What are the primary applications for the B5819W?

It is used for general-purpose switching, power supply rectification, and consumer electronics where fast switching and low forward voltage drop are required.

What should engineers review before using the B5819W?

Engineers should review the thermal resistance (160 °C/W) and power dissipation limits (500mW) to ensure the device operates within safe temperature ranges (-55 to +125 °C).

What are the key specifications of the B5819W?

Key specs include a 40V repetitive peak reverse voltage, 1A average rectified current, and a forward voltage of 0.60V at 1A.

What is the sourcing status of the B5819W?

The B5819W is an active, widely available component with high stock levels in standard distribution channels.

What is the pinout of B5819W?

Use the B5819W datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about B5819W pinout to locate pins, power rails, and interface signals before layout.

B5819W Datasheet, Specs, Alternatives & ECAD | Microdiode Semiconductor (Shenzhen) Co., Ltd.

AI summary

The B5819W is a 40V, 1A Schottky diode in a SOD-123 package, ideal for general-purpose switching and power management.

Best for

General purpose switching
Low-voltage power rectification

Avoid if

Applications requiring >40V reverse voltage
High-power designs exceeding 500mW dissipation

Check before use

Thermal dissipation requirements
PCB footprint compatibility

Key specifications

Reverse Voltage: 40 V
Forward Current: 1 A
Forward Voltage (1A): 0.60 V
Package: SOD-123

Compliance & Environment

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

Application

Power ManagementConsumer Electronics

Datasheet

e8a571331e521a54d1830b1a4fcc9a90_2406241042_Wild-Goose-B5819W_C22368872.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for B5819W: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

Get Files

PCB Footprint

Land pattern for PCB layout

Get Files

3D Model

STEP file for mechanical design

Get Files

KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

Generate library

Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
B5819W SLMDD(Microdiode Semiconductor)	A potential pin-compatible variant from the same manufacturer with identical key electrical ratings.	Needs validation

1N5819WSlkor(SLKORMICRO Elec.)	A widely-sourced JEDEC standard equivalent for a 1A 40V Schottky diode in a SOD-123 package.	Needs validation
B5819WMDD(Microdiode Semiconductor)	A common industry part number from multiple vendors, intended to be interchangeable.	Needs validation
DSK24MDD(Microdiode Semiconductor)	An upgrade with 2A current rating and lower forward voltage in a compatible package.	Needs validation
DSS24Changzhou Starsea Elec	A potential upgrade with a 2A current rating in a compatible SOD-123 package.	Needs validation

Design and risk insights

Questions & answers

The B5819W is a Schottky barrier diode with a 40V reverse voltage rating and 1A forward current capacity, housed in a compact SOD-123 surface-mount package.

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 B5819W?+×

What are the primary applications for the B5819W?+×

What should engineers review before using the B5819W?+×

What are the key specifications of the B5819W?+×

What is the sourcing status of the B5819W?+×

What is the pinout of B5819W?+×