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Molex 5557 Cable Assembly

Custom cable assemblies using Molex 5557 series connectors for power, signal and equipment-level connections. Wire gauge, cable length, circuit count, connector configuration and pinout can be customized for OEM applications.

Connector Type
Molex Mini-Fit Jr. 5557
Connector Pitch
4.2mm
Connection Type
Wire-to-Wire / Wire-to-Board
Number of Circuits
2-24PIN
Wire Gauge
AWG 16-30 Customized
Cable Length
100-2000mm or Customzied
MOQ
10 pieces (sample), 100 PCS

What Is a Molex 5557 Cable Assembly?

A Molex 5557 cable assembly is a pre-terminated cable solution built with Molex 5557 series connectors for organized power, signal and internal equipment connections. The 4.2 mm pitch connector format supports multi-circuit wiring between PCBs, power circuits, control boards and electronic modules.

Fengzhan provides customized Molex 5557 cable assemblies based on customer drawings, samples, BOMs or wiring requirements. Cable length, wire gauge, circuit count, connector configuration and pinout can be adapted to the application.

Molex 5557 Cable Assembly Applications

Computer & Server Equipment

Computer & Server Equipment

Industrial Equipment

Industrial Equipment

Power & Control Systems

Power & Control Systems

Electronic Equipment

Electronic Equipment

Computer & Server Equipment

Suitable for internal equipment wiring where multiple circuits need to be organized through a connectorized cable assembly.

Industrial Equipment

Used for internal power and control connections between boards, modules and electrical components in industrial equipment.

Power & Control Systems

Suitable for multi-circuit power distribution and control wiring where a defined connector interface is required.

Electronic Equipment

Used for PCB-to-module and internal power or signal connections in electronic devices.

Common Molex 5557 Cable Assembly Functions

The 5557 connector platform can be configured for several wiring functions inside electronic and electrical equipment. Depending on the circuit design, these assemblies may be used for board power, multi-wire distribution, control connections, or internal connections between separate modules.

PCB Power Connection

5557 cable assemblies can connect power circuits between a PCB and an external power source or internal module, providing an organized multi-conductor connection.

Multi-Wire Power Distribution

Multiple conductors can be arranged within one connector assembly to distribute defined power circuits between boards, modules, and other electrical components.

Board-to-Module Connection

The assembly can provide a structured connection between a circuit board and a separate electronic module, reducing the need for individually routed wires inside the equipment.

Internal Control Wiring

Selected circuits can be used for control or interface connections between control boards, switches, displays, and other internal electronic components according to the wiring design.

Molex 5557 vs. Compact Connector Options

Molex 5557 can be suitable for multi-wire power and internal equipment connections, while some projects require a smaller connector format because of limited installation space. If your application prioritizes a more compact connection for power or signal wiring, see our Molex Micro-Fit 3.0 Cable Assembly for another connectorized cable option.

Need a smaller connector format? See our Molex Micro-Fit 3.0 Cable Assembly.

Explore Micro-Fit 3.0 Cable Assembly →

Common Molex 5557 Cable Assembly Configurations

Molex 5557 cable feature a durable connector design suitable for applications requiring reliable electrical performance and mechanical stability. The Mini-Fit Jr. series provides a larger connector structure compared with compact connector solutions, making it suitable for power distribution and equipment-level wiring applications.

Fengzhan ensures accurate wire preparation, terminal crimping, connector assembly, and inspection during production. Customers can select different wire specifications, connector combinations, and cable configurations according to project requirements. These features make Molex 5557 cable assemblies a dependable choice for industrial electronics, automation systems, and power-related applications.

1. Molex 5557 to Molex 5557 Cable Assembly

Molex 5557 to Molex 5557 cable assemblies use Molex 5557 series connectors on both ends to create a connectorized connection between two compatible interfaces. This configuration is suitable for equipment wiring, power distribution and module-to-module connections where a detachable cable is preferred. Connector housing, circuit count, wire specification, cable length and pinout can be customized according to the application.

2. Molex 5557 to PCB Cable Assembly

Molex 5557 to PCB cable assemblies connect a PCB or control board with a Molex 5557 connector interface. This configuration can be used for power, control or signal connections between a circuit board and another component or cable. Wire gauge, circuit count, cable length, connector orientation and pin assignment can be customized based on the PCB layout and electrical requirements.

3. Molex 5557 to Bare Wire Cable Assembly

Molex 5557 to bare wire cable assemblies combine a Molex 5557 connector on one end with prepared wires on the other end. This configuration provides flexibility when the cable needs to connect directly to terminals, terminal blocks, customer-defined components or another wiring system. Wire gauge, wire length, wire color, stripping and termination requirements can be customized for different OEM applications.

4. Multi-Circuit Molex 5557 Cable Assembly

Multi-circuit Molex 5557 cable assemblies integrate multiple conductors into a single connectorized cable to simplify power, control or signal wiring. The circuit count, wire gauge, wire color, pinout and cable length can be configured according to the application. This approach can help organize multiple electrical connections within equipment while reducing separate individual wires and simplifying installation.

Need a Keyed Molex 5557 Wire Harness?

For applications requiring a keyed connector configuration, see our dedicated Molex 5557 Keyed Wire Harness Assembly for more details on this specific wiring solution.

Explore Keyed Molex 5557 Wire Harness →

Technical Features of Molex 5557 Cable Assemblies

Molex 5557 cable feature a durable connector design suitable for applications requiring reliable electrical performance and mechanical stability. The Mini-Fit Jr. series provides a larger connector structure compared with compact connector solutions, making it suitable for power distribution and equipment-level wiring applications.

Fengzhan ensures accurate wire preparation, terminal crimping, connector assembly, and inspection during production. Customers can select different wire specifications, connector combinations, and cable configurations according to project requirements. These features make Molex 5557 cable assemblies a dependable choice for industrial electronics, automation systems, and power-related applications.

4.2 mm Pitch Connector Format

Molex 5557 connectors feature a 4.2 mm pitch format designed for multi-circuit electrical connections. The connector interface provides a defined connection between wires, boards and equipment components. Depending on the project requirements, Fengzhan can configure the connector housing, circuit count and mating arrangement as part of a customized cable assembly.

Multi-Circuit Wiring

Molex 5557 cable assemblies can accommodate multiple circuits within a single connectorized assembly, allowing several electrical connections to be organized through one interface. This can simplify equipment wiring compared with using multiple individual connections. Circuit count, wire gauge, wire color and pin assignment can be specified according to the customer's electrical and mechanical requirements.

Wire-to-Wire and Wire-to-Board Options

Molex 5557 cable assemblies can be configured for both wire-to-wire and wire-to-board applications. This allows the same connector series to be used for different equipment wiring requirements, including cable-to-cable and PCB-related connections. The connector configuration, cable construction, circuit count and pinout can be customized based on the target interface.

Customized Wire Specifications

The cable construction can be customized according to the electrical and mechanical requirements of the application. Available specifications may include wire gauge, conductor quantity, wire color, insulation and cable length. Customers can provide their required wire specification or drawing, allowing the cable assembly to be manufactured according to the defined project requirements.

Customized Pinout Configuration

The pinout of a Molex 5557 cable assembly can be arranged according to the required circuit connection. Different wires can be assigned to specific connector positions based on the customer's wiring diagram or pin assignment. This is particularly useful for OEM applications where the cable must match a specific PCB, control module or equipment interface.

Crimped Terminal Connection

Molex 5557 cable assemblies use crimped terminal connections between the wire conductors and connector contacts. The terminal crimping process forms the electrical and mechanical connection before the terminals are inserted into the connector housing. Wire and terminal specifications can be selected according to the connector configuration and project requirements.

How Can a Molex 5557 Cable Assembly Be Customized?

Fengzhan can configure these connectorized cables around the electrical layout and mechanical requirements of your equipment. Customization may include connector gender, circuit count, wire gauge, cable length, wire color, insulation material, and terminal configuration. The wire arrangement can also be adapted to match the positions of PCBs, control modules, and other connection points inside the equipment.

Additional processing such as stripping, crimping, labeling, heat-shrink protection, and sleeving can be considered when required. Customers can submit drawings, samples, BOMs, or existing cable specifications so our engineering team can review the proposed construction before production.

Cable Structure Customization

- Cable length
- Wire quantity
- Wire gauge
- Cable color
- Pin configuration

Connector Customization

- Connector selection
- Terminal type
- Housing selection
- Pin arrangement
- Connector replacement

Protection Customization

- Heat shrink protection
- Braided sleeving
- Shielding layer
- Available when required by the project

Manufacturing Requirements

- OEM Design
- Prototype development
- Low-volume production
- High-volume manufacturing
- Customized packaging

How We Manufacture Molex 5557 Cable Assemblies?

Fengzhan checks connectorized cable assemblies throughout production to help maintain consistent wiring and termination quality. Incoming wires, connectors, and terminals are inspected before processing. Wire cutting and stripping are monitored for the required dimensions, while crimped terminals are checked for proper assembly.

Connector insertion and pin positions are verified against the specified wiring configuration. Finished assemblies can undergo continuity and wiring checks to identify incorrect or open circuits before shipment. Final inspection also covers cable length, connector condition, labeling, protective materials, and overall appearance according to the applicable project requirements.

1. Incoming material inspection

All incoming wires, connectors, terminals, and components are inspected to verify specifications, material quality, and compliance before entering the production process.

2. Wire cutting inspection

Wire cutting processes are carefully monitored to ensure accurate length, stripping dimensions, and consistent preparation for reliable assembly performance.

3. Crimping quality inspection

Crimping operations are inspected to ensure proper terminal connection, pull strength, and stable electrical performance according to production requirements.

4. Connector assembly inspection

Connector installation is checked to confirm correct pin positions, secure connections, and proper assembly quality for dependable cable performance.

5. Electrical continuity testing

Each cable assembly undergoes electrical testing to verify continuity, wiring accuracy, and reliable signal or power transmission before shipment.

6. Final appearance inspection

Finished products are visually inspected for appearance, labeling, protection, and overall assembly quality to ensure they meet customer specifications.

FAQ

1. What are Molex 5557 cable assemblies commonly used for?

They are commonly used for organized power, control, and multi-wire connections between PCBs, power circuits, control boards, and electronic modules inside equipment. The specific configuration depends on the electrical design and connector requirements of the application.


2. Can you provide both male and female connector configurations?

Yes. The assembly can be configured with the required mating connector arrangement, including male or female options, according to the target equipment and connection design. The required connector and terminal specifications should be confirmed during the engineering review.


3. Can you customize the cable length and pinout?

Yes. Cable length and pinout can be customized according to your application requirements. You can provide the required cable length, connector configuration and pin assignment, or send us a drawing, wiring diagram or sample for reference. Our team can review the requirements and manufacture the Molex 5557 cable assembly accordingly.


4. Can you provide Molex 5557 wire-to-wire and wire-to-board assemblies?

Yes. We can provide Molex 5557 cable assemblies for both wire-to-wire and wire-to-board configurations. The connector arrangement, circuit count, wire specification, cable length and pinout can be customized according to the application. If you have a drawing, PCB interface, sample or connector part number, you can send it to us for configuration and quotation review.

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