600 W peak pulse, 70.1 V standoff — the clamp voltage is the number that protects the bus
The P6KE82CA-B: Its 70.1 V reverse standoff voltage means the protected rail can run at 70 V DC nominal without the diode conducting leakage — the device only starts clamping when the transient exceeds the 77.9 V minimum breakdown threshold. That 113 V ceiling is the figure the downstream components must survive — a 100 V-rated MOSFET on the same rail would see its drain-source exceed rating during the transient.
DO-15 axial lead — through-hole for high-surge applications
Housed in a DO-204AC (DO-15) axial-lead package, the P6KE82CA-B is a through-hole part intended for wave-solder assembly or hand insertion. The axial form factor suits point-to-point wiring on terminal strips or perforated prototyping boards where creepage distance matters more than board density. The bulk packaging means it ships loose in a bag or tube — no tape-and-reel, so it is a manual-placement part for low-volume builds or repair stock. The 600 W peak pulse capability is typical for the P6KE series, with the bidirectional channel handling both positive and negative transients on a single line.
Active — no end-of-life notice on record
Diodes Incorporated lists the P6KE82CA-B as Active. No last-time-buy or obsolescence date has been published, so the part remains available through authorized and independent distribution. The base product number P6KE82 covers the unidirectional variant; the CA suffix marks the bidirectional version, and the -B indicates bulk packaging.