The identification of the positive and negative terminals of a surface mount diode is usually done by observing the markings on the diode casing. When the markings on the casing are severely worn, a multimeter with an ohm range can be used for identification.
SM03C SOT-23 YuFeng Microelectronics, original manufacturer of diodes, high-voltage diodes, surface mount diodes, fast recovery diodes, Schottky diodes, low voltage drop Schottky diodes, field-effect transistors, MOSFETs, MOSFET manufacturers, MOSFET production, fast recovery bridge stack, inverter rectifier bridge, rectifier bridge, ESD electrostatic tube, TSS solid-state discharge tube, TVS diode - YuFeng Microelectronics
ESD5Z3.3 SOD-523 YuFeng Microelectronics, original manufacturer of diodes, high-voltage diodes, surface mount diodes, fast recovery diodes, Schottky diodes, low voltage drop Schottky diodes, field-effect transistors, MOSFETs, MOSFET manufacturers, MOSFET production, fast recovery bridge stack, inverter rectifier bridge, rectifier bridge, ESD electrostatic tube, TSS solid-state discharge tube, TVS diode - YuFeng Microelectronics
BT169GW SOT-223 YuFeng Microelectronics, original manufacturer of diodes, high-voltage diodes, surface mount diodes, fast recovery diodes, Schottky diodes, low voltage drop Schottky diodes, field-effect transistors, MOSFETs, MOSFET manufacturers, MOSFET production, fast recovery bridge stack, inverter rectifier bridge, rectifier bridge, ESD electrostatic tube, TSS solid-state discharge tube, TVS diode - YuFeng Microelectronics
AO3400 SOT23-3L YuFeng Microelectronics, original manufacturer of diodes, high-voltage diodes, surface mount diodes, fast recovery diodes, Schottky diodes, low voltage drop Schottky diodes, field-effect transistors, MOSFETs, MOSFET manufacturers, MOSFET production, fast recovery bridge stack, inverter rectifier bridge, rectifier bridge, ESD electrostatic tube, TSS solid-state discharge tube, TVS diode - YuFeng Microelectronics
ESD1006B5V0D DFN1006 YuFeng Microelectronics, original manufacturer of diodes, high-voltage diodes, surface mount diodes, fast recovery diodes, Schottky diodes, low voltage drop Schottky diodes, field-effect transistors, MOSFETs, MOSFET manufacturers, MOSFET production, fast recovery bridge stack, inverter rectifier bridge, rectifier bridge, ESD electrostatic tube, TSS solid-state discharge tube, TVS diode - YuFeng Microelectronics