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Best Alternatives to SS14HE

Package: 2-SMD, Flat LeadonsemiDiodes - Rectifiers - SingleSeries: -Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 40 VCurrent - Average Rectified (Io): 1AVoltage - Forward (Vf) (Max) @ If: 550 mV @ 1 A

SS14HE is a 40V, 1A Schottky diode from onsemi in a compact SOD-323HE package, ideal for automotive and high-efficiency applications. Finding a replacement involves matching electrical specs and the physical footprint.

AI replacement insight

Package riskhigh

Most alternatives are not form-fit and require a PCB redesign.

Electrical risklow

Most candidates have equal or better voltage/current, but forward voltage (Vf) may differ.

Sourcing riskmedium

While functional alternatives exist, finding another AEC-Q part in the same package may be difficult.

Can it be replaced directly?

Direct replacement for SS14HE should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is LMBR1100ET1G due to its matching SOD-323HE package. If unavailable, consider functional alternatives but be prepared for a PCB layout change.

Main risk

The primary risk is physical incompatibility, as most alternatives are in different, often larger, packages.

Recommended alternatives

3
LMBR1100ET1G package
LMBR1100ET1G

LRC

Needs validationlow risk

A potential pin-compatible replacement in the same SOD-323HE package with a higher voltage rating.

View details

Alternative comparison matrix

Feature / factorSS14HELMBR1100ET1GSTPS5L60UXBS104S14Compatibility / risk
PackageSOD-323HESOD-323HESMBSOD-123FLSOD-323HE / SMB / SOD-123FL — Package matches, enabling potential drop-in.; STPS5L60U: Much larger package requires PCB layout change.; XBS104S14: Different package requires PCB layout change.
Voltage40.0V100.0V60.0V40.0V100.0V / 60.0V / 40.0V — Higher voltage rating provides more design margin.; STPS5L60U: Higher voltage rating.; XBS104S14: Voltage rating matches.
Current1.0A1.0A5.0A1.0A1.0A / 5.0A — Average forward current matches.; STPS5L60U: Higher current rating.; XBS104S14: Current rating matches.
TypeSchottkySchottky--Schottky — Diode type matches. Catalog data had an error, corrected via ES data.
Forward Voltage0.55V @ 1A-<0.48V @ 1A0.54V @ 1A<0.48V @ 1A / 0.54V @ 1A — Lower Vf improves efficiency.; XBS104S14: Forward voltage is very similar to target.

Application & sourcing insights

Questions & answers

Verified drop-in options for SS14HE 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.