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Best Alternatives to BAT54SWT1G

Package: SC-70, SOT-323onsemiDiodes - Rectifiers - ArraysPackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 30 VCurrent - Average Rectified (Io) (per Diode): 200mA (DC)Voltage - Forward (Vf) (Max) @ If: 800 mV @ 100 mACurrent - Reverse Leakage @ Vr: 2 µA @ 25 V

Find replacements for the onsemi BAT54SWT1G, a 30V, 200mA dual series Schottky diode in a SOT-323 package. Review pin-compatible alternatives and functional upgrades.

AI replacement insight

Electrical risklow

For matched parts, check minor params like Vf and Ct.

Package risklow

SOT-323 is a standard package with consistent dimensions.

Sourcing riskmedium

Check stock and lead time for the chosen alternative.

Can it be replaced directly?

Direct replacement for BAT54SWT1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

LBAT54SWT1G for a direct match, or BAT54SWFILMY for a more robust upgrade.

Main risk

Incorrect diode configuration (e.g., common cathode/anode) is the most critical risk, leading to circuit failure.

Recommended alternatives

2
LBAT54SWT1G package
LBAT54SWT1G

LRC

Needs validationlow risk

A strong pin-to-pin candidate from LRC with matching package and key electrical ratings.

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Alternative comparison matrix

Feature / factorBAT54SWT1GLBAT54SWT1GBAT54SWFILMYAlt 3Compatibility / risk
PackageSOT-323 (SC-70)SOT-323 (SC-70)SOT-323SOT-323 (SC-70) — Package is form-fit compatible.; BAT54SWFILMY: Package is form-fit compatible.
Polarity Or Type1 Pair Series1 Pair SeriesSeries1 Pair Series — Diode configuration matches.; BAT54SWFILMY: Diode configuration matches.
Voltage30V30V40V30V / 40V — Voltage rating matches.; BAT54SWFILMY: Higher voltage rating provides more margin.
Current200mA200mA300mA200mA / 300mA — Current rating matches.; BAT54SWFILMY: Higher current rating provides more margin.
ManufactureronsemiLRC-LRC — Cross-vendor alternative.
ApplicationN/A-AEC-Q101AEC-Q101 — Automotive grade may offer higher reliability.

Application & sourcing insights

Questions & answers

Verified drop-in options for BAT54SWT1G 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.