Molex Mini-Fit Jr Male Connector Housing 12 Way 2 Row Straight 4.2 mm Pitch 39-01-3123

Molex 39-01-3123 Mini-Fit Jr Male Connector Housing is a 12-way, 2-row straight connector housing with a 4.2 mm pitch, specifically designed for use with Mini-Fit Jr. Plug type connectors. Manufactured from durable nylon, this housing provides reliable cable mounting and robust electrical connection protection. It is engineered to accommodate currents up to 13 amperes per circuit, making it a suitable choice for high current power connector applications.

The Mini-Fit Jr series connector housings are integral components in power interconnection systems, ensuring design flexibility and secure connectivity. The housing features fully isolated terminals which guard against debris ingress and physical damage during handling or operation. Its polarization and keying features minimize the risk of mismating, ensuring proper alignment when connecting.

This connector housing also includes a positive locking mechanism that prevents accidental disconnection caused by vibration or shock, providing tactile and audible confirmation when mated. The nylon housing meets flame retardant standards UL94V-0 or UL94V-2, enhancing safety and reliability in various industrial environments.

Designed for versatility, the housing accepts standard Mini-Fit and Mini-Fit Plus crimp terminals, enabling both wire-to-wire and wire-to-board connection applications. Typical use cases include electronics manufacturing, power distribution modules, and automated industrial systems where secure and efficient power connections are critical.

Handles up to 13A current per circuit for high current applications. Fully isolated terminals protect against debris and damage. Polarization and keying prevent mismating and misalignment. Positive locking mechanism secures mating connection and prevents accidental unmating.

Provides audible click for mating confirmation. Constructed from flame retardant nylon material UL94V-0 or UL94V-2 rated. Accepts standard Mini-Fit and Mini-Fit Plus crimp terminals. Suitable for wire-to-wire and wire-to-board applications.

This connector housing is widely used in industrial electronics, electrical power modules, automotive wiring harnesses, and commercial electrical equipment. Its robust design and reliable performance make it an essential component for electrical system integration and maintenance.

Explore the full range of Connector Housings and compatible components within EnvMart to suit various industrial and commercial requirements.