Zener TVS for 9V rail protection
The P6KE11AG: Its 9.4V reverse standoff voltage and 10.5V minimum breakdown voltage make it a fit for protecting 9V nominal DC rails — for example, a 9V regulated supply or a 12V rail that needs clamping before the downstream regulator sees a surge. The clamping voltage is 15.6V at the peak pulse current of 38A (8/20µs waveform), which limits the voltage seen by the protected circuit during a transient event. The junction temperature range spans -55°C to 150°C, so it can be used in outdoor telecom cabinets or industrial control panels where ambient temperatures exceed 85°C.
The part is through-hole axial, not tape-and-reel — expect tubes or cut tape. Base product number is P6KE; suffix 'AG' indicates lead-free (RoHS) finish.
Cross-reference and fit considerations
If the P6KE11AG is unavailable, a cross-reference within the same P6KE family — such as the P6KE11A (without the 'G' suffix, tin-lead finish) — shares the same electrical ratings: 9.4V standoff, 10.5V breakdown, 15.6V clamp, and 600W peak pulse. The difference is the lead finish; the 'G' suffix denotes RoHS-compliant (lead-free) plating. For new designs or replacements, verify the board's solder process compatibility before substituting.