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Best Alternatives to L1SS355T1G

Package: SOD-323LRCDiodes - Rectifiers - SingleDiode Type: StandardVoltage - DC Reverse (Vr) (Max): 80 VCurrent - Average Rectified (Io): 100 mAVoltage - Forward (Vf) (Max) @ If: 1.2 V @ 100 mASpeed: Fast Recovery =< 500ns, > 200mA (Io)

L1SS355T1G is a high-speed switching diode in a SOD-323 package. Key parameters for a replacement are the 80V reverse voltage, 100mA forward current, and especially the 4ns reverse recovery time.

AI replacement insight

Electrical riskmedium

Mismatching trr or Vf can cause circuit failure. Most critical risk.

Package risklow

All viable candidates use the same SOD-323 package.

Sourcing risklow

These are common diode types available from multiple manufacturers.

Can it be replaced directly?

Direct replacement for L1SS355T1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BAS316 offers the most direct replacement path due to its close parametric match.

Main risk

The primary risk is substituting with a diode that has a slower reverse recovery time (trr), which would impact high-speed switching performance.

Recommended alternatives

3
BAS316 package
BAS316

Yangjie Technology

Needs validationlow risk

Strong parametric match for package, voltage, current, and critical reverse recovery time.

View details

Alternative comparison matrix

Feature / factorL1SS355T1GBAS316MMDL914T1GBAS321Compatibility / risk
PackageSOD-323SOD-323SOD-323SOD-323SOD-323 — Same package and pin count.; MMDL914T1G: Same package and pin count.; BAS321: Same package and pin count.
Voltage80V80V - 100V100V200V80V - 100V / 200V — Matches or exceeds target voltage.; MMDL914T1G: Higher voltage rating.; BAS321: Higher voltage rating is generally safe.
Current100mA100mA - 250mA-200mA100mA - 250mA / 200mA — Matches or exceeds target current.; BAS321: Higher current rating.
Trr4ns4ns4ns50ns4ns / 50ns — Matches critical reverse recovery time.; MMDL914T1G: Matches critical reverse recovery time.; BAS321: Significantly slower, may not work in high-speed circuits.
Diode TypeStandard-unknown-unknown — Type may be Schottky, target is Standard.

Application & sourcing insights

Questions & answers

Verified drop-in options for L1SS355T1G 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.