SS3150
MDD
Needs validationhigh risk
Functional upgrade with higher voltage/current ratings, but requires board redesign due to different package.
Best Alternatives to BAT46WH,115
Reviewing alternatives for the BAT46WH,115, a 100V, 250mA AEC-Q101 Schottky diode in a SOD123F package. Key considerations for substitutes are package compatibility and electrical ratings, as no direct drop-in replacements were found.
AI replacement insight
Package riskhigh
All candidates have a different package (e.g., SMA, SMB) requiring a PCB layout change.
Electrical risklow
Kept candidates meet or exceed the target's voltage and current ratings.
Can it be replaced directly?
No, there are no direct, pin-compatible replacements for BAT46WH,115 found in this review. All suitable electrical alternatives are in different physical packages.
Best replacement path
Search for a Schottky diode with V_R >= 100V, I_F >= 250mA in a SOD123F package. The identified functional alternatives require a board redesign.
Main risk
The primary risk is physical incompatibility. All reviewed alternatives are in larger packages (SMA, SMB, SMC) and are not drop-in replacements for the SOD123F.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | BAT46WH,115 | SS3150 | SS510 SMA | SS510SMC | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD123F | DO-214AC, SMA | DO-214AC (SMA) | DO-214AB (SMC) | DO-214AC, SMA / DO-214AC (SMA) / DO-214AB (SMC) — Not a drop-in replacement. Requires PCB redesign.; SS510 SMA: Not a drop-in replacement. Requires PCB redesign.; SS510SMC: Not a drop-in replacement. Requires PCB redesign.; SS520: Not a drop-in replacement. Requires PCB redesign. |
| Voltage | 100V | 150V | 100V | 100V | 150V / 100V / 200V — Higher voltage rating provides more design margin.; SS510 SMA: matched; SS510SMC: matched; SS520: Higher voltage rating provides more design margin. |
| Current | 0.25A | 3.0A | 5.0A | 5.0A | 3.0A / 5.0A — Significantly higher current handling capability.; SS510 SMA: Significantly higher current handling capability.; SS510SMC: Significantly higher current handling capability.; SS520: Significantly higher current handling capability. |
| Polarity Or Type | Schottky | - | - | - | Schottky — matched |
Application & sourcing insights
Questions & answers
Currently, no direct drop-in alternative has been verified. Functional alternatives like the SS510 or SS3150 series exist with similar or better electrical specs, but they come in different packages (e.g., SMA/SMB) and require a board redesign.