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Best Alternatives to STPS2L30A

Package: DO-214AC, SMASTMicroelectronicsDiodes - Rectifiers - SingleSeries: -Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 30 VCurrent - Average Rectified (Io): 2AVoltage - Forward (Vf) (Max) @ If: 450 mV @ 2 A

The STPS2L30A is a 30V, 2A low-drop Schottky rectifier in an SMA package, ideal for high-efficiency power applications. While several pin-compatible alternatives exist, careful review of the forward voltage (Vf) is critical to manage power loss and thermal performance.

AI replacement insight

Electrical riskmedium

Most alternatives have higher forward voltage (Vf), increasing power loss. Reverse leakage may also differ.

Package risklow

Many alternatives are available in the same SMA package, ensuring mechanical compatibility.

Sourcing risklow

This is a common diode type with multiple manufacturers, but availability of specific Vf/Vr combinations varies.

Can it be replaced directly?

Yes, there are several pin-compatible replacements for the STPS2L30A, such as the STPS2L60A. However, no replacement is a perfect drop-in, as key electrical parameters like forward voltage will differ.

Best replacement path

STPS2L60A is the most direct upgrade path, offering double the voltage rating from the same manufacturer in the same package. It is a strong candidate for replacement.

Main risk

The primary risk when replacing the STPS2L30A is increased power loss due to a higher forward voltage (Vf) in the alternative part, which can lead to lower efficiency and thermal issues.

Recommended alternatives

4
STPS2L60A package
STPS2L60A

STMicroelectronics

Needs validationlow risk

A strong, pin-compatible alternative from the same manufacturer with a higher 60V rating. Has a slightly higher forward voltage.

View details

Alternative comparison matrix

Feature / factorSTPS2L30ASTPS2L60ASTPS2H100ASS54SMACompatibility / risk
PackageSMASMA (DO-214AC)SMASMASMA (DO-214AC) — Package is form-fit compatible.; STPS2H100A: Package is form-fit compatible.; SS54SMA: Package is form-fit compatible.; SS56 SMA: Package is form-fit compatible.
Voltage30V60V100V40V60V / 100V / 40V — Higher reverse voltage provides more design margin.; STPS2H100A: Significantly higher reverse voltage.; SS54SMA: Higher reverse voltage provides more design margin.; SS56 SMA: Higher reverse voltage provides more design margin.
Current2A2A2A5A2A / 5A — Current rating matches.; STPS2H100A: Current rating matches.; SS54SMA: Higher current rating.; SS56 SMA: Higher current rating.
Forward Voltage0.375V @ 2A0.55V0.65V0.55V @ 3A0.55V / 0.65V / 0.55V @ 3A / 0.65V @ 5A — Higher Vf will increase power loss, a common tradeoff for higher Vr.; STPS2H100A: Higher Vf will increase power loss.; SS54SMA: Higher Vf will increase power loss. Check datasheet for Vf at 2A.; SS56 SMA: Higher Vf will increase power loss. Check datasheet for Vf at 2A.
ManufacturerSTMicroelectronicsSTMicroelectronics--STMicroelectronics — Same manufacturer as target.
Temperature150°C-175°C-175°C — Higher maximum operating temperature.
Reverse Leakage200µA @ 30V---1mA @ 60V — Higher leakage current.

Application & sourcing insights

Questions & answers

The best alternative to the STPS2L30A is likely the STPS2L60A. It is made by the same manufacturer (STMicroelectronics), comes in the same SMA package, and offers a higher voltage rating (60V vs 30V) with only a moderate increase in forward voltage.