Diode HER303 (3A- High Efficiency Rectifier)

Overview

The Diode HER303 is a high-efficiency rectifier diode designed for applications demanding fast switching and low power loss. With a 3A current rating, it provides reliable rectification in power supplies, converters, and other electronic circuits where efficiency is critical. Its fast recovery time minimizes switching losses, making it an excellent choice for high-frequency operations.

Key Features

• High efficiency with low forward voltage drop
• Fast switching speed for reduced power dissipation
• 3A forward current capability
• High surge current capability
• Through-hole package for easy PCB mounting
• RoHS compliant and lead-free

Technical Specifications

• Forward Current (IF): 3.0A
• Peak Reverse Voltage (VRRM): 200V (typical for HER303 series)
• Forward Voltage (VF): ~1.0V at 3A (typical)
• Reverse Recovery Time (trr): 50ns (typical)
• Operating Temperature Range: -55°C to +150°C
• Package: DO-201AD (similar to 1N5400 series)

Applications & Use Cases

• Power supply rectification (AC-DC converters)
• Freewheeling and clamping diodes
• Polarity protection in DC circuits
• High-frequency switching power supplies
• Inverters and motor control circuits
• Battery chargers and adapters

What's Included

• 1x Diode HER303 (3A High Efficiency Rectifier)

Compatibility

• Can be used as a drop-in replacement for other 3A rectifier diodes like 1N5400 series in most applications.
• Suitable for breadboard and PCB projects.

MOKWN Recommendation

For Egyptian makers and engineers building efficient power supplies or high-frequency circuits, the HER303 offers an excellent balance of performance and cost. Its fast recovery and low forward voltage drop make it a preferred choice over standard rectifiers. We recommend stocking a few for your prototyping bench.