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Nano-Fit Connector System

Wire-to-Board

Nano-Fit Connectors

Nano-Fit Connectors provide a compact, high-performance solution for miniature power applications. Designed for space efficiency, these connectors ensure superior electrical integrity and reliability through isolated contacts that help prevent contact stubbing. With high-current-carrying capabilities, and offered in various configurations, with multiple plating and color-coding/keying options, these connectors are ideal for precise, space-constrained electronic designs while delivering the highest current compared to similar sized connectors.

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Pitch Current Wire Gauge Operating Temperature
2.50mm Up to 8.0A 26 to 20 AWG -40 to +125°C

PCB Headers

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Nano-Fit Header

Receptacle Housings

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Nano-Fit Receptacle Housing

Plug Housings

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Nano-Fit Plug Housing

Crimp Terminals

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Nano-Fit Crimp Terminal

Connector Accessories

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Nano-Fit TPA Accessory

Cable Assemblies

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Nano-Fit Cable Assembly

Features and Benefits

With the rapid growth of electronic miniaturization, consumers increasingly demand more power in smaller components. Leveraging an 8.0A current rating in a compact design, Nano-Fit Connectors are a top choice for space savings in electronic designs. These products feature multiple colored and mechanically keyed options, ultra-low mating force terminals and blind-mating interface (BMI) that help prevent costly connector mating mishaps. As a result, Nano-Fit products simplify the assembly process to accelerate production and enhance overall efficiency.

Additional design features such as terminal position assurance (TPA) and connector position assurance (CPA), enhance the accuracy of the assembly process through secure mating. To ensure reliable electrical performance, Nano-Fit Connectors are engineered to provide versatile solutions that effectively address and help prevent common mating issues, while supporting high current in a small package. This combined functionality makes these connectors a preferred solution for engineers and designers seeking efficient, high-performance connectivity in miniature power applications.

Exceptional Space Savings

Electronic miniaturization is a fast-growing trend, as consumers demand more power in smaller components. Nano-Fit Connectors deliver significant space savings, as they have the smallest pitch size (2.50mm) in the Fit product family. These connectors also support up to 8.0A of current, handling more power in a small package than competitors’ solutions that are limited to 5.0A.

Nano-Fit Connector System

Ease of Assembly

Nano-Fit Connectors offer BMI capabilities, multiple mechanical keying and color-coded options, and 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. An ergonomic latch is also offered, requiring less force to depress when unmating. Fully isolated contacts reduce the risk of misalignment and simplify the mating process.

Nano-Fit PCB Header

Secure Mating

Nano-Fit Connectors offer positive-lock housing with an anti-snag design for secure connections. Also, terminal position assurance (TPA), an audible click and wire snags that protect the latch from damage help ensure mated connector assemblies will not accidentally disengage.

Nano-Fit Receptacle Housing

Allows same-circuit, multiple-connector use with virtually no chance of cross mating; provides visual indication of the properly mated connector, for faster assembly
There are multiple mechanical keying and color-coded options for operational safety and efficient assembly.

Reduces operator fatigue and improves assembly compliance for high-circuit applications
Nano-Fit Connectors have an ultra-low mate force terminal.

Improves support for UL1569/1007 HVAC and appliance applications
A 20 AWG option provides larger housing openings to improve wire termination and insulation fit, helping avoid terminal backout issues.

Ensures mated connector assemblies will not accidentally disengage
The TPA and CPA features reduce assembly errors and ensure terminals are fully seated and will not back out.

Enables operators to mate connectors in hard-to-reach areas without a visual
Nano-Fit Connectors have a BMI option.

Protects against potential damage of terminals during handling and mating
These connectors have fully isolated terminals.

Meets USCAR2 specifications for shock and vibration
Nano-Fit Connectors are suitable for use in automotive applications (not suitable for safety or on-engine applications).

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Molex Nano-Fit Power Connectors

Designed as a compact package with an 8.0A current rating, Nano-Fit Connectors offer a high-performance solution for power and signal applications, ensuring exceptional efficiency and superior electrical integrity. These connectors feature a variety of configurations and plating options, color-coded and mechanically keyed designs for easy assembly, and positive-lock housing with anti-snag design, TPA and CPA for secure mating. These key features are combined to enhance reliability and efficiency to the levels needed in a multitude of high-circuit applications.

Molex Low-Power and Signal, Potting-Capable, Vertical Headers

Enhance reliability with potting-capable connectors that offer comprehensive environmental protection, guarding against water, dust ingress and preventing corrosion and contamination. These vertical headers provide resistance to disturbances such as humidity, vibration and abrasion, ensuring connectors maintain proper mating retention and latching, while preventing electrical issues. With a durable encasement that shields against impact and bending, Molex's range of potting-capable low-power and signal connectors are versatile and suitable for various applications.

Molex Colored and Mechanically Keyed Connectors

Available in multiple configurations across many Molex product family lines, colored and mechanically keyed connectors offer faster assembly, and help prevent connector mismating and cross mating. The result is enhanced efficiency and accuracy across several diverse applications.  

Enhance Ergonomics with Low Mating Force Connectors

As modern electronics become increasingly complex, additional design considerations are required to overcome assembly challenges such as misalignment and operator fatigue. Low Mating Force (LMF) Connectors improve mating capabilities with reduced insertion force, exceptional housing pre-alignment and reduced pin stubbing, enhancing operator efficiency and safety. Molex LMF connectors provide effective solutions to address high position counts and assembly volumes, while mitigating the challenges associated with highly functional electronics.

Applications by Industry

Batteries
Infotainment systems
Interior lighting and navigation
Mirrors
Mopeds

Dryers
Microwave ovens
Ovens
Refrigerators
Washing machines
Water heaters/boilers
Vacuum cleaners

Commercial HVAC units
Residential HVAC units

Auxiliary power devices
Compute boards
GPU trays
Graphics processing units (GPUs)
Servers
Switches

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

Frequently Asked Questions

What do color coding and mechanical keying mean?

Nano-Fit Connectors are visually color coded and mechanically keyed to create a design on the molded housing to prevent mis-mating. This means that you cannot mix colors. Natural mates to natural, and black mates to black.

What are gold-flash terminals?

Gold-flash terminals have a very thin layer of gold, 0.25 micrometers. If a customer is using tin plating and has quality concerns relating to fretting corrosion or imperfections causing connectivity issues, gold terminals can improve overall environmental performance. For some customers, gold-flash plating may offer a cost-effective alternative to fully gold-plated terminals.

Does Nano-Fit Connectors have reflow capability?

Yes.

Are Nano-Fit Connector parts low halogen?

Yes.

Can you mate Nano-Fit BMI headers to standard Nano-Fit receptacles?

No, standard Nano-Fit receptacles will not mate with Nano-Fit BMI headers. There are specific series for Nano-Fit BMI headers, receptacles and plugs that only mate together. Standard Nano-Fit parts will not mate together.

Does the Nano-Fit product family have a USCAR certification?

Yes, all Fit product families are USCAR2 rated for shock and vibration only.