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Best Alternatives to SS310SMA

Package: SMABORNDiodes - Rectifiers - SingleDiode Type: SchottkyVoltage - DC Reverse (Vr) (Max): 100 VCurrent - Average Rectified (Io): 3 AVoltage - Forward (Vf) (Max) @ If: 0.85 V @ 3 ACurrent - Reverse Leakage @ Vr: 0.5 mA @ 100 V

SS310SMA is a common 100V, 3A Schottky diode in an SMA package. Several pin-compatible and upgraded alternatives from various manufacturers are available, offering flexibility in sourcing.

AI replacement insight

Electrical risklow

Key ratings match, but secondary parameters like Vf and Ir require datasheet review.

Package risklow

SMA (DO-214AC) is a standardized package, ensuring mechanical compatibility.

Sourcing risklow

Multiple manufacturers produce compatible parts, ensuring a robust supply chain.

Can it be replaced directly?

Direct replacement for SS310SMA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use SS310 or SS310A from other manufacturers for a direct replacement. For improved stress tolerance, consider SS320A (200V) or SS510 (5A).

Main risk

The main risk is minor variations in dynamic characteristics like forward voltage (Vf) and reverse leakage (Ir), which can affect efficiency.

Recommended alternatives

6
SS310 package
SS310

Slkor(SLKORMICRO Elec.)

Needs validationlow risk

A strong pin-to-pin alternative with matching 100V, 3A ratings and SMA package.

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Alternative comparison matrix

Feature / factorSS310SMASS310SS310ASS320Compatibility / risk
PackageSMASMA (DO-214AC)SMA (DO-214AC)DO-214AC (SMA)SMA (DO-214AC) / DO-214AC (SMA) — Package is form-fit compatible.; SS310A: Package is form-fit compatible.; SS320: Package is form-fit compatible.; SS320A: Package is form-fit compatible.
Voltage100.0V100.0V100.0V200.0V100.0V / 200.0V — Voltage rating matches.; SS310A: Voltage rating matches.; SS320: Higher voltage rating provides more margin.; SS320A: Higher voltage rating provides more margin.
Current3.0A3.0A3.0A3.0A3.0A — Current rating matches.; SS310A: Current rating matches.; SS320: Current rating matches.; SS320A: Current rating matches.
Diode TypeSchottkySchottkySchottkySchottkySchottky — Confirmed Schottky type from summary.; SS310A: Confirmed Schottky type from summary.; SS320: Confirmed Schottky type from summary.; SS320A: Confirmed Schottky type from summary.

Application & sourcing insights

Questions & answers

Verified drop-in options for SS310SMA 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.