logo
SHENZHEN JRKCONN ELECTRONICS CO.,LTD
製品
ブログ
ホーム > ブログ >
企業ブログについて Millmax Expands Rotary Connectivity With Omniball Springloaded Contacts
イベント
接触
接触: Miss. Claire Pan
ファクシミリ: +86-755-2829-5156
今接触
私達を郵送しなさい

Millmax Expands Rotary Connectivity With Omniball Springloaded Contacts

2026-10-26
Latest company news about Millmax Expands Rotary Connectivity With Omniball Springloaded Contacts

Mill-Max Manufacturing Corp. Inc. has developed the Omniball spring-loaded contact, a patent-pending connector technology that uses a gold-plated brass ball as the contact interface instead of the plunger found in conventional pogo pins. The design is intended to improve electrical and mechanical performance in connectors subject to rotation, sliding or angular misalignment.

How the Omniball contact works

The central feature is a rolling-ball interface. When the contact engages, the ball can accept axial compression while maintaining contact under lateral, rotational and angular alignment. This rolling action is designed to reduce binding, premature wear and structural failure that can affect traditional plunger-style spring pins in non-perpendicular movement.

Product range and specifications

Mill-Max has expanded the Omniball line to include surface-mount, through-hole and solder-cup termination options. The through-hole variants differ primarily in tail length, while the solder-cup model supports wire up to 20 AWG.

Part number Type Key specification
7945-1-15-20-09-14-11-0 Through-hole Tail length 0.079 inch (2 mm)
7945-2-15-20-09-14-11-0 Through-hole Tail length 0.118 inch (3 mm)
7949-0-15-20-09-14-11-0 Solder-cup Supports wire up to 20 AWG

The through-hole models are differentiated by tail length, while the solder-cup version is intended for wire-to-board connections and includes press-fit features for mounting.

Performance and reliability

Omniball contacts are designed for durability and stable electrical performance under extreme test conditions, according to the company’s specifications.

  • Maximum travel: 0.030 inch (0.762 mm)
  • Ball diameter: 0.091 inch
  • Contact resistance: 20 milliohms maximum
  • Current rating: 5.5 A at a 30°C temperature rise
  • Spring force: 55 g at mid-travel of 0.015 inch (0.381 mm)
  • Durability: tested to 1,000,000 compression cycles and more than 67 miles (108 km) of rolling at half travel

Typical applications

Because of its sliding and rotational compatibility, the Omniball contact is suited to connector environments that require movement or alignment tolerance during mating.

  • Twist-lock cable connectors
  • Smart-lens camera connectors
  • Industrial and IP-rated connectors, including quarter-turn and threaded designs
  • Docking stations, quick-connect and blind-mate applications

Frequently Asked Questions

What anti-rotation features are available on the solder-cup version of the Omniball contact?
The solder-cup version, part number 7949-0-15-20-09-14-11-0, has barb and knurl press-fit features that allow it to be pressed in from either direction. The knurl is designed to prevent rotation, and the knurled variant is intended for applications where solder-cup alignment is critical.
How should a through-hole model be selected for a given PCB thickness?
Selection depends primarily on the required tail length. The 7945-1-15-20-09-14-11-0 model has a tail length of 0.079 inch (2 mm), while the 7945-2-15-20-09-14-11-0 model has a tail length of 0.118 inch (3 mm). The choice should match PCB thickness and soldering process requirements.
Is the Omniball contact suitable for purely axial motion applications?
The contact can operate under axial compression, but it is designed to optimize sliding, rotational or angular-offset connections. For pure axial or vertical motion, conventional plunger-style spring pins are often more economical; where rotation or lateral sliding is involved, the Omniball design is intended to provide greater structural reliability.