Is there a pin-compatible replacement for S-LMBR340FT1G?

Yes, both S-LMBR360FT1G and LMBR340FT1G are pin-compatible in the same SOD123FL package. However, they have critical differences in voltage rating, forward voltage, or automotive qualification that require engineering review.

What risks should I check before replacing S-LMBR340FT1G?

Key risks include: 1) ensuring the replacement is AEC-Q101 qualified if required, 2) evaluating the impact of any change in forward voltage (Vf) on power dissipation and thermal performance, and 3) confirming the voltage rating (Vr) meets or exceeds 40V.

S-LMBR340FT1G Alternatives, Datasheet & Cross Reference | LRC

S-LMBR340FT1G is a 3A, 40V AEC-Q101 qualified Schottky rectifier in a SOD123FL package. Finding a substitute requires matching the automotive qualification, package, and key electrical ratings like forward voltage.

AI replacement insight

Electrical riskmedium

Forward voltage mismatch in one candidate can increase power loss.

Package risklow

Package and pinout match for top candidates.

Sourcing riskhigh

Using a non-qualified part in an automotive application is a high compliance risk.

Can it be replaced directly?

No direct drop-in replacement has been identified. S-LMBR360FT1G is a potential upgrade but has a higher forward voltage, while LMBR340FT1G is an electrical match but lacks automotive qualification.

Best replacement path

For automotive use, S-LMBR360FT1G offers a higher voltage rating but requires review of its higher forward voltage. For non-automotive use, LMBR340FT1G is an electrical match.

Main risk

The main risks are using a non-automotive part (LMBR340FT1G) in a qualified system, or increased power loss from a part with higher forward voltage (S-LMBR360FT1G).

Recommended alternatives

Electrically equivalent commercial-grade version in the same package, but lacks automotive AEC-Q101 qualification.

View details

Alternative comparison matrix

Feature / factor	S-LMBR340FT1G	LMBR340FT1G	S-LMBR360FT1G	Compatibility / risk
Package	SOD123FL	SOD123FL	SOD123FL	SOD123FL — Package matches.; S-LMBR360FT1G: Package matches.
Voltage	40V	40V	60V	40V / 60V — Voltage rating matches.; S-LMBR360FT1G: Higher voltage rating provides more margin.
Current	3A	3A	3A	3A — Current rating matches.; S-LMBR360FT1G: Current rating matches.
Forward Voltage	0.5V	0.5V	0.7V	0.5V / 0.7V — Forward voltage matches.; S-LMBR360FT1G: Higher Vf increases power loss.
Application	AEC-Q101	Commercial	AEC-Q101	Commercial / AEC-Q101 — Lacks automotive qualification.; S-LMBR360FT1G: Automotive qualification matches.

Application & sourcing insights

Questions & answers

The best alternative depends on the application. S-LMBR360FT1G is an automotive-grade option with a higher voltage rating (60V), but its higher forward voltage must be evaluated. LMBR340FT1G is an electrical match for non-automotive designs.