Market Overview

Molex Introduces Next Generation Sealed Rectangular Connector (SRC) System


Molex Incorporated introduces the Sealed Rectangular Connector (SRC) System designed for high-circuit-count applications in harsh environments such as those found in agricultural machinery, construction and mining equipment. The next generation SRC system offers a rugged, sealed wire-to-panel and wire-to-wire hybrid connection system featuring MX150™ and MX150L™ terminals.

“Commercial vehicles are becoming more intelligent with increased wiring requirements and demands for hybrid technology,” says Denis O'Sullivan, global product manager, Molex. “The primary location for our system is the firewall connector, situated between the cab and the engine, but it also can replace existing circular connectors in various in-vehicle applications.”

Featuring an integral, two-way matte seal with improved retention, the new SRC system passes IP69k testing and is ideally suited for applications located in demanding environments. Additionally, the use of field-proven MX150 (control) and MX150L (power) terminal technology helps non-automotive transportation OEMs achieve significant production cost savings by eliminating the need to purchase, handle and crimp individual wire seals. Consisting seven segments (A to G) that can be either power or control segments, where one control segment consists of 12 circuits and one power segment consists of three circuits, the modular design of the SRC provides flexibility to increase circuit count up to 84 (control only) and allows for simple field repair and replacement of headers and connectors.

The Molex SRC system uses MX150 terminals with current ratings up to 18A, while the MX150L terminals are rated up to 40A. Retention greater than 400N helps ensure good mating in high-vibration environments. The SRC achieves single-handed blind mate functionality through a sliding latch with cam action. In addition, plastic stand-offs arranged within the terminal position assurance provide an anti-scooping feature that prevents damage to terminals when header and connector are mated.

For more information about the next generation sealed rectangular connector (SRC) system, please visit To receive information on other Molex products and industry solutions, please sign up for our e-nouncement newsletter at

About Molex Incorporated

Providing more than connectors, Molex delivers complete interconnect solutions for a number of markets including data communications, telecommunications, consumer electronics, industrial, automotive, medical, military and lighting. Established in 1938, the company operates 40 manufacturing locations in 16 countries. The Molex website is Follow us at, watch our videos at, connect with us at and read our blog at

Molex is a registered trademark of Molex Incorporated.

MX150 and MX150L are trademarks of Molex Incorporated.

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Christa Carroll, 630.408.9164
Molex Incorporated
Larry Wegner, 630.527.2650

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