SDT5A60SA-13
Diodes Incorporated
Needs validationlow risk
Excellent alternative with identical ratings and improved forward voltage in the same package.
Best Alternatives to SS56 SMA
Searching for a replacement for the SS56 SMA Schottky diode? This guide reviews top alternatives, comparing key parameters like voltage, current, and package to help you find a suitable substitute.
AI replacement insight
Electrical riskmedium
Some alternatives have higher forward voltage (Vf), increasing power loss.
Package riskhigh
Some candidates have different (SMB) or ambiguous (SMC) packages, requiring layout changes or careful verification.
Can it be replaced directly?
Direct replacement for SS56 SMA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most direct replacement path is SDT5A60SA-13, which matches or improves upon all key electrical parameters in the same package.
Main risk
The main risk when selecting an alternative is a higher forward voltage (Vf), which can lead to increased power dissipation and thermal issues.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | SS56 SMA | SDT5A60SA-13 | SS56A | SS5200 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMA (DO-214AC) | SMA | SMA (DO-214AC) | SMA (DO-214AC) | SMA / SMA (DO-214AC) — Package matches target's SMA (DO-214AC).; SS56A: Package matches target.; SS5200: Package matches target.; SS58: Package matches target. |
| Voltage | 60V | 60V | 60V | 200V | 60V / 200V / 80V — Reverse voltage rating is identical.; SS56A: Reverse voltage rating is identical.; SS5200: Much higher voltage rating provides significant margin.; SS58: Higher voltage rating provides more design margin. |
| Current | 5A | 5A | 5A | 5A | 5A — Forward current rating is identical.; SS56A: Forward current rating is identical.; SS5200: Forward current rating is identical.; SS58: Forward current rating is identical. |
| Forward Voltage | 0.65V @ 5A | 0.52V @ 5A | 0.70V @ 5A | 0.85V @ 5A | 0.52V @ 5A / 0.70V @ 5A / 0.85V @ 5A — Lower Vf improves efficiency and reduces heat.; SS56A: Slightly higher Vf may increase power loss.; SS5200: Significantly higher Vf will increase power dissipation.; SS58: Significantly higher Vf will increase power dissipation. |
| Temperature | -55°C to +150°C | -55°C to +150°C | - | - | -55°C to +150°C — Operating temperature range is identical. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SS56 SMA are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.