Molex 172253, 172258, 172256, 172264 Series

Molex 172253, 172258, 172256, 172264 Ultra-Fit power connectors

Ultra-Fit Power Connectors solving four key design challenges while offering the premium housing features of proven Mini-Fit and Micro-Fit 3.0 connector systems

Molex 172253, 172258, 172256, 172264 Series 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. Color-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.



  • Multiple mechanically keyed color-coded options
    • Allow same-circuit, multiple-connector use with virtually no chance of cross mating
    • Color coding provides visual indication of the proper mating connector — enabling faster assembly
  • 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
  • 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
  • Terminal interface with six independent points of contact (split-box terminal design)
    • Offers redundant, secondary current paths for long-term performance and reliability
  • 17% smaller footprint over similar power connectors
    • Provides PCB space savings with optimized current density
    • Allows for smaller packaging without sacrificing current carrying capabilities
  • Ultra low mating force terminal
    • Reduces operator fatigue and improves assembly compliance for high-circuit applications
  • Fully isolated terminals
    • Protect against potential damage of the header and receptacle terminals during handling and mating
  • Multi-color cable configurations with Ultra-Fit TPA Connectors available off the shelf
    • Designed to support development and production programs. Multi-color cables ensure correct connection



  • Automotive
    • Infotainment systems
    • Interior lighting, consoles, vanity mirrors
  • Consumer
    • Refrigerator
    • Washing Machine
  • Defense
    • C4ISR



Molex 172253, 172258, 172256, 172264 Series Connectors | Avnet Abacus

Display portlet menu
Contact our product specialists

Ask an expert

Have a question? Our regional technical specialists are on hand to help.

Related documents

Subscribe to our Newsletters

Researching technology for your next application design? We can help you get project ready. Get the latest design tools and solutions, Engineers' Insight and Focus magazine sent straight to your inbox.