Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
D1
Possible components matching this marking.A marking is not a guaranteed identification by itself.
16possible components
VERY HIGHambiguity level
Filters16 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
16 possible components
Results are ordered by the available marking evidence.
1 SST 2112 evidence sources Siliconix smd1 FET HIGH2 sources SMD | MOS N-enhManufacturer hint: Siliconix 2 IMD 1A2 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, Dual Digital Transistor | Si-N/P+RManufacturer hint: ROHM Semiconductor 3 BAW 632 evidence sources Unknown manufacturer (FER) / Texas Instruments smd2 DIODE HIGH2 sources SMD, S | Si-DiManufacturer hint: Unknown manufacturer (FER) / Texas Instruments 4 PD 3SD25802 evidence sources Unknown manufacturer (DII) smd1 DIODE HIGH2 sources SMD, SURFACE MOUNT FAST SWITCHING DIODE, 80V 250mA | Si-GlManufacturer hint: Unknown manufacturer (DII) 5 RN 2902AFS2 evidence sources Toshiba smd1 TRANSISTOR HIGH2 sources SMD,Transistor Silicon PNP Epitaxial Type, 50V 80mA 50mW | Si-P+RManufacturer hint: Toshiba 6 MMSZ 5226B2 evidence sources Taiwan Semiconductor smd1 DIODE HIGH2 sources SMD, Surface Mount Zener Diode, 3,3V 500mW | Z-DiManufacturer hint: Taiwan Semiconductor 7 2SC5277-D12 evidence sources Sanyo Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, UHF/SHF | Si-NManufacturer hint: Sanyo Semiconductor 8 MMSZ 52262 evidence sources Vishay smd1 DIODE HIGH2 sources SMD, Silicon Planar Zener Diode | Z-DiManufacturer hint: Vishay 9 MAZF 0512 evidence sources Matsushita Electric dil1 DIODE HIGH2 sources SMD, TAZ, ±5% | Si-DiManufacturer hint: Matsushita Electric 10 BC 857 AM2 evidence sources Philips Semiconductors smd3 TRANSISTOR HIGH2 sources SMD, Small Signal Amplifier, 45V 0.1A 0.25W | Si-PManufacturer hint: Philips Semiconductors 11 BZX884-C162 evidence sources Philips Semiconductors smd1 DIODE HIGH2 sources SMD, Voltage regulator diode, 16V, tolerance ±5% | Z-DiManufacturer hint: Philips Semiconductors 12 AZ23 C2V72 evidence sources AEG-Telefunken / Vishay / Taiwan Semiconductor smd2 DIODE HIGH2 sources Dual, Common Anode, ±5%, SOT-23 | Z-DiManufacturer hint: AEG-Telefunken / Vishay / Taiwan Semiconductor 13 AZ23 B2V72 evidence sources AEG-Telefunken / Vishay smd2 DIODE HIGH2 sources Dual, Common Anode, ±2%, SOT-23 | Z-DiManufacturer hint: AEG-Telefunken / Vishay 14 MMSZ 5226BS2 evidence sources Taiwan Semiconductor dil1 DIODE HIGH2 sources SMD, Surface Mount Zener Diode, 3,3V 200mW | Z-DiManufacturer hint: Taiwan Semiconductor 15 BZD27 C3V9P2 evidence sources Vishay smd1 DIODE HIGH2 sources SMD, Voltage regulator | Z-Di, ICManufacturer hint: Vishay 16 2SK 31072 evidence sources NEC (Nippon Electric Company) smd2 FET HIGH2 sources SMD, V-MOS* Logic Level | MOS N-enhManufacturer hint: NEC (Nippon Electric Company)
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.