Is there a pin-compatible replacement for SBR3A40SA-13?

Yes, SBRT5A50SA-13 is a potential pin-compatible replacement as it uses the identical SMA package. Other parts like B360AE-13 also match the package but require review of electrical parameters like forward voltage.

What risks should I check before replacing SBR3A40SA-13?

Key risks include differences in forward voltage (Vf), which affects power dissipation, and diode technology (SBR vs. standard Schottky), which can impact switching speed and reverse leakage. Always verify thermal performance.

SBR3A40SA-13 Alternatives, Datasheet & Cross Reference | Diodes Incorporated

Find the best alternatives for the SBR3A40SA-13, a 3A 40V Super Barrier Rectifier in an SMA package. This guide compares pin-compatible upgrades and functional alternatives to ensure your design's performance and reliability.

AI replacement insight

Electrical riskmedium

Forward voltage (Vf) and technology (SBR vs Schottky) differences require review.

Package risklow

All viable candidates use the same standard SMA package.

Sourcing risklow

Multiple alternatives exist from the same manufacturer, check distributor stock.

Can it be replaced directly?

SBRT5A50SA-13 is the closest candidate for a direct replacement, sharing the same package and technology. However, its slightly higher forward voltage should be evaluated for thermal impact.

Best replacement path

SBRT5A50SA-13 from Diodes Inc. is the best replacement path, offering an upgrade in voltage and current with the same SBR technology.

Main risk

The primary risk when substituting is an increased forward voltage (Vf), which can lead to higher power dissipation and thermal issues.

Recommended alternatives

An upgrade with higher voltage and current ratings in the same package and technology family.

View details

Alternative comparison matrix

Feature / factor	SBR3A40SA-13	SBRT5A50SA-13	B360AE-13	Compatibility / risk
Package	SMA	SMA	SMA	SMA — Same package and pin count.; B360AE-13: Same package and pin count.
Voltage	40V	50V	60V	50V / 60V — Higher voltage rating provides more margin.; B360AE-13: Higher voltage rating provides more margin.
Current	3A	5A	3A	5A / 3A — Higher current rating provides more margin.; B360AE-13: Current rating matches target.
Forward Voltage	0.50V	0.53V	0.65V	0.53V / 0.65V — Slightly higher Vf may increase power loss.; B360AE-13: Higher Vf will increase power dissipation.
Technology	SBR	Trench SBR	Schottky	Trench SBR / Schottky — Same Super Barrier Rectifier technology.; B360AE-13: Standard Schottky may have different switching/leakage vs SBR.

Application & sourcing insights

Questions & answers

The best alternative is SBRT5A50SA-13. It is an upgrade from the same manufacturer, offering higher voltage (50V) and current (5A) in the same SMA package with the same SBR technology.