600W bidirectional clamp for a 58V rail
The P6KE68CA-B: Its 92V maximum clamping voltage at the 6.5A peak pulse current (10/1000µs waveform) defines the voltage the downstream circuitry must survive — every component on that rail needs a breakdown rating above 92V, not just the 58V standoff.
Clamping voltage and the 92V ceiling
In practice, derate this for ambient temperature above 25°C and for repetitive pulses — the DO-15 axial body dissipates heat through the leads, so PCB copper area and lead length directly affect how many pulses the part can absorb before the junction hits 175°C.
DO-15 axial form factor and board integration
Housed in the DO-204AC (DO-15) axial leaded package, this part is a through-hole device intended for wave-solder or hand-solder assembly. The axial body sits above the board — lead spacing and bend radius must follow the manufacturer's recommendation to avoid stress cracks at the glass passivation junction. The bidirectional configuration (single die, two back-to-back Zener junctions in one package) means polarity is irrelevant — install it either way across the rail.
Active production and sourcing posture
This is a current-production part, not an NRND or phase-out line.