- DescriptionThe 1N400x series is foundational to modern electronics, and the M1 represents its highly efficient, low-voltage surface-mount evolution. Designed for standard-frequency power routing and robust voltage blocking, the 1N4001 SMD Diode (M1) is an excellent choice for converting AC to DC and protecting sensitive components from low-voltage reverse spikes.Reliable 50V Blocking PowerWhile small signal diodes are built for speed and Schottky diodes are built for low voltage drops, the 1N4001 SMD Diode (M1) is built for dependable everyday protection. It boasts a Maximum Repetitive Peak Reverse Voltage (VRRM) of 50 Volts. This blocking capacity makes it perfect for directly rectifying low-voltage AC outputs from step-down transformers or serving as a highly resilient freewheeling diode across small DC mechanical relays, 5V/12V/24V motors, and low-voltage solenoids.Robust SMA FootprintTo bring this reliable performance to modern boards, this version is housed in an industry-standard SMA (DO-214AC) surface-mount package. The flat leads provide an excellent, large solderable surface area that easily dissipates heat during continuous 1A operation while remaining robust against physical vibration. Integrating the 1N4001 SMD Diode (M1) into your workflow is simple, as the cathode is clearly identified by the printed band, ensuring perfect alignment during automated pick-and-place assembly or manual board repairs.Key FeaturesDependable Voltage Rating: Safely blocks up to 50V, making it perfectly suited for standard low-voltage logic and power circuits.High Current Handling: Safely passes up to 1.0A of continuous forward current.Modern Footprint: The SMA surface-mount package optimizes PCB real estate while maintaining traditional through-hole reliability.Technical SpecificationsComponent Type: General Purpose Rectifier DiodeMaximum Repetitive Peak Reverse Voltage (VRRM): 50VMaximum RMS Voltage (VRMS): 35VMaximum Average Forward Current (IF(AV)): 1.0APeak Forward Surge Current (IFSM): 30A (for 8.3ms single half sine-wave)Maximum Forward Voltage Drop (VF): 1.1V at 1.0APackage Type: SMA / DO-214AC (Surface Mount)Top Marking Code: M1Ideal ApplicationsAC to DC Rectification: Building full-wave bridge rectifiers for low-voltage power supplies and stepped-down AC adapters.Inductive Load Protection: Serving as a freewheeling/flyback diode across 5V to 24V motors, contactors, and solenoids.Reverse Polarity Protection: Providing a robust barrier against backward battery or power supply insertion in low-voltage DC circuits.Electronics Repair: Replacing blown M1 diodes in commercial power adapters, custom PCBs, and small appliances.
