorola smd1 DIODE HIGH2 sources SMD, Schottky | Si-DiManufacturer hint: Motorola 14 UMB 3N2 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, 2x DTA143T, Dual Digital Transistor | Si-P+RManufacturer hint: ROHM Semiconductor 15 IMB 3A2 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, 2x DTA143T, Dual Digital Transistor | Si-P+RManufacturer hint: ROHM Semiconductor 16 EMB 32 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, 2x DTA143T, Dual Digital Transistor | Si-P+RManufacturer hint: ROHM Semiconductor 17 FSS 242 evidence sources Fagor Electronica smd1 DIODE HIGH2 sources SMD, Schottky Barrier Rectifier, 40V, 2A | Si-DiManufacturer hint: Fagor Electronica 18 MMBD 717 LT12 evidence sources onsemi smd2 DIODE HIGH2 sources SMD, Dual Schottky Barrier Diode, com. Anode | Si-DiManufacturer hint: onsemi 19 MBR 05302 evidence sources Vishay smd1 DIODE HIGH2 sources SMD, Schottky Rectifier | Si-DiManufacturer hint: Vishay 20 MAZF 0392 evidence sources Matsushita Electric dil1 DIODE HIGH2 sources SMD, TAZ, ±5% | Si-DiManufacturer hint: Matsushita Electric 21 KDS 121V2 evidence sources KEC Semiconductor smd2 DIODE HIGH2 sources SMD, Dual Switching Diode, 80V 100mW | Si-DiManufacturer hint: KEC Semiconductor 22 B 32 evidence sources NEC (Nippon Electric Company) - TRANSISTOR HIGH2 sources TRANSISTORS, NPNManufacturer hint: NEC (Nippon Electric Company) 23 HSM 26942 evidence sources Hitachi / Renesas Electronics smd2 DIODE HIGH2 sources Dual,SMD Tuner-Band-S | Si-DiManufacturer hint: Hitachi / Renesas Electronics 24 2SC1621-B32 evidence sources NEC (Nippon Electric Company) smd2 TRANSISTOR HIGH2 sources SMD, S | Si-NManufacturer hint: NEC (Nippon Electric Company) 25 BZX884-C3V02 evidence sources Philips Semiconductors smd1 DIODE HIGH2 sources SMD, Voltage regulator diode, 3V, tolerance ±5% | Z-DiManufacturer hint: Philips Semiconductors 26 2SC4931-B32 evidence sources Sanyo Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, VHF/UHF | Si-NManufacturer hint: Sanyo Semiconductor 27 ASB 01302 evidence sources Unknown manufacturer (ANA) smd1 DIODE HIGH2 sources SMD, Schottky Barrier Diode, 30V, 100mA | Si-DiManufacturer hint: Unknown manufacturer (ANA) 28 1SS 3612 evidence sources Toshiba smd2 DIODE HIGH2 sources SMD, Dual, SS | Si-DiManufacturer hint: Toshiba
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.