Mini-Fit Jr 4.2mm Wire to Board Connector Housing & Terminal System

This 4.2mm pitch connector series is compatible with Molex Mini-Fit Jr series, including 5556 female terminals, 5557 female housings, 5558 male terminals, and 5559 male housings.

Designed for power and signal applications requiring higher current capacity and reliable connections, this connector system is widely used in industrial equipment, power supplies, robotics, 3D printers, battery systems, and control devices.

Available in multiple pin configurations with housing and crimp terminals supplied separately for flexible wire harness assembly.

Key Features

• 4.2mm pitch Mini-Fit Jr compatible connector
• Compatible with Molex 5556 / 5557 / 5558 / 5559 series
• Male and female connector system available
• Housing and crimp terminals supplied separately
• Suitable for wire harness assembly
• High reliability power connection design
• Available in multiple pin configurations
• Standard packing: 1000pcs per pack

Available Parts

Female Connector System

5557 Female Housing

Available Pin:

• 2 Pin
• 3 Pin
• 4 Pin
• 5 Pin
• 6 Pin

5556 Female Crimp Terminal

• Loose terminal
• Compatible with 5557 housing
• Wire harness assembly use

Male Connector System

5559 Male Housing

Available Pin:

• 2 Pin
• 3 Pin
• 4 Pin
• 5 Pin
• 6 Pin

5558 Male Crimp Terminal

• Loose terminal
• Compatible with 5559 housing
• Wire harness assembly use