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Elevating Refrigerator Design and User Experience

Today's refrigerator designs must comply with rigorous safety standards while also enhancing the user interface (UI) and integrating smart features to elevate the kitchen experience. Molex supports these design requirements with innovative connectivity solutions that enable advanced features and ensure reliable and durable performance. 

Designing Refrigerator Components


Over the past decade, refrigeration design complexity has rapidly evolved. Remote monitoring, advanced UIs and even camera integration are becoming features consumers expect in refrigerators.  Design engineers must add new functionality into limited space while also considering a variety of other design requirements. 

As engineers incorporate more features and functionality into refrigeration design, they face challenges to ensure their designs are meeting safety and environmental compliance, as well as manufacturing ergonomic requirements, all while accelerating design cycles. They need to consider components that meet these demanding requirements with features such as glow wire compliance, lower mating forces, signal integrity, smaller PCB footprints, locking mechanisms and pre-assembled solutions.

Through extensive engineering expertise, Molex offers innovative and high-quality connectivity solutions that meet the unique requirements of each refrigeration sub-system.


Main Electronics Connectors


Refrigerator manufacturers identify operator ergonomics as a priority on the assembly line. To reduce the risk of fatigue and injury, manufacturers prefer connectors that offer a low mating force and maintain a high-quality connection. Molex connectors support operator ergonomic requirements and deliver secure and reliable connections for consistent product performance.

  Configuration Pitch Circuits Max. Current Rating 
Micro-One Connectors Wire-to-board 2.00mm 2 to 8 4.0A
KK Plus Connectors Wire-to-board 2.50mm
3.00mm
3.96mm
2 to 8 11.0A
Nano-Fit Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 16 8.0A
Mini-Lock Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 15 3.5A
Micro-Fit Connectors Wire-to-wire
Wire-to-board
3.00mm 2 to 22 10.5A
Mini-Fit Connectors Wire-to-wire
Wire-to-board
Board-to-board
4.20mm 2 to 40 20.5A
CP-6.5 Connectors Wire-to-wire
Wire-to-board
6.50mm 2 to 6 12.5A
Mega-Fit Connectors Wire-to-wire
Wire-to-board
5.70mm 2 to 12 30.0A
DuraClik Connectors Wire-to-board 2.00mm 2 to 15 3.0A

User Interface Connectors


Advanced UIs are a rising trend in home appliance design and consumers expect functionality that is intuitive and easy to use. To meet these demands, engineers must design higher density PCBs that can accommodate increased functionality. Molex components are designed with signal integrity, touch controls and space in mind to help design engineers deliver a simple, yet intuitive user experience.

  Configuration Pitch Circuits Actuator Style
Easy-On FFC/FPC Connectors Wire-to-board 0.20mm to 2.00mm 2 to 120 Front flip, back flip, non-ZIF, slider, flexi-latch, one-touch
Premo-Flex Flat-Flexible Cable (FFC) Cable 0.25mm to 2.54mm 3 to 120 -
  Configuration Pitch Circuits Max. Current Rating 
Micro-Lock Plus Connectors Wire-to-board 1.25mm
2.00mm
2 to 42
2 to 16
3.6A
4.7A
Nano-Fit Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 16 8.0A
Mini-Lock Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 15 3.5A
KK Plus Connectors Wire-to-board 2.50mm
3.00mm
3.96mm
2 to 8 11.0A
SlimStack Connectors Board-to-board 0.35mm to 1.25mm 6 to 240 18.0A

Wire Harnesses


With increasing consumer expectations for new refrigerator functionality, design engineers are challenged to future-proof refrigerator electronics designs while ensuring speed to market.  The use of pre-assembled wire harnesses can streamline upgrades, minimize supply chain challenges and accelerate time to market. Molex cable assemblies are efficient and reliable solutions to meet complex cabling requirements associated with updates, enhancements or new model launches. 

  Pitch Circuits Max. Current Rating 
Mini-Fit Cable Assemblies 4.20mm 2 to 40 20.5A
Micro-One Cable Assemblies 2.00mm 2 to 8 4.0A
Nano-Fit Cable Assemblies 2.50mm 2 to 16 8.0A
KK Plus Cable Assemblies 2.50mm
3.00mm
3.96mm
2 to 8 11.0A
Mega-Fit Cable Assemblies 5.70mm 2 to 12 30.0A

Custom Cable Assembly Solutions

Custom cable assemblies and wire harnesses offer a variety of configuration options to support complex refrigerator component design.

Climate Control Connectors


Refrigerator designs demand effective climate control systems that maintain precise temperatures and deliver reliable performance. Molex provides a broad range of connectors designed for high reliability with features such as terminal position assurance and latching devices to safeguard against mis-mating or accidental disconnections, helping to reduce device failure.

  Configuration Pitch Circuits Max. Current Rating
Sabre Connectors Wire-to-wire
Wire-to-board
7.50mm 2 to 8 18.0A
VersaBlade Connectors Wire-to-wire 6.20mm 1 to 9 (standard version)
2 to 4 (high-temperature version)
15.0A
Micro-Fit+ Connectors Wire-to-wire
Wire-to-board
3.00mm 2 to 24 13.0A
Mini-Fit Connectors Wire-to-wire
Wire-to-board
Board-to-board
4.20mm 2 to 40 20.5A

Lighting Connectors


In refrigerator design, lighting solutions must provide optimal illumination while also adhering to space constraints imposed by the appliance’s electrical architecture. For design engineers, this requires a careful selection of components that balances space-saving characteristics with a variety of configurations. Molex offers design engineers a portfolio of connectors that feature small PCB footprints with an array of options to provide design flexibility.

  Configuration Pitch Circuits Max. Current Rating 
Micro-Lock Plus Connectors Wire-to-board 1.25mm
2.00mm
2 to 42
2 to 16
3.6A
4.7A
Micro-One Connectors Wire-to-board 2.00mm 2 to 8 4.0A
Nano-Fit Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 16 8.0A
Mini-Lock Connectors Wire-to-wire
Wire-to-board
2.50mm 2 to 15 3.5A
KK Plus Connectors Wire-to-board 2.50mm
3.00mm
3.96mm
2 to 8 11.0A
Micro-Fit+ Connectors Wire-to-wire
Wire-to-board
3.00mm 2 to 24 13.0A

Sensor Connectors


As a critical element of refrigerator design, the temperature sensing system is often restricted to only one area within the device yet accurate temperature readings may require more than one beta value. Engineers must design effective methods for ensuring consistent temperature readings regardless of where the temperature sensing system is located. Molex offers connectors that can be terminated to the end of the thermistor, providing secure retention to the PCB and helping to ensure more accurate temperature readings.  

  Operating Temperature Beta Range  Resistance Range  
NTC Ring Temperature Sensor Cable Assemblies -40 to +105°C (with connector)
-40 to +150°C (with leads)
3K to 5K 1K to 100K Ohms
  Configuration Pitch Circuits Max. Current Rating
Micro-Fit+ Connectors Wire-to-wire
Wire-to-board
3.00mm 2 to 24 13.0A
Mini-Fit Connectors Wire-to-wire
Wire-to-board
Board-to-board
4.20mm 2 to 40 20.5A

Ice and Water Dispensing Connectors


Consumers frequently use the ice and water dispensing feature on a refrigerator and expect the sub-system to function reliably over the life of the device. Design engineers need to incorporate connectors into the ice and water dispensing design that provide exceptional durability to withstand frequent use. Molex connectors include features designed for durable performance, such as friction and positive locks, terminal position assurance and mounting ears for stronger retention force.

  Configuration Pitch Circuits Max. Current Rating
VersaBlade Connectors Wire-to-wire 6.20mm 1 to 9 (standard version)
2 to 4 (high-temperature version)
15.0A
Micro-Fit+ Connectors Wire-to-wire
Wire-to-board
3.00mm 2 to 24 13.0A
Mini-Fit Connectors Wire-to-wire
Wire-to-board
Board-to-board
4.20mm 2 to 40 20.5A

Wi-Fi Connectors


Consumers expect home appliances to operate like smart home devices, and refrigerators are no exception. Wi-Fi enabled service alerts, communications and remote monitoring are increasingly considered table stakes.  To meet the reliability demands of Wi-Fi communications, Molex connectors offer full EMI shielding for exceptional signal integrity, while providing a small footprint for PCB space savings.

  Configuration Frequency
5G mmWave RF Flex-to-Board Connectors Signal: 2 to 4
Ground: 4 to 6
Power: 4 to 0
15 GHz
25 GHz

Camera Connectors


As design engineers look to the future, cameras within refrigerators are becoming more important to consumers to enable remote access and automate grocery list creation. This added functionality presents a challenge when considering layout constraints on an already dense PCB. Molex connectors maximize space savings with a small pitch and mated height while providing quality data transmission.

  Configuration Pitch Circuits Max. Current Rating 
Micro-Lock Plus Connectors Wire-to-board 1.25mm
2.00mm
2 to 42
2 to 16
3.6A
4.7A
Micro-One Connectors Wire-to-board 2.00mm 2 to 8 4.0A