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Best Alternatives to SS56C

Package: DO-214AB (SMC)MDD(Microdiode Semiconductor)DiodesReverse Voltage (Vr): 60 VForward Current (If): 5 AForward Voltage (Vf): 0.70 V @ 5 AReverse Leakage Current (Ir): 1 mA @ 60 VPeak Forward Surge Current (Ifsm): 175 A

SS56C is a 60V, 5A SMC Schottky rectifier. Alternatives must preserve rectifier function, current rating, voltage margin, and polarity.

AI replacement insight

Electrical riskhigh

Only kept option is 3A vs 5A.

Package riskmedium

SMC matches, pinout is unverified.

Firmware risklow

Passive diode has no firmware.

Sourcing riskmedium

Candidate lifecycle is not stated.

Can it be replaced directly?

Direct replacement for SS56C should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Review Schottky rectifiers in SMC rated at least 60V and 5A.

Main risk

Lower current or non-Schottky parts can overheat or reduce efficiency.

Recommended alternatives

1
VS-30BQ100-M3 package
VS-30BQ100-M3

VISHAY

Needs validationhigh risk

VS-30BQ100-M3 is a Schottky SMC option with higher voltage but lower current.

View details

Alternative comparison matrix

Feature / factorSS56CVS-30BQ100-M3Alt 2Alt 3Compatibility / risk
PackageSMCSMCSMC — same case name
Pinout2-pin rectifier2-pin SMC2-pin SMC — pin roles not verified
Voltage60V100V100V — higher Vrrm
Current5A3A3A — lower average current
Temperature-55 to 150C-55 to 175C-55 to 175C — wider range

Application & sourcing insights

Questions & answers

Verified drop-in options for SS56C 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.