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Best Alternatives to SS2040FL

Package: SOD-123FLPANJIT International Inc.DiodesReverse Voltage (Vr): 40 VForward Current (If): 2 AForward Voltage (Vf): 0.7 VOperating Temperature Range: -50 to +150 °CProduct Type: Diodes Schottky Diode

SS2040FL is a 40V, 2A Schottky rectifier in a SOD-123FL package. Key alternatives offer higher voltage or current ratings in the same package for enhanced performance and design margin.

AI replacement insight

Electrical risklow

Multiple candidates match or exceed key electrical ratings.

Package risklow

Most candidates use the same SOD-123FL package. One requires verification.

Firmware risklow

Not applicable for a discrete diode.

Can it be replaced directly?

Direct replacement for SS2040FL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Upgrade to K26 for a higher voltage rating (60V) or DSS34 for a higher current rating (3A), both in the same package.

Main risk

The main risk is ensuring the replacement's electrical characteristics, especially forward voltage and leakage current, are acceptable for the application's efficiency and thermal budget.

Recommended alternatives

4
K26 package
K26

GOODWORK

Needs validationlow risk

A form-fit-function alternate with a higher voltage rating (60V vs 40V) for increased design margin.

View details

Alternative comparison matrix

Feature / factorSS2040FLK26K24SS24FLCompatibility / risk
PackageSOD-123FLSOD-123FLSOD-123FLSOD-123FLSOD-123FL — Package matches target.; K24: Package matches target.; SS24FL: Package matches target.; DSS34: One variant matches target package; confirm correct one is sourced.
Voltage40V60V40V40V60V / 40V — Higher voltage rating provides more design margin.; K24: Voltage rating matches but has no extra margin.; SS24FL: Voltage rating matches but has no extra margin.; DSS34: Voltage rating matches but has no extra margin.
Current2A2A2A2A2A / 3A — Current rating matches target.; K24: Current rating matches target.; SS24FL: Current rating matches target.; DSS34: Higher current rating provides more design margin.
Vf0.7V0.7V @ 2A0.55V @ 2A0.55V @ 2A0.7V @ 2A / 0.55V @ 2A / 0.55V @ 3A — Forward voltage matches target, ensuring similar power loss.; K24: Lower forward voltage reduces power loss.; SS24FL: Lower forward voltage reduces power loss.; DSS34: Lower forward voltage reduces power loss.

Application & sourcing insights

Questions & answers

Verified drop-in options for SS2040FL 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.