What are the primary applications for the B5819WS?

It is commonly used in low-voltage, high-frequency inverters, free-wheeling circuits, and polarity protection applications.

What should engineers review before using the B5819WS?

Engineers should review the thermal derating curve (Fig. 1) and the reverse leakage characteristics at elevated temperatures to ensure reliability in the target environment.

What are the key specifications of the B5819WS?

Key specs include a 40V maximum DC blocking voltage, 1A average forward current, 0.6V forward voltage at 1A, and a junction temperature range of -55°C to +150°C.

What are the sourcing risks for the B5819WS?

The part is currently active and widely available from multiple manufacturers, presenting low sourcing risk for standard production volumes.

What is the pinout of B5819WS?

Use the B5819WS datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about B5819WS pinout to locate pins, power rails, and interface signals before layout.

B5819WS Datasheet, Specs, Alternatives & ECAD | SMC Diode Solutions

AI summary

The B5819WS is a 40V, 1A Schottky barrier rectifier in a SOD-323 package, optimized for high-frequency, low-voltage power applications.

Best for

Polarity protection
High-frequency switching
Low-voltage power supplies

Avoid if

High-temperature environments without adequate heat sinking
Applications exceeding 40V reverse voltage

Check before use

Thermal derating at high ambient temperatures
Reverse leakage current at operating temperature

Key specifications

Max Reverse Voltage: 40 V
Average Forward Current: 1 A
Forward Voltage (1A): 0.6 V
Operating Temp: -55°C to +150°C

Compliance & Environment

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

Application

Power ManagementConsumer Electronics

Datasheet

82e7f45184c8f25e17e019990fcdfcb8_2201121530_Doeshare-B5819WS_C2931615.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for B5819WS: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
SS34AYangzhou Yangjie Electronic Technology Co.,Ltd	SS34A is a stronger-current Schottky for PCB redesigns.	Needs validation

SS34BMDD	SS34B is a 40V 3A Schottky option for redesigns.	Needs validation
SS54FMDD	SS54F matches voltage and raises current, but needs board review.	Needs validation
SS56MDD	SS56 is a higher-rated SMA Schottky for redesign use only.	Needs validation
SS56BYangzhou Yangjie Electronic Technology Co.,Ltd	SS56B is a higher-rated Schottky option but not a footprint match.	Needs validation
SS36MDD	SS36 is a higher-rated SMA Schottky, not a direct replacement.	Needs validation

Design and risk insights

Questions & answers

The B5819WS is a Schottky barrier rectifier diode designed for high-efficiency, low-voltage applications, featuring a metal-silicon junction for low forward voltage drop.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the B5819WS?+×

What are the primary applications for the B5819WS?+×

What should engineers review before using the B5819WS?+×

What are the key specifications of the B5819WS?+×

What are the sourcing risks for the B5819WS?+×

What is the pinout of B5819WS?+×