SDT5A60SA-13
Diodes Incorporated
Needs validationlow risk
Strong pin-compatible alternate from Diodes Inc. with matching ratings and lower power loss.
Best Alternatives to SS56A
Finding a substitute for the SS56A, a 60V 5A Schottky diode in an SMA package, involves finding a pin-compatible part with similar or better electrical characteristics. Several strong alternatives are available.
AI replacement insight
Electrical riskmedium
Many alternatives have a higher forward voltage (Vf), which can impact thermal performance. Always verify.
Package risklow
SMA (DO-214AC) is a standard package, but always confirm land patterns and dimensions from the datasheet.
Sourcing risklow
This is a common diode type with many manufacturers, reducing single-source dependency.
Can it be replaced directly?
Direct replacement for SS56A should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
SDT5A60SA-13 from Diodes Inc. is the strongest choice, offering identical ratings with improved forward voltage for better efficiency.
Main risk
The primary risk when substituting is selecting a part with a higher forward voltage (Vf), which increases power dissipation and heat.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | SS56A | SDT5A60SA-13 | SS56 SMA | SS510 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMA (DO-214AC) | SMA | SMA (DO-214AC) | SMA (DO-214AC) | SMA / SMA (DO-214AC) — Package SMA is equivalent to target's SMA (DO-214AC).; SS56 SMA: Package matches target.; SS510: Package matches, but other variants exist (e.g., SMC). Verify correct package is sourced.; SS5200: Package matches target. |
| Voltage | 60.0V | 60.0V | 60.0V | 100.0V | 60.0V / 100.0V / 200.0V — Reverse voltage matches target.; SS56 SMA: Reverse voltage matches target.; SS510: Higher voltage rating provides more design margin.; SS5200: Much higher voltage rating provides significant margin. |
| Current | 5.0A | 5.0A | 5.0A | 5.0A | 5.0A — Forward current matches target.; SS56 SMA: Forward current matches target.; SS510: Forward current matches target.; SS5200: Forward current matches target. |
| Vf | 0.70V | 0.52V | 0.65V | 0.85V | 0.52V / 0.65V / 0.85V — Lower forward voltage results in less power loss.; SS56 SMA: Slightly lower forward voltage improves efficiency.; SS510: Higher forward voltage increases power dissipation.; SS5200: Higher forward voltage increases power dissipation. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SS56A 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.