We’ve had a few questions come in from people looking for replacements to the NTE5815 rectifier diode. This component is rated for 600V DC reverse voltage and 6A avg rectified current. The best option that I came across in my search was part number P600J-E3/54GICT-ND, made by Vishay. This meets the relevant electrical specifications and upgrades the original temperature range and forward voltage, with a device package that should make it a drop-in replacement for most cases.
As always, please review the specifications and datasheet for this part before purchasing it for use in your application. Hope this helps!
