Eliminate same-circuit-size cross mating, optimize space savings and ease assembly with low mating force, high-density Ultra-Fit™ Power Connectors.

Each industry faces different power connector challenges. Failures can occur in appliances as a result of mis-mated connectors. Terminal backout or other potential assembly errors can lead to dangerous brake malfunctions in vehicles. Pervasive data growth is driving PCB makers to use more electronics in smaller spaces; sourcing small, yet power-dense, electronics is a dilemma. Ultra-Fit™ Power Connectors address these issues, solving four key design challenges while offering the premium housing features of proven Mini-Fit® and Micro-Fit 3.0™ connector systems. Colour-coded housings mitigate the risk of mis-mating. Optional TPA retainers significantly reduce terminal backout. A streamlined design that is 17% smaller than competing power connectors provides space savings, and an ultra-low mating force reduces operator fatigue when mating numerous high-circuit connectors.

Molex Ultra-Fit™ Power Connectors

Mini-Fit® connectors are part of the FiT Family connector range, designed to solve the electrical and mechanical design challenges created by the growing demand for more power in increasingly smaller packages.

Explore the full range, or request a free FiT sample kit for your application design:



Features Applications*
  • Multiple mechanically keyed color-coded options
    • Allow same-circuit, multiple-connector use with virtually no chance of cross mating
  • Colour coding provides visual indication of the proper mating connector — enabling faster assembly
    • 17% smaller footprint over similar power connectors
  • Provides PCB space savings with optimised current density
    • Allows for smaller packaging without sacrificing current carrying capabilities
  • Optional TPA (Terminal Position Assurance) retainer
    • Guarantees the terminal is fully seated in the housing to reduce terminal back-out
    • Retains terminal if main retention feature fails
  • Ultra low mating force terminal
    • Reduces operator fatigue and improves assembly compliance for high-circuit applications
  • Positive-lock housing with anti-snag design
    • Ensures mated connector assemblies will not accidentally disengage. Provides an audible click while mating
    • Protects latch from damage due to wire snags
  • Fully isolated terminals
    • Protect against potential damage of the header and receptacle terminals during handling and mating
  • Terminal interface with six independent points of contact (split-box terminal design)
    • Offers redundant, secondary current paths for long-term performance and reliability
  • Multi-colour cable configurations with Ultra-Fit™ TPA Connectors available off the shelf
    • Designed to support development and production programs. Multi-colour cables ensure correct connection
  • Aerospace and Defence
    • C4ISR
  • Automotive
    • Infotainment systems
    • Interior lighting, consoles, vanity mirrors
  • Consumer
    • Refrigerator
    • Washing Machine
  • Industrial
    • Assembly line equipment
    • Food and beverage
  • Lighting
    • Ballasts
    • Home lighting fixtures
  • Medical
    • Healthcare IT
    • Patient Monitoring
  • Telecommunications/Networking
    • Hubs
    • Servers

*This is not a definitive list of applications for this product. It represents some of the more common uses.

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