# RECTIFIERS - UES801/UES802/UES803 & BYW78 Series

## Features
- High Continuous Current Rating (50A - 70A)
- Very Low Forward Voltage
- Very Fast Switching Speeds
- High Surge Capability
- Low Thermal Resistance
- DO-5 Package



## Description
· Designed for operation in power switching circuits at frequencies of at least 20kHz.



## Absolute Maximum Ratings
· Peak Inverse Voltage (V): 50V, 100V, 150V (varies by model)
· Repetitive Peak Inverse Voltage (V): 50V, 100V, 150V (varies by model)
· Non-Repetitive Peak Inverse Voltage (V): 50V, 100V, 150V (varies by model)
· Maximum Average D.C. Output Current (I D): 70A, 50A (varies by model and Tc)
· Non-Repetitive Sinusoidal Surge Current (I p): 800A, 1500A (varies by model)
· Thermal Resistance (Rj/C): 0.8°C/W
· Storage Temperature Range: -55°C to +175°C
· Maximum Operating Junction Temperature (Tj): +175°C



## Electrical Specifications
· Types: UES801, UES802, UES803 & BYW78-50, BYW78-100, BYW78-150
- Maximum Reverse Voltage (V): 50V, 100V, 150V (varies by model)
- Maximum Forward Voltage (VF) at Tc = 25°C: 0.975V - 1.1V (varies by model)
- Reverse Current (I R) at Tc = 25°C: 50pA - 5mA (varies by model)
- Maximum Reverse Recovery Time (t R): 50ns - 60ns (varies by model)



## Mechanical Specifications
- Package: DO-5
- Standard Polarity
- All Metal Surfaces Plated
- Maximum Unlubricated Stud Torque: 50 kgf.cm