Is there a pin-compatible replacement for B340-13-F?

Yes, several Schottky diodes like B360-13-F and B560CQ-13-F use the same 2-pin SMC package. As simple diodes, they are pin-compatible, but electrical parameters like forward voltage must be carefully reviewed.

What risks should I check before replacing B340-13-F?

The main risk is increased power loss due to higher forward voltage (Vf). The target B340-13-F has a low Vf of 0.5V; many alternatives have 0.7V or higher. This will increase heat generation and may require circuit adjustments.

B340-13-F Alternatives, Datasheet & Cross Reference | Diodes Incorporated

B340-13-F is a 40V, 3A Schottky rectifier in an SMC package. When searching for a replacement, prioritize candidates with similar or lower forward voltage (Vf) to maintain efficiency and thermal performance.

AI replacement insight

Electrical riskmedium

Higher Vf in substitutes will increase power loss (P=Vf*I), impacting efficiency and thermals.

Package risklow

All viable candidates use the same SMC package, ensuring form and fit compatibility.

Can it be replaced directly?

No perfect drop-in replacement is identified. B360-13-F is the closest functional match but has a higher forward voltage (0.7V vs 0.5V), which is a critical parameter for efficiency.

Best replacement path

Upgrade to B360-13-F for higher voltage margin, but verify thermal impact from increased forward voltage.

Main risk

Increased power dissipation and heat due to higher forward voltage (Vf) in all viable alternatives.

Recommended alternatives

A Schottky diode in the same package with a higher voltage rating (60V), but slightly higher forward voltage.

View details

Alternative comparison matrix

Feature / factor	B340-13-F	B360-13-F	B560CQ-13-F	Compatibility / risk
Package	SMC	SMC	SMC	SMC — Same package and pin count.; B560CQ-13-F: Same package and pin count.
Voltage	40V	60V	60V	60V — Higher reverse voltage provides more margin.; B560CQ-13-F: Higher reverse voltage provides more margin.
Current	3.0A	3.0A	5.0A	3.0A / 5.0A — Forward current rating is identical.; B560CQ-13-F: Higher current rating provides more margin.
Forward Voltage	0.5V	0.7V	0.70V	0.7V / 0.70V — Higher Vf increases power loss. Thermal analysis recommended.; B560CQ-13-F: Higher Vf increases power loss. Thermal analysis recommended.
Temperature	-55°C to +150°C	-55°C to +150°C	-	-55°C to +150°C — Operating temperature range is identical.
Application	Commercial	-	AEC-Q101	AEC-Q101 — Automotive qualification may be unnecessary.

Application & sourcing insights

Questions & answers

B360-13-F is a strong candidate from the same family, offering a higher voltage rating (60V) in the same package. However, its forward voltage is slightly higher (0.7V vs 0.5V), which requires thermal validation.