Is there a pin-compatible replacement for SS310SMB?

Yes, several parts like UMW SS510B and TWGMC SS3150 use the same SMB package and are pin-compatible. However, always check electrical parameters like forward voltage before substitution.

What risks should I check before replacing SS310SMB?

The main risks are electrical. Ensure the replacement is a Schottky diode. Check that voltage and current ratings are equal or higher. Pay close attention to the forward voltage (Vf), as a higher value will increase power loss and heat.

SS310SMB Alternatives, Datasheet & Cross Reference | BORN

SS310SMB is a popular 100V, 3A Schottky rectifier in an SMB package. This page provides verified alternatives and analyzes key parametric differences to ensure a successful replacement.

AI replacement insight

Electrical risklow

Risk is low if sticking to recommended Schottky diodes and verifying forward voltage.

Package risklow

The SMB package is standardized, minimizing mechanical fit issues.

Sourcing risklow

This is a common diode type available from multiple vendors.

Can it be replaced directly?

UMW SS510B is a strong candidate for direct replacement, offering an improved 5A current rating with no performance trade-offs in voltage or forward voltage.

Best replacement path

Upgrade to UMW SS510B for a higher current rating and robust performance.

Main risk

The primary risk is substituting with a non-Schottky diode or a part with higher forward voltage (Vf), which would degrade efficiency and increase heat.

Recommended alternatives

A strong alternative in the same package with identical voltage and a higher current rating (5A).

View details

Alternative comparison matrix

Feature / factor	SS310SMB	UMW SS510B	SS3150	Compatibility / risk
Package	SMB (DO-214AA)	SMB	SMB	SMB — Package matches, ensuring form and fit.; SS3150: Package matches, ensuring form and fit.
Diode Type	Schottky	Schottky	Schottky	Schottky — Diode type matches, ensuring functional compatibility.; SS3150: Diode type matches, ensuring functional compatibility.
Voltage	100V	100V	150V	100V / 150V — Reverse voltage rating is identical.; SS3150: Higher voltage rating provides increased design margin.
Current	3A	5A	3A	5A / 3A — Higher current rating provides increased design margin.; SS3150: Current rating is identical.
Forward Voltage	0.85V @ 3A	0.85V @ 3A	0.95V @ 3A	0.85V @ 3A / 0.95V @ 3A — Forward voltage is identical at the target's rated current.; SS3150: Higher forward voltage will increase power dissipation.

Application & sourcing insights

Questions & answers

UMW SS510B is an excellent alternative, offering a higher 5A current rating in the same package with identical voltage and forward voltage characteristics, making it a robust upgrade.