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Wiring Harness
  • 2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly
  • 2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly
  • 2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly
2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly

2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly

  • >= 1 Pieces
    $0.30
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2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Power Transmission: Supports up to 50V DC/60V AC and 1A current, enabling reliable power delivery in electronic devices.
  • Plug-and-Play Design: Molex/JST-style 2-pin connectors allow quick insertion and removal, ideal for temporary or semi-permanent connections in prototyping, testing, and field repairs.

Key features

  • 1. Durable Material Technology for Reliable Performance

    • With a polycarbonate body and copper conductors, ensure durability and efficient power transmission compared to connectors using less conductive materials*. The transparent polycarbonate withstands repeated use without wear, while copper maximizes electrical conductivity.

  • 2. Plug-and-Play Interactive Design for Quick Setup

    • With JST-style plug-and-play design, achieve quick and secure connections without tools, faster than screw-type connectors*. The two-pin configuration simplifies assembly and disassembly for prototyping or field repairs.

  • 3. Robust Performance in Harsh Environments

    • With a 50V/1A rating and IP-rated waterproofing, operate reliably in harsh environments compared to non-weatherproof alternatives*. The design handles moisture and dust, ideal for outdoor electronics or industrial applications.

  • 4. Customizable Solutions for Versatile Applications

    • With customizable lengths and color options, adapt to diverse electronic projects and professional setups, offering more flexibility than fixed-length cables*. Choose from color-coding for circuit identification or lengths tailored to specific wiring needs.

  • 5. Certification-Ready for Safety Compliance

    • While specific certifications are not listed, these connectors are designed to meet industry safety standards for electronic applications*. Confirm compliance with the manufacturer for use in regulated environments.

Product details

2 Pin Molex Connector 5557 5559 Male 39012020 to Female 39012021 Power Cable Assembly

The 2-Pin Molex Connector 5557/5559 Power Cable Assembly offers a reliable, low-voltage power connection solution for electronic devices. Designed with thermoplastic durability and customizable lengths, these connectors ensure secure, repeatable connections in diverse applications, from prototyping to industrial use.

Technical specifications

FeatureSpecificationApplication Scenario
Material CompositionThermoplastic (Polycarbonate)Harsh environments requiring durability
Voltage Rating50V DC / 60V ACLow-voltage electronics (e.g., LED systems)
Current Capacity1ASmall electronic devices and circuits
Connector StyleMolex 2-PinPrototyping and testing electronic circuits
Waterproof/DustproofIP54Outdoor equipment or industrial machinery
Length CustomizationCustom lengths (0.1m–5m)Custom wiring solutions for varied project needs

Customization guide

Adjustable lengths (0.1m–5m) and optional color coding to meet specific wiring requirements or distinguish between circuits in complex systems.

Get inspired

These 2-Pin Molex connectors provide a reliable and versatile power connection solution. With customizable lengths and robust materials, they are ideal for both prototyping and professional electronics projects, ensuring secure and durable connections in diverse environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Rating50V DC+20% (60V DC)+40% (70V DC)*
Current Capacity1A+50% (1.5A)+100% (2A)*
IP RatingIP54IP67IP68
Operating Temperature-20°C to 85°C-30°C to 105°C-40°C to 125°C*

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s IP68 rating enables underwater use, ensuring reliable power transmission in submerged environments.
    • The Advanced Model’s 1.5A current capacity handles heavier loads, such as power-hungry sensors or motors.
    • The Pro Model’s extended temperature range (-40°C to 125°C) supports extreme industrial or automotive applications.

  2. Version Selection Guidance:

    • Hobbyists/Prototypers: Opt for the Base Model for standard needs (e.g., simple circuits or testing).
    • Industrial Users: Choose the Advanced Model for higher current demands (1.5A) and IP67 protection in harsh factories.
    • Marine/Automotive Engineers: The Pro Model’s IP68 and extreme temp tolerance make it ideal for underwater or high-temperature systems.

With the Pro Model’s 2A current capacity (100% higher than the Base), you can power demanding devices like industrial actuators. Its IP68 rating ensures safety in marine applications, while the Advanced Model’s IP67 makes it dust/waterproof for outdoor robotics.

Frequently asked questions

  • Which 2-pin Molex connector suits low-voltage electronics like Raspberry Pi projects?

  • How do I clean Molex connectors to maintain conductivity?

  • Polycarbonate vs. PVC: Which material is better for Molex connectors?

  • Can I customize the length and color of these Molex connectors?

  • Are these Molex connectors waterproof for outdoor use?

  • What’s the maximum current these 2-pin Molex connectors can handle?

  • Are Molex 5557/5559 connectors compatible with multiple devices?

  • How easy is it to install these connectors on custom wiring projects?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage RatingIndustrial Equipment, Power DistributionIndustry Standard: 50V DC (IEC 60695-1)
Our Base: 50V DC
Our Advanced: 60V DC (UL 62368)		▲ Advanced supports higher voltage for industrial systems (e.g., robotics)Base/Standard: Limited to 50V for low-power devices only
Current CapacityHigh-Power Devices, MotorsIndustry Standard: 1A (IEC 60204)
Our Base: 1A
Our Advanced: 2A (ASTM B251)		▲ Advanced handles heavier loads (e.g., drones, power tools)Base/Standard: Risk of overheating in high-current applications
Material DurabilityHarsh Environments (Chemical Exposure)Industry Standard: Polycarbonate (ASTM D786)
Our Base: Polycarbonate
Our Advanced: FR-PC (UL 94 V-0)		▲ Advanced resists flames and chemicals (e.g., automotive use)Base/Standard: Susceptible to UV degradation over time
WaterproofingOutdoor/Industrial SettingsIndustry Standard: IP54 (IEC 60529)
Our Base: IP54
Our Advanced: IP67 (IP67: 1m/30min submersion)		▲ Advanced for wet/dusty environments (e.g., marine electronics)Base/Standard: Limited to splash/dust protection only
CustomizationCustom Wiring ProjectsIndustry Standard: Fixed lengths/colors
Our Base: Length customizable (10–100cm)
Our Advanced: Length + Color + Connector Style		▲ Advanced suits complex setups (e.g., aerospace prototyping)Base/Standard: Limited to basic adjustments
Ease of UseRapid Prototyping, DIYIndustry Standard: Standard crimping
Our Base: Quick-lock design (1s insertion)
Our Advanced: Tool-free snap-fit (patent-pending)		▲ Advanced reduces assembly time by 50% (ideal for R&D labs)Base/Standard: Requires crimping tools for secure connections

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.