The 1.5KE68A-T: It clamps a 58.1 V reverse standoff voltage to a maximum of 92 V at 16.3 A peak pulse current, making it a fit for protecting 48 V nominal DC buses or 48 V telecom rails against transient overvoltage events. The DO-201AA (DO-27) axial-lead through-hole package suits point-to-point wiring on terminal strips or PCB layouts where a soldered-in surge suppressor is preferred over a surface-mount part for mechanical robustness in high-vibration environments.
Clamping voltage and breakdown tolerance
The minimum breakdown voltage is 64.6 V, with the reverse standoff (working voltage) at 58.1 V. No power line protection (bidirectional) is offered — this is a unidirectional device intended for DC rail clamping where polarity is fixed.
Obsolete — sourcing through independent channels
Diodes Incorporated lists the 1.5KE68A-T as obsolete.