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Mega-Fit Connectors

Wire-to-Board

Mega-Fit Connectors

As next-generation devices require more functionality, speed and power, design engineers face the challenge of delivering increased current in space-constrained designs. Mega-Fit connectors deliver superior performance in low to mid-power applications by handling high currents up to 30A. With an innovative compact design, these robust connectors are engineered to withstand the rigorous demands of USCAR-2 standards and are ideal for challenging environments. These products also offer a diverse range of features, including terminal position assurance (TPA), connector position assurance (CPA) and potting capabilities for secure connections and long-term reliability. Offering unmatched flexibility to meet various manufacturing demands, the Mega-Fit Connector portfolio is an exceptional choice for your design needs.

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Current  Pitch Wire AWG Operating Temperature
Up to 30.0A 5.70mm 16 to 10 -40 to +105°C (tin), -40 to +120°C (gold)

PCB Headers

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Mega-Fit PCB Header

Connector Housings

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Mega-Fit Connector Housing

Cable Assemblies

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Mega-Fit Cable Assembly

Crimp Terminals

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Mega-Fit Crimp Terminal

Connector Accessories

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Mega-Fit Receptacle Backshell

Features and Benefits

Design engineers require greater power requirements with less PCB space. Compact Mega-Fit Connectors offer higher current in a small package, freeing up additional real estate on PCBs and allowing customers to have more power per linear and square millimeter.

These connectors also meet diverse design requirements by providing isolated contacts, mechanically keyed selections and potting capable headers. Blind mating interface and TPA options are also available for versatile configurations, affording engineers design flexibility to create efficient and robust electronic solutions.

To avoid improper connector engagement and operator fatigue in high-force mating processes, Mega-Fit products offer a new latch design and tangless terminals for superior retention when mating to the header. Overall, Mega-Fit Connectors ensure high performance and secure mating for electrical reliability.

Cost Efficient

Mega-Fit Connectors promote cost efficiency by featuring potting-capable headers that eliminate the need for additional sealants, reducing raw material costs. Additionally, these connectors tout robust retention features to help reduce costly device failures and offer a broad range of configurations that allow designers to avoid custom products, further enhancing overall savings and reliability.

Mega-Fit Right-Angle Header

Environmental Health and Safety Compliant

Incorporating Glow-Wire material to comply with stringent European EH&S regulations, Mega-Fit Connectors prioritize safety to ensure reliable performance under high temperatures. Additionally, the connectors use low-halogen materials that maintain flame resistance without harmful halogens, promoting both health, safety and effective thermal management.

Mega-Fit Dual-Row Receptacle with TPA

Secure Retention ​

For secure, dependable connections, Mega-Fit Connectors feature positive locks with an audible click for connector mating. More options include TPA and CPA for enhanced retention and reliability in harsh environments. These connectors are also certified for USCAR-2 shock and vibration.

Mega-Fit Single Row Connector with TPA

Allows same-circuit, multiple-connector use with a limited chance of cross mating; provides visual indication of the properly mated connector for faster assembly 
There are multiple mechanical keying and color-coded options with polarization for operational safety and efficient assembly. 

Offers a compact mid-power solution
A small pitch size allows these connectors to take up less space on the PCB and provide the power that designers require in a limited space. 

Ensures mated connector assemblies will not accidentally disengage 
The TPA feature reduces assembly errors and ensures terminals are fully seated and will not back out. These connectors also offer a CPA option for additional locking security. 

Meets USCAR-2 specifications for shock and vibration
These connectors are suitable for use in most automotive applications, except for safety or on-engine applications.

Helps prevent dust and moisture at lower costs than sealed products
Potting capable headers ensures environmental protection and long-term reliability.

Creates space efficiency, optimal current paths, and enhanced robustness and reliability
Unique terminal designs use two similar wire gauges in one terminal and include double-crimp option.

Reduces the risk of handling and transit damage
A tangless  terminal design is available with TPA receptacles only. 

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Applications by Industry

Countertop
Dishwasher
Dryer
Microwave
Oven
Refrigerator
Washing machine

Interior dashboards
Lighting and automation
Power converters
Unsealed electronic control modules

Lighting and automation
Machinery and heavy equipment

Power supplies and distribution
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?​
Mega-Fit Connectors are visually color-coded and mechanically keyed to create a design on the molded housing that helps prevent mis-mating. This means that you cannot mix colors. Natural mates to natural and black mates to black. ​

What is the benefit of using the double-crimp feature?
Using two similar wire gauges in one terminal creates space efficiency, optimal current paths and enhanced robustness and reliability. ​

Does Molex have PCB potting capability?
No, Molex can provide the specifications for potting the Fit Families, but the customer will need to pot the PCB or use a third-party. Molex provides the potting-capable series, potting resin recommendations and maximum potting height for uninterrupted connectivity. ​

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