SAN FRANCISCO — The components at the root of Northern California’s latest price-fixing case are tiny, but they’ve brought some big names to both sides of the litigation.

Plaintiffs from four firms have agreed to work together on a would-be class action against more than a dozen producers of electrolytic capacitors, electricity-storing components found by the hundreds in almost every electronic device on the market. Panasonic Corp. and Samsung Electro-Mechanics are among the defendants targeted in the litigation consolidated before U.S. District Judge James Donato of the Northern District of California.