1500 W peak pulse in a DO-201AA axial package
The 1.5KE350-E3/54: The single unidirectional channel handles a 3 A peak pulse current, making it a fit for transient suppression on DC bus or high-voltage supply rails in general-purpose equipment.
Obsolete — sourcing through independent channels
Vishay lists the 1.5KE350-/54 as obsolete.
Package and temperature envelope
The wide temperature range suits it for environments where ambient heat or self-heating from repetitive transients is a factor, such as industrial power supplies or motor-drive snubber circuits.