A miniature switch built from digital instructions is the first public product of Atomic Machines' manufacturing system. Founder Jeff Holden introduced PrimeSwitch and the Matter Compiler on October 7, 2026, after six years of development in stealth. The company lists evaluation samples as available.
The technical pitch addresses a familiar compromise in power equipment. Mechanical relays conduct through metal contacts with low resistance, but take time to open. Semiconductor switches open quickly, while producing losses and heat during conduction, according to the company's product explanation.
PrimeSwitch uses a very small moving contact. Atomic Machines says the low mass and short travel distance let it open in 50 microseconds. Its specification lists 150 amps of continuous current and dimensions of 9.5 millimeters across by 3 millimeters high.
Those are manufacturer specifications. The material reviewed for this story does not establish independent performance testing or deployment at scale. Sample availability also differs from general commercial availability.
The company describes its Matter Compiler as a programmable manufacturing system that creates working devices from digital code. Holden says it works without molds, masks or fixtures and measures each operation so errors can be corrected during production.
The switch is aimed at power infrastructure, including AI data centers moving toward 800-volt direct-current systems. San Francisco Business Times reported that Atomic Machines has $250 million in backing. That capital supports a manufacturing platform, not just the design of one component.
For now, the concrete offering is the relay and its evaluation samples. A universal factory remains the company's ambition.
