The BY299 is the Fast Recovery Rectifier Diodes. The typical applications of BY299 are the rectification of medium frequencies, snubber or Bootstrap diodes Commercial grade. Mechanical Characteristics:- Terminals: Axial leads Polarity: Color band denotes cathode Cases: Molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: Axial leads, solderable per MIL- Lead: STD-202, Method 208 guaranteed Polarity: Color band denotes cathode end High temperature soldering guaranteed: 250degC/10 seconds/.375",(9.5mm) lead lengths at 5 lbs.,(2.3kg) tension Weight: 1.2 grams Specification:- SymbolParameterValueUnits VRRMPeak Repetitive Reverse Voltage800V VRMSMaximum RMS Voltage560V VDCMaximum DC Blocking Voltage800V IOAverage Rectified Output Current3A IFSMNon-Repetitive Peak Forward Surge Current150A TJOperating Junction Temperature Range 65 to +150degC TstgStorage Temperature Range 65 to +150degC