Theses›Automotive & mobility›Automotive zonal power

Automotive zonal power

The car's fuse box becomes silicon, and the content gain is eaten by the harness it deletes

  • Bear
  • Not dated
  • $6B by 2035

The callThe shift is real and shipping, and that is the problem: six analog majors already make the part and give away the reference design. Closed for a newcomer.

D1D2R1R2R3C1foragainst D1D2R1R2R3C1foragainst
Fig. 1The balance. Drivers and catalysts against restraints, each block sized by its weight; catalysts hang dashed because they have not happened yet, sized by their odds. It tips toward the restraints.
  1. D1Cars become software-defined with zonal power, every load switched and protected in software, and 800V EVs need the same on the traction side, where contactors and pyrofuses are one-shot.
  2. D2About 40% of cars sit on a zonal architecture by 2034, so the socket is large and dated even if it is crowded.
  3. R1Six analog majors ship the part today, and Infineon and Flex gave away a reference design covering the whole claimed socket at CES 2026.
  4. R2The change shrinks the car's electrical bill: the merchant market is $1.1-1.8B a year at 2035 split six ways, and a heroic 5% entrant share is about $75M of revenue.
  5. R3Automotive qualification plus a 5-7 year design-in means a company founded now sees real revenue around 2033-34.
  6. C1BMW's Neue Klasse iX3 in series production with eFuses, up to 150 fuses per car becoming silicon; already fired, and Rivian's R2 carries the same architecture into 2026.Oct 2025
Rests onthe beliefs underneath
Supported by · confidence
What would prove itdated tests, open and resolved
2027today1watch 2027today1watch
Fig. 2Each ring is a dated test: dashed while open, struck through when overdue, ticked or crossed once resolved.
  1. 1Rivian's R2 shipping on the 7-controller architecture, and content per car at the majors.Dec 2026 · open
  • ·A young automotive power-semiconductor or distribution company reaching a large independent valuation or exit; that would change the view.
Expressionslisted, private, technologies
Private · 1 private company.

KKChips Automotive Electronics

Technologies
Who has already bet on itprivate rounds, from public sources

$15M raised by 1 company. Early: Little money in so far; a lead investor would set the pace.

Backed by a strategic investor: KKChips Automotive Electronics.