600W bidirectional TVS — now obsolete
Diodes Incorporated has marked the P6KE56CA-T as Obsolete. The 7.8A peak pulse current rating tells you the surge it can handle at the clamping voltage — enough for secondary protection on 48V telecom or industrial DC rails where the working voltage sits below 48V. The DO-15 axial package is a through-hole footprint that has been standard for decades — easy to hand-assemble or wave-solder, but the Tape & Reel packaging means the last production lots were wound for automated insertion.
Sourcing an EOL TVS — what to expect
With the official Obsolete status, there is no last-time-buy window still open from Diodes Inc. The P6KE56CA-T now moves through independent surplus and broker channels. Any stock you find will be date-coded from the final production runs — verify the date code against the PCN timeline before committing to a BOM line that needs long-term support. No official successor part number is recorded in the lifecycle entry. If you need a drop-in replacement in the same DO-15 footprint with matching 47.8V standoff and 600W rating, the search is parametric — the P6KE56 family base number shares the same die and package across the bidirectional (CA) suffix variants, but each variant is individually EOL.