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Best Alternatives to SS24

Package: DO-214AC, SMAMicrodiode Semiconductor (Shenzhen) Co., Ltd.Diodes - Rectifiers - SingleDiode Type: SchottkyVoltage - DC Reverse (Vr) (Max): 40 VCurrent - Average Rectified (Io): 2 AVoltage - Forward (Vf) (Max) @ If: 0.55 V @ 2 ACurrent - Reverse Leakage @ Vr: 0.1 mA @ 40 V

The SS24 is a 40V, 2A Schottky rectifier in a DO-214AC (SMA) package, commonly used in a wide range of applications. Fortunately, numerous pin-compatible alternatives and upgrades are available, offering enhanced voltage or current ratings.

AI replacement insight

Electrical risklow

Candidates have equal or better V/I ratings. Vf and Cj must be checked.

Package risklow

All recommended candidates use the same DO-214AC (SMA) package.

Sourcing risklow

Multiple alternatives from various manufacturers are available.

Can it be replaced directly?

Yes, there are several pin-compatible alternatives for the SS24. The SS26 is a popular upgrade, offering a higher 60V rating in the same package.

Best replacement path

For a direct voltage upgrade, use SS26 (60V, 2A). For a current upgrade, use SS54 (40V, 5A). For an upgrade in both, SS36 (60V, 3A) is a strong choice.

Main risk

The primary risk is a mismatch in secondary electrical parameters like forward voltage (Vf) and junction capacitance (Cj), which can affect efficiency and high-frequency performance.

Recommended alternatives

5
SS26 package
SS26

MDD

Needs validationlow risk

A Schottky diode in the same package with higher voltage (60V vs 40V) and identical current.

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Alternative comparison matrix

Feature / factorSS24SS26SS310SS36Compatibility / risk
PackageDO-214AC (SMA)DO-214AC (SMA)DO-214AC (SMA)DO-214AC (SMA)DO-214AC (SMA) — Same package and pin count.; SS310: Same package and pin count.; SS36: Same package and pin count.; SS54: Same package and pin count.
Diode TypeSchottkySchottkySchottkySchottkySchottky — Both are Schottky barrier rectifiers.; SS310: Both are Schottky barrier rectifiers.; SS36: Both are Schottky barrier rectifiers.; SS54: Both are Schottky barrier rectifiers.
Voltage40V60V100V60V60V / 100V / 40V — Higher reverse voltage provides more design margin.; SS310: Significantly higher voltage rating offers more margin.; SS36: Higher reverse voltage provides more design margin.; SS54: Same reverse voltage rating.
Current2A2A3A3A2A / 3A / 5A — Same forward current rating.; SS310: Higher forward current capability.; SS36: Higher forward current capability.; SS54: Higher forward current capability.

Application & sourcing insights

Questions & answers

SS26 is an excellent alternative, offering a higher voltage rating (60V vs 40V) with the same current and package. For higher current needs, SS54 provides 5A in the same package.