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The onsemi 1N5401 is a general-purpose rectifier diode housed in the DO-201AD axial leaded package. It supports a maximum repetitive reverse voltage of 100 V and an average rectified forward current of 3.0 A at 75°C ambient temperature without thermal runaway. The device features a non-repetitive peak forward surge current capability of 200 A for a single half-sine wave lasting 8.3 ms. Electrical characteristics include a maximum forward voltage of 1.2 V at 3.0 A, a reverse current of 5.0 µA at rated voltage and 25°C, and a total capacitance of 30 pF at 4.0 V and 1.0 MHz. Thermal resistance from junction to ambient is typically 20 °C/W.
Verify the specific ordering suffix against official documentation to confirm packing methods such as tape and reel. Ensure compliance with authorized use policies, as this standard commercial product is not intended for life support systems or medical devices. Confirm that sourcing channels are authorized distributors to guarantee genuine parts and full traceability.
Select this component when a robust axial leaded rectifier is required for high current applications. The DO-201AD package provides mechanical stability for through-hole mounting. Consider the 100 V reverse voltage rating and 3.0 A continuous current capacity to ensure adequate margins for the target circuit design under specified operating temperatures.
This part belongs to the 1N5401–1N5408 series of general-purpose rectifiers originally developed by Fairchild Semiconductor and now managed by onsemi. The series shares identical physical dimensions and thermal characteristics, differing primarily in their maximum repetitive reverse voltage ratings which range from 100 V to 1000 V across the lineup.
Cross-reference with other manufacturers offering DO-201AD packaged rectifiers with equivalent 100 V reverse voltage and 3.0 A forward current ratings. Verify pinout compatibility and thermal resistance specifications before substitution.