I have scoured the web looking for a tool to help me choose a diode based on the characteristics I need.

Sure, there are thousands of manufacturer's data sheets out there, but is there a tool where I can input forward volt drop, reverse volt rating, and current capability, suggesting a diode type that fits those criteria .....

Specifically I am looking for an axial lead diode (like a 1N400x) which has a Vf of 0.6 to 1.0V, and can handle up to 5A (peak) forward current.

I just feel like I'm scrabbling at the foothills of a mountain, surely there's a tool out there to help me select ?

 

I would go to any major electronics supplier, Digi-Key, Farnell, Mouser, Newark, etc. and use their search tool.

MUR550 shows up:
https://uk.farnell.com/on-semiconductor/mur550apfrlg/rectifier-single-520v-5a-do-201ad/dp/2774561

 

Specifically I am looking for an axial lead diode (like a 1N400x) which has a Vf of 0.6 to 1.0V, and can handle up to 5A (peak) forward current?

What is the duration of the peak, it's maximum repetition rate, the maximum continuous current, and peak reverse voltage required?

1N400x will tolerate 30A for 8.3ms, single half sine wave; 1N540x will tolerate 100A peak and 5A continuous.