ON Semi UF4001-UF4007 Fast Rectifiers The ON Semiconductor UF4001 to UF4007 series are ultra-fast rectifiers within a DO-41 (DO-240AL) plastic package. These 1A glass-passivated junction rectifiers are reliable, general purpose components which can be used for a wide variety of applications.
Features & Benefits:
Low forward voltage drop
High surge current capability
High current capability

What is a glass-passivated junction rectifier?
These devices feature a layer of passivation glass around the diode. A glass-passivated rectifier often enables higher reverse-voltage resistance and can sometimes reduce leakage.

What is the operating junction temperature?
-65°C to +150°C

What are their maximum repetitive reverse voltages?
UF4001 - 50V
UF4002 - 100V
UF4003 - 200V
UF4004 - 400V
UF4005 - 600V
UF4006 - 800V
UF4007 - 1000V