Maxnetic® Connector Technology

Mill-Max Innovation

Built on decades of precision-machined interconnect expertise, Maxnetic® connectors integrate Mill-Max spring-loaded pin reliability with robust magnetic coupling.

Key Design Features:

Spring-loaded and target pin construction maintains consistent, low-resistance contact over millions of cycles.
Gold-plated components ensure corrosion resistance and optimal conductivity.
Polarized neodymium magnets provide strong holding force and automatic alignment.
Self-location and zero-force mating reduce user error and mechanical stress.
Durable housing options: available in shrouded and unshrouded formats for application flexibility.

Performance Highlights:

Current ratings up to 7.2 amps per pin (4 mm series)
Contact resistance as low as 20–25 milliohms
Cycle life up to 1,000,000 cycles
Reliable operation across temperatures up to +80°C

Termination and Configuration Options

Termination Styles	Maxnetic® connectors are offered in solder cup, through-hole, and surface-mount options to suit various design requirements.
Mounting and Pitch Options	Maxnetic® connectors are available in two distinct pitch formats to suit different design and performance needs:

4 mm Pitch (0.1575”) – Series 878/879

Designed for applications requiring higher current handling, these connectors support up to 7.2 A per pin and offer pin-to-pin spacing of 4.0 mm. Available in 2 to 6 positions, they come in single row configurations with multiple termination options, including solder cup, through-hole, and surface mount (SMT). Both shrouded and non-shrouded variants are available to support board-to-board, cable-to-board, or cable-to-cable layouts.

Spring-Loaded Connectors: 878-22-00X, 879-22-00X series
Target Connectors: 878-20-00X, 879-20-00X series

Find out more about 4 mm-pitch product options.

.100" Pitch (2.54 mm) – Series 872–875

This tighter pitch option enables lower-profile interconnects, ideal for compact designs. Available in 2 to 10 positions (single row) and 4 to 10 positions (double row), these connectors are offered with solder tail or solder cup terminations. With a current rating of up to 5.2 A per pin, they provide a balanced solution for both signal and power delivery in space-constrained environments.

Optional mounting tabs help secure the connector to the PCB, distributing mechanical load away from the soldered electrical contacts and reducing strain on the pins.

.100" Pitch Maxnetic® Spring-Loaded Connectors

Spring-Loaded Connectors: 872-22-0XX, 873-22-0XX, 874-22-0XX, 875-22-0XX
Target Connectors: 872-10-0XX, 873-10-0XX, 874-10-0XX, 875-10-0XX

A full product matrix for .100” products — including diagrams, part numbers, and compatibility — is available in this specification sheet.

Modular Flexibility

Each spring-loaded connector can mate with any corresponding target connector to create board-to-board, cable-to-board, or cable-to-cable configurations.

Each connector system includes spring-loaded and target pairs, supporting reliable magnetic self-alignment and zero-force mating. Depending on application needs, designers can mix and match male/female and spring-loaded/target halves, with or without shrouds, to create the ideal interconnect setup.

You can also explore available assemblies via the links below: