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Best Alternatives to BAT30KFILM

Package: SC-79, SOD-523STMicroelectronicsDiodes - Rectifiers - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 30 VCurrent - Average Rectified (Io): 300mAVoltage - Forward (Vf) (Max) @ If: 530 mV @ 300 mACurrent - Reverse Leakage @ Vr: 5 µA @ 30 V

BAT30KFILM is a 30V, 300mA Schottky diode from STMicroelectronics in a compact SOD-523 package. It is optimized for low forward voltage and high-speed switching in a wide range of applications.

AI replacement insight

Electrical riskmedium

Key parameters like Vf and Ct vary between candidates, impacting performance.

Package risklow

All reviewed candidates use the same SOD-523 package.

Can it be replaced directly?

Direct replacement for BAT30KFILM should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BAT54KFILM offers a similar profile from the same manufacturer, but its higher forward voltage must be evaluated.

Main risk

Forward voltage (Vf) and capacitance (Ct) mismatches can affect circuit efficiency and high-frequency performance.

Recommended alternatives

2
BAT54KFILM package
BAT54KFILM

STMicroelectronics

Needs validationmedium risk

A pin-compatible alternative from the same manufacturer with a higher voltage rating but also higher forward voltage.

View details

Alternative comparison matrix

Feature / factorBAT30KFILMBAT54KFILMB1040XAlt 3Compatibility / risk
PackageSOD-523SOD-523SOD-523SOD-523 — Package matches.; B1040X: Package matches.
Voltage30V40V40V40V — Higher voltage rating provides more margin.; B1040X: Higher voltage rating.
Current300mA300mA1.0A300mA / 1.0A — Current rating matches.; B1040X: Higher current rating provides significant margin.
Forward Voltage~400mV @ 100mA900mV @ 100mA-900mV @ 100mA — Significantly higher Vf may increase power loss.
Capacitance14pF7pF-7pF — Lower capacitance may improve switching speed.
Temperatureto 150°C--40°C to +125°C-40°C to +125°C — Lower maximum operating temperature.

Application & sourcing insights

Questions & answers

Verified drop-in options for BAT30KFILM 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.