What is the VEBO Rating of a Transistor?

The VEBO Rating of a Transistor is the maximum allowable voltage that the emitter-base junction of a transistor can handle before it becomes damaged or destroyed.

The maximum allowable voltage that a junction of a transistor can withstand is called the breakdown voltage rating.

The VEBO rating which you see in a transistor datasheet is the breakdown voltage rating for the emitter-base junction of the transistor.

Applying a voltage to the emitter-base junction exceeding this rating can destroy the transistor. So make sure to check the datasheet for the transistor in use and design the circuit so that it receives a voltage lower than this rating.