Clamping performance for 68 V rails
The 1.5KE68CA-TP: The reverse standoff voltage is 58.1 V, so it sits across a 48 V or 60 V DC bus and stays dark until a transient pushes the line above the breakdown threshold of 64.6 V. Bidirectional construction means a single device protects both polarities — useful on AC-coupled signal lines or DC rails where the return path can swing negative during a surge event.
Through-hole DO-201AE — thermal and handling
The axial body allows the leads to be formed for through-hole PCB mounting or point-to-point wiring in high-reliability assemblies.
No power-line protection — signal and DC bus focus
The part is explicitly listed with Power Line Protection set to No, meaning it is not rated for continuous AC mains overvoltage clamping — its intended role is transient suppression on DC power buses, data lines, or low-voltage AC signal circuits where the surge is a temporary event, not a sustained fault.