Clamping parametrics and the protection envelope
The 1.5KE68A-E3/73: The 58.1 V reverse standoff voltage means the protected line sees no leakage up to that DC level; above it the device begins to avalanche. The junction temperature range spans -55°C to 175°C, covering most industrial and telecom environments. The DO-201AA axial package (also known as DO-27) mounts through-hole and is rated for general-purpose circuit protection — no power-line protection claim, so it is intended for signal or DC rail clamping, not mains AC.
Lifecycle and supply posture
Sourced to order against the BOM line.