
Diodes Incorporated
An electrical upgrade with higher current and efficiency, but requires a new PCB layout (SMA package).
S-LMBR360FT1G is a 60V, 3A AEC-Q101 qualified Schottky rectifier in a compact SOD123FL package. Finding a direct drop-in replacement is challenging, as most alternatives with similar or better electrical ratings come in different, larger packages requiring a board redesign.
Target is SOD123FL; all candidates are larger (SMC/SMB/SMA) and require a board redesign.
For automotive applications, replacing an AEC-Q101 part with a non-qualified one requires extensive re-validation.
Some candidates have higher forward voltage (Vf), increasing power loss. Others match voltage without any safety margin.
No direct, pin-compatible replacement for S-LMBR360FT1G was found among the candidates. All options require a PCB layout change due to package differences.
Use a functional alternative like STPS5L60S-FS or SDT5A60SA-13 for improved electrical performance, but this requires a PCB redesign to accommodate the different package.
The primary risk is the package mismatch, which prevents a drop-in replacement. A secondary critical risk for automotive users is the lack of AEC-Q101 qualification in the alternatives.

Diodes Incorporated
An electrical upgrade with higher current and efficiency, but requires a new PCB layout (SMA package).
| Feature / factor | S-LMBR360FT1G | SDT5A60SA-13 | STPS5L60S-FS | UMW SS36B | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD123FL | SMA | SMC (DO-214AB) | SMB (DO-214AA) | SMA / SMC (DO-214AB) / SMB (DO-214AA) — Not a drop-in replacement for SOD123FL. Requires PCB redesign.; STPS5L60S-FS: Not a drop-in replacement for SOD123FL. Requires PCB redesign.; UMW SS36B: Not a drop-in replacement for SOD123FL. Requires PCB redesign.; SS310C: Not a drop-in replacement for SOD123FL. Requires PCB redesign. |
| Voltage | 60V | 60V | 60V | 60V | 60V / 100V — Matches target, but offers no additional safety margin.; STPS5L60S-FS: Matches target, but offers no additional safety margin.; UMW SS36B: Matches target, but offers no additional safety margin.; SS310C: Higher voltage rating provides more margin. |
| Current | 3A | 5A | 5A | 3A | 5A / 3A — Higher current rating provides more margin.; STPS5L60S-FS: Higher current rating provides more margin.; UMW SS36B: Matches target's current rating.; SS310C: Matches target's current rating. |
| Forward Voltage | 0.7V | 0.52V | 0.52V | 0.75V | 0.52V / 0.75V / Unknown — Significantly lower Vf improves efficiency and reduces power loss.; STPS5L60S-FS: Significantly lower Vf improves efficiency and reduces power loss.; UMW SS36B: Slightly higher Vf may result in minor increase in power loss.; SS310C: Vf not specified in provided data, must be verified. Likely higher than target. |
| Application | AEC-Q101 | Not specified | Not specified | Not specified | Not specified — Target is AEC-Q101 qualified; candidate is not.; STPS5L60S-FS: Target is AEC-Q101 qualified; candidate is not.; UMW SS36B: Target is AEC-Q101 qualified; candidate is not.; SS310C: Target is AEC-Q101 qualified; candidate is not. |
Electrically, STPS5L60S-FS and SDT5A60SA-13 are strong alternatives, offering higher current and better efficiency. However, both are in different packages (SMC and SMA, respectively) and require a PCB redesign.