The 5.0SMDJ26A-AT/13: At 5000 W peak pulse power, this is the automotive load-dump and supply-surge class of TVS — sized to survive the high-energy transients that appear on battery and ECU power rails without cascading into downstream silicon. Derate per the thermal resistance curve in the datasheet if the layout thermal resistance is unknown.
Automotive grade and qualification for ECU deployments
AEC-Q101 qualification means the die and package passed the automotive stress sequence — humidity, temperature cycling, and surge-life testing that standard commercial TVS parts do not. For an ECU input stage or battery-line protection node, this is the minimum grade that clears most OEM procurement specs. Power line protection is listed as No — this part protects individual signal or power nodes, not a bus backbone. It belongs on a supply rail or sensor input, not across a switched power distribution line that carries continuous load current.
DO-214AB SMC footprint and reel packaging
The DO-214AB (SMC) is the standard package for 3–5 kW TVS parts — widely sourced, pin-compatible across multiple brands, and reworkable with a standard hot-air tweezer tip. The cathode band marks the polarity stripe; orientation is unambiguous on the reel and on the board. Surface-mount termination is matte-tin or equivalent — compatible with standard lead-free reflow profiles without special thermal handling.
YAGEO lists this part as Active. Quoted to order through independent distribution; availability and lot traceability confirmed at RFQ.