STPS5L60S-FS
FUXINSEMI
Needs validationhigh risk
A functional alternative with higher voltage/current ratings but requires a board redesign due to its larger SMC package.
Best Alternatives to PMEG2020AEA,115
Finding a substitute for the Nexperia PMEG2020AEA,115 involves balancing its key features: a very small SOD323 package and low forward voltage. While functional alternatives exist, they typically require a board redesign due to larger packages.
AI replacement insight
Package riskhigh
Target SOD323 is much smaller than candidate SMA/SMB/SMC packages. Board redesign is mandatory.
Electrical riskmedium
Some candidates have slightly higher forward voltage (VF), which will increase power loss and heat.
Can it be replaced directly?
No direct, pin-compatible replacement was found among the candidates. All reviewed parts are in much larger packages (SMA, SMB, SMC) and are only functional alternatives requiring a PCB redesign.
Best replacement path
Search for Schottky diodes in a SOD323 package with VR >= 20V, IF >= 2A, and VF <= 0.5V. Prioritize parts from manufacturers like Nexperia, Diodes Inc., or onsemi.
Main risk
The primary risk is package incompatibility. The target's SOD323 package is significantly smaller than any of the proposed alternatives, making them physically unusable on an existing PCB.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | PMEG2020AEA,115 | STPS5L60S-FS | SX34_R1_00001 | STPS340U | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD323 (SC-76) | DO-214AB, SMC | DO-214AC (SMA) | SMB | DO-214AB, SMC / DO-214AC (SMA) / SMB — Candidate package is significantly larger, requires board redesign.; SX34_R1_00001: Candidate package is significantly larger, requires board redesign.; STPS340U: Candidate package is significantly larger, requires board redesign. |
| Voltage | 20V | 60V | 40V | 40V | 60V / 40V — Higher voltage rating provides more design margin.; SX34_R1_00001: Higher voltage rating provides more design margin.; STPS340U: Higher voltage rating provides more design margin. |
| Current | 2A | 5A | 3A | 3A | 5A / 3A — Higher current rating provides significant margin.; SX34_R1_00001: Higher current rating provides more design margin.; STPS340U: Higher current rating provides more design margin. |
| Forward Voltage | 0.45V @ 2A | 0.52V @ 5A | 0.5V | 0.57V @ 3A | 0.52V @ 5A / 0.5V / 0.57V @ 3A — VF at 2A is likely close to target's 0.45V; must verify from curves.; SX34_R1_00001: Slightly higher VF may increase conduction losses.; STPS340U: Higher VF will increase conduction losses compared to target. |
Application & sourcing insights
Questions & answers
No direct drop-in replacement was found. The best functional alternatives, like Panjit's SX34_R1_00001, offer similar electrical performance but are in much larger packages, requiring a board redesign.