What is the B540C used for?

It is commonly used in power supplies, DC-DC converters, and battery charging circuits where low forward voltage drop and high efficiency are required.

What are the key specifications of the B540C?

Key specs include a 40V maximum repetitive peak reverse voltage, 5A average forward rectified current, 0.55V forward voltage at 5A, and a 150A peak forward surge current.

What should engineers review before using the B540C?

Engineers should review the thermal derating curve (Fig. 1) and the transient thermal impedance (Fig. 6) to ensure the device operates within its junction temperature limits under specific load conditions.

What should sourcing teams check before buying B540C?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: high_availability.

B540C Datasheet, Alternatives & Specs | FUXINSEMI

AI summary

The B540C is a 5A, 40V Schottky barrier rectifier in an SMC package, ideal for high-efficiency surface-mount power applications.

Best for

DC-DC power conversion
General purpose rectification
Battery charging circuits

Avoid if

Reverse voltage exceeds 40V
Continuous current exceeds 5A without adequate heat sinking

Check before use

Thermal dissipation requirements
PCB pad layout for SMC package

Key specifications

Max Reverse Voltage: 40V
Forward Current: 5A
Forward Voltage: 0.55V
Package: SMC (DO-214AB)

Compliance & Environment

RoHS: RoHS compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Power ManagementIndustrial ControlConsumer Electronics

Datasheet

18909a6889b8af36096f609954dbbf62_2307271405_FUXINSEMI-B540C_C6807783.pdf

800 KB

Datasheet AI

CAD Models

EDA symbol, PCB footprint, and 3D model for this component. Supported tools include Altium, KiCad, Eagle, and more.

EDA Symbol

Schematic symbol for your EDA tool

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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Alternative components

Part	Details	Match
B560CFUXINSEMI	Upgrade path from the same manufacturer with a higher voltage rating (60V) and identical package.	Needs validation

Design and risk insights

Questions & answers

The B540C is a 5.0A Schottky barrier rectifier diode housed in an SMC (DO-214AB) surface-mount package, designed for efficient power rectification.

SS1060GOODWORK	Cross-vendor Schottky diode with higher voltage (60V) and current (10A) ratings in the same package.	Needs validation
SS10100LGE	Parametric alternative with higher voltage and current, but a higher forward voltage requires review.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the B540C?+×

What is the B540C used for?+×

What are the key specifications of the B540C?+×

What should engineers review before using the B540C?+×

What should sourcing teams check before buying B540C?+×