
STMicroelectronics
Strong alternative with higher voltage (30V) and lower forward voltage for better efficiency.
The B220A-13-F is a 20V, 2A AEC-Q101 qualified Schottky diode in an SMA package, used for high-efficiency rectification. Several alternatives exist with similar or upgraded ratings for general-purpose applications.
Check forward voltage (Vf) and reverse leakage (Ir) to ensure they meet system power and thermal budgets.
Candidates use the same SMA package, but verifying the specific datasheet footprint is always recommended.
Target is AEC-Q101 qualified; most alternatives are not, which is critical for automotive applications.
Direct replacement for B220A-13-F should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Upgrade to STPS2L30A for better voltage headroom and lower forward voltage, improving efficiency.
The primary risk is an increased forward voltage (Vf) with some alternatives, which can increase power loss and component temperature.

STMicroelectronics
Strong alternative with higher voltage (30V) and lower forward voltage for better efficiency.
| Feature / factor | B220A-13-F | STPS2L30A | STPS2L60A | SS56 SMA | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMA | SMA | SMA (DO-214AC) | SMA (DO-214AC) | SMA / SMA (DO-214AC) — Package matches, pinout is likely identical for 2-pin SMA.; STPS2L60A: Package matches, pinout is likely identical.; SS56 SMA: Package matches target. |
| Voltage | 20V | 30V | 60V | 60V | 30V / 60V — Higher voltage rating provides more design margin.; STPS2L60A: Significantly higher voltage rating provides more margin.; SS56 SMA: Higher voltage rating. |
| Current | 2A | 2A | 2A | 5A | 2A / 5A — Forward current rating matches.; STPS2L60A: Forward current rating matches.; SS56 SMA: Higher current rating provides significant overhead. |
| Vf - Forward Voltage | 0.50V | 0.375V | 0.55V | 0.65V @ 5A | 0.375V / 0.55V / 0.65V @ 5A — Lower forward voltage improves efficiency.; STPS2L60A: Slightly higher forward voltage, may slightly increase power loss.; SS56 SMA: Vf at 2A is not specified and must be verified from datasheet curves. |
| Qualification | AEC-Q101 | Not AEC-Q101 | - | - | Not AEC-Q101 — Target is AEC-Q101 qualified, candidate is not specified. |
Verified drop-in options for B220A-13-F 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.