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1N5819-E3/54

VSH1N5819-E3/54

Vishay
Same axial DO-41 Schottky family with higher reverse-voltage rating (commonly 40 V), useful when a larger Vr margin is needed.
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Overview

The 1N5819-E3/54 is a 1.0 Amp Schottky barrier rectifier in a through-hole DO-41 axial package. It is designed for low-voltage, high-frequency rectification and polarity protection, offering a 40V maximum DC reverse voltage. This component features extremely fast switching speeds and low conduction losses compared to standard silicon rectifiers.

Why Choose This Part

The integrated guardring provides enhanced overvoltage protection and reliability. Its low forward voltage drop significantly reduces power dissipation, while the E3 suffix indicates compliance with JESD 201 class 1A whisker tests for high-reliability assemblies.

Applications

DC/DC Converters
Used as a freewheeling diode in high-frequency switching regulators to improve efficiency by reducing switching losses.
Reverse Polarity Protection
Protects battery-powered circuits from accidental reverse-voltage application with minimal voltage drop.
High Frequency Inverters
Acts as a rectifier in low-voltage inverter circuits where fast recovery and high-frequency operation are required.

Key Specifications

Speed Fast Recovery =< 500ns, > 200mA (Io)
Technology Schottky
Mounting Type Through Hole
Package / Case DO-204AL, DO-41, Axial
Capacitance @ Vr, F 110pF @ 4V, 1MHz
Supplier Device Package DO-204AL (DO-41)
Current - Reverse Leakage @ Vr 1 mA @ 40 V
Voltage - DC Reverse (Vr) (Max) 40 V
Current - Average Rectified (Io) 1A
Operating Temperature - Junction -65degC ~ 125degC
Voltage - Forward (Vf) (Max) @ If 600 mV @ 1 A

Getting Started

When prototyping, bend leads at least 3mm from the plastic body to avoid stress on the glass-to-metal seal. Use standard through-hole soldering techniques, ensuring the cathode band is correctly oriented according to your circuit schematic.

Also Consider

1N5817-E3/54 VSHVishay - Lower 20V reverse voltage rating but offers an even lower forward voltage drop for applications prioritizing efficiency over voltage margin.
1N5818-E3/54 VSHVishay - Mid-range option with a 30V reverse voltage rating and 1A average rectified current.
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