Overview

The UF4007 is an ultra-fast recovery rectifier diode designed for high-voltage power conversion in a compact through-hole DO-41 package. It features a maximum reverse voltage of 1000V and an average rectified current of 1A, making it suitable for secondary rectification in switching power supplies. With a reverse recovery time of just 75ns, it significantly reduces switching losses compared to standard recovery diodes.

Why Choose This Part

The UF4007 combines a high 1000V breakdown voltage with a glass-passivated junction for enhanced reliability and high surge current capability. Its ultra-fast 75ns recovery time minimizes heat dissipation during high-frequency switching, and the axial DO-41 package allows for easy integration into standard breadboards and through-hole PCBs.

Applications

Switching Power Supplies

Used as a high-efficiency rectifier in AC-DC adapters and industrial power converters operating at high frequencies.

Freewheeling Diode

Provides a discharge path for inductive loads in relay drivers and motor control circuits to prevent voltage spikes.

Snubber Circuits

Protects power MOSFETs and IGBTs by absorbing transient energy in flyback or forward converter topologies.

Inverters

Functions as a high-voltage blocking diode or output rectifier in DC-AC inverter systems.

Key Specifications

Speed Fast Recovery =< 500ns, > 200mA (Io)

Technology Standard

Mounting Type Through Hole

Package / Case DO-204AL, DO-41, Axial

Capacitance @ Vr, F 17pF @ 4V, 1MHz

Supplier Device Package DO-41

Reverse Recovery Time (trr) 75 ns

Current - Reverse Leakage @ Vr 10 uA @ 1000 V

Voltage - DC Reverse (Vr) (Max) 1000 V

Current - Average Rectified (Io) 1A

Operating Temperature - Junction -65degC ~ 150degC

Voltage - Forward (Vf) (Max) @ If 1.7 V @ 1 A

Getting Started

When integrating this diode, ensure the cathode mark (silver band) is oriented correctly relative to the current flow. For high-frequency designs, keep lead lengths as short as possible to minimize parasitic inductance that can cause voltage ringing. Verify that the peak repetitive reverse voltage (Vrrm) does not exceed 1000V in the specific circuit application.