Maxnetic® Connector Technology
The Maxnetic® product family is available in multiple pitches, configurations, and termination styles, enabling designers to optimize magnetic interconnect performance for a wide range of applications.
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
Connector Selection and Configuration Options
Termination Styles
Maxnetic® connectors are offered in solder tail, 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 878/879Designed 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 and Target Connectors: 878-22-00X, 879-22-00X series. |  |
.100" Pitch (2.54 mm) – Series 872–875This 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. Spring-Loaded and Target Connectors: 872-22-0XX, 873-22-0XX, 874-22-0XX,875-22-0XX series. A full product matrix for .100” products — including diagrams, part numbers, and compatibility — is available in this specification sheet. |  |
Connector Comparison
The table below summarizes the primary differences between the 4 mm and .100" pitch connector families to help designers identify the most appropriate solution for their application.
| Feature | Series 878 & 879 | Series 872 - 875 |
|---|---|---|
| Pitch | 4 mm | 2.54 mm |
| Current Rating | Up to 7.2 A per pin | Up to 5.2 A per pin |
| Positions | 2 - 6 | 2 - 10 |
| Configuration | Single Row | Single & Double Row |
| Termination | SMT, Through-Hole, Solder Cup | Solder Tail, Solder Cup |
| Typical Use | Higher Current Applications | Compact Electronic Designs |
Selecting the Right Maxnetic® Connector
The ideal connector series depends on current requirements, board space constraints, interconnect density, and termination preferences.
Use 4 mm Pitch Connectors When:
- Higher current capacity is required
- Larger conductors are needed
- Cable-to-board designs are preferred
- Maximum magnetic retention is important
Use .100" Pitch Connectors When:
- PCB space is limited
- Higher contact density is needed
- Double-row layouts are beneficial
- Compact product designs are required
Modular Flexibility
Maxnetic® connector systems support board-to-board, cable-to-board, and cable-to-cable interconnects. Designers can mix compatible spring-loaded and target connector halves, select shrouded or unshrouded housings, and choose from multiple termination styles to create application-specific connector solutions.
Assemblies
You can also explore available assemblies via the links below:
Need Help Selecting a Maxnetic® Connector?
Whether you're designing a compact portable device, rugged industrial equipment, or a custom cable assembly, Mill-Max applications engineers can help identify the right Maxnetic® configuration for your application.
Need technical help or looking for a custom design? Contact us or review our custom capabilities.