1N5408 Rectifier Diode, 1000V 3A, 2-Piece Pack

The 1N5408 is a workhorse rectifier diode in the 1N540x family, rated for a genuinely high 1000V reverse voltage and 3A forward current, covering power supply rectification duties that smaller, lower-voltage diodes like the common 1N4007 can't handle safely - any circuit rectifying a higher-voltage AC source, or needing real headroom against voltage spikes, benefits from this diode's substantially higher voltage rating.

Construction uses a stud-cathode configuration in a through-hole package, with a peak non-repetitive forward surge current rating of 200A, meaning the diode can tolerate a brief, much higher current spike (like the initial charging surge into a filter capacitor at power-on) without failing, even though its continuous rating is 3A. Peak reverse leakage current is rated at just 5 microamps, keeping reverse-bias power loss genuinely minimal.

Operating temperature range spans -50 to 150C, giving substantial headroom for rectifier circuits that run warm under sustained current load, a real consideration for any diode handling meaningful power in a compact power supply design.

Builders designing a power supply rectifier stage, a bridge rectifier circuit, or any project needing to convert a genuinely higher-voltage AC source to DC will find the 1N5408 a well-proven, extensively used diode for that specific higher-voltage rectification task, sold here as a convenient 2-piece pack.