
onsemi
An excellent upgrade from the same manufacturer with higher voltage/current ratings and improved electrical characteristics.
Find suitable replacements for the onsemi BAT54XV2T1G, a 30V 200mA Schottky diode. This guide reviews alternatives, including direct upgrades and functional matches, focusing on key electrical parameters and package compatibility.
Candidates with higher capacitance or leakage can cause circuit malfunction.
All reviewed candidates use the same SOD-523 package.
Direct replacement for BAT54XV2T1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The onsemi NSR0240V2T1G is a clear upgrade path, offering better performance in the same package.
The main risk is substituting with a diode that has higher reverse leakage or capacitance, which can impact circuit performance in sensitive applications.

onsemi
An excellent upgrade from the same manufacturer with higher voltage/current ratings and improved electrical characteristics.
| Feature / factor | BAT54XV2T1G | NSR0240V2T1G | RB520S30T5G | SD103AWT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-523 | SOD-523 | SOD-523 | SOD-523 | SOD-523 — Same package ensures form-fit compatibility.; RB520S30T5G: Same package ensures form-fit compatibility.; SD103AWT: Same package ensures form-fit compatibility. |
| Voltage | 30V | 40V | 30V | 40V | 40V / 30V — Higher voltage rating provides more design margin.; RB520S30T5G: Voltage rating matches the target.; SD103AWT: Higher voltage rating provides more margin. |
| Current | 200mA | 250mA | 200mA | 350mA | 250mA / 200mA / 350mA — Higher current rating provides more design margin.; RB520S30T5G: Current rating matches the target.; SD103AWT: Higher current rating provides more margin. |
| Leakage Current | 2.0µA @ 25V | 0.2µA @ 25V | 1.0µA | - | 0.2µA @ 25V / 1.0µA — Significantly lower leakage improves efficiency.; RB520S30T5G: Lower reverse leakage is an improvement. |
| Capacitance | 7.6 pF | 4 pF | - | 50 pF | 4 pF / 50 pF — Lower capacitance is better for high-speed switching.; SD103AWT: Significantly higher capacitance may impact high-speed performance. |
| Lifecycle | Active | - | Active | - | Active — Both parts are active. |
| Reverse Recovery Time | 5.0 ns | - | - | 10 ns | 10 ns — Slower recovery time may not be suitable for fast switching. |
Verified drop-in options for BAT54XV2T1G 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.