
Diotec Semiconductor
Functionally similar with matching ratings, but requires board redesign for its larger SMB package.
SL510F is a 5A, 100V Schottky rectifier in a compact SMAF package, valued for its low forward voltage. Finding a replacement requires careful attention to package size and electrical performance.
SMAF to SMB change requires layout modification.
Higher forward voltage in alternatives increases power loss.
Many 5A Schottky diodes are available from multiple vendors.
No, a direct drop-in replacement for the SL510F in the same SMAF package with equivalent or better performance is not readily available.
Source functional alternatives like the SS5200B or SK510, but plan for a board respin to accommodate the larger SMB package.
The primary risk is the physical package mismatch, as most 5A Schottky diodes use larger packages like SMB, necessitating a board redesign.

Diotec Semiconductor
Functionally similar with matching ratings, but requires board redesign for its larger SMB package.
| Feature / factor | SL510F | SS5150B | SS5200B | SK510 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMAF | DO-214AA (SMB) | DO-214AA, SMB | SMB (DO-214AA) | DO-214AA (SMB) / DO-214AA, SMB / SMB (DO-214AA) — Candidate package is larger, requires board redesign.; SS5200B: Candidate package is larger, requires board redesign.; SK510: Candidate package is larger, requires board redesign. |
| Voltage | 100V | 150V | 200V | 100V | 150V / 200V / 100V — Higher reverse voltage provides more design margin.; SS5200B: Higher reverse voltage provides more design margin.; SK510: Voltage matches but offers no extra margin. |
| Current | 5A | 5A | 5A | 5A | 5A — Average rectified current matches.; SS5200B: Average rectified current matches.; SK510: Average rectified current matches. |
| Forward Voltage | 0.65V @ 5A | 0.85V @ 5A | 0.85V @ 5A | 0.85V @ 5A | 0.85V @ 5A — Higher Vf increases power loss and heat.; SS5200B: Higher Vf increases power loss and heat.; SK510: Higher Vf increases power loss and heat. |
The best alternatives for the SL510F are Schottky diodes with at least 100V reverse voltage and 5A current. Candidates like SS5200B or SK510 are functionally similar but come in a larger SMB package, requiring board layout changes.