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Vertical and right-angle Micro-Lock Plus connector headers with mating discrete wire cable assemblies.

Wire-to-Board Connectors

Micro-Lock Plus Connectors

Micro-Lock Plus Connectors deliver reliable performance in a compact, low-profile design tailored for space-constrained and demanding applications. These connectors uniquely balance mechanical and electrical robustness in a small form factor to overcome many challenges. With features that ensure stable connections, provide environmental protection and ease of assembly, Micro-Lock Plus Connectors help customers reduce costs, improve efficiency and build high-performance, durable products.

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Pitch Circuits Current Voltage
1.25, 1.50, 2.00mm 2 to 42 Up to 4.7A Up to 250V

PCB Headers

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Micro-Lock Plus PCB Header 2059571071

Connector Housings

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Micro-Lock Plus Receptacle Crimp Housing 2045230601

Crimp Terminals

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Micro-Lock Plus Male Crimp Terminal 2137201000

Connector Accessories

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Micro-Lock Plus TPA 2145282040

Power and Signal Cable Assemblies

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Micro-Lock Plus-to-Micro-Lock Plus OTS Cable Assembly 451110402

Features and Benefits

As devices across numerous industries are becoming smaller and more compact, design engineers face increasing pressure to maintain reliable electrical connections within a limited footprint. Micro-Lock Plus Connectors overcome these challenges and provide solutions that provide highly reliable connections in a small form factor. The small pitch sizes and low-profile design of these connectors provide a compact solution that is ideal for applications where space is at a premium.

In addition to space constraints, design engineers are looking for connector solutions that withstand vibration, repeated use and various stresses without connection failures. Micro-Lock Plus Connectors address the challenge by providing secure mating that helps prevent accidental disconnections, ensuring stable performance and minimizing downtime. The positive locking feature  ensures that the connectors stay mated under common product stresses, preventing intermittent connections and product failures over the device's lifetime.

Design engineers need flexibility in their connector choices to accommodate varying product designs, diverse electrical requirements and evolving application needs. Limited options can lead to compromises on performance, assembly ease or cost, hindering innovation and slowing time to market. The Micro-Lock Plus Connector family offers a broad range of configurations, including various circuit sizes, current ratings and housing options. With a broad range of customizable features, these connectors meet diverse design and reliability demands.

Space Saving and Secure System

Design engineers face increasing pressure to create compact, high-performance electronic systems without compromising reliability or signal integrity. Micro-Lock Plus Connectors offer a compact, space-saving connector that ensures secure mating, durable performance and reliable connections in demanding environments.

Micro-Lock Plus connector terminated to discrete wires mating with a right-angle header

Wide Range of Design Options

Design engineers need compact, versatile connectors that ensure secure mating while accommodating varied plating options, wiring configurations, environmental protections and regulatory requirements. The Micro-Lock Plus Connector offers a broad range of customizable features such as multiple plating thicknesses, wire-to-wire capability, TPA, potting capabilities and low-halogen materials, which help meet diverse design and reliability demands.

Micro-Lock Plus connector system with potting capability.

Superior Connection Integrity

Design engineers require connectors with high contact reliability and with the ability to safely handle high current and voltage levels, ensuring consistent electrical performance in demanding environments. The Micro-Lock Plus Connector addresses this need with a dual-contact terminal design that enhances connection security and reliability. These connectors also support high current and voltage ratings to deliver robust and dependable performance in critical applications.

 

A strip of gold-plated Micro-Lock Plus female crimp terminals.

Provides secure PCB retention and strain relief to solder joints
The robust metal solder tabs firmly hold the connector to the board and protect the solder joints from damage by absorbing mechanical stresses.

Supports terminal ruggedness and reliability
The tin-bismuth terminals help prevent whiskering for a clean and uninterrupted signal.

Delivers secure mating retention without sacrificing compactness
The Micro-Lock Plus Connector is one of the smallest connectors featuring positive locks that prevent accidental disconnection.

Strengthens lock for more reliable connection
The inner lock for dual-row versions and outer lock for single-row versions help prevent accidental disengagement in multiple connector configurations.

Meets automotive industry requirements and enhances durability
The connectors withstand up to 105˚ C operating temperature which helps resist thermal stress and material degradation in harsh environments.

Offers design flexibility 
The connectors support two to 42 circuits in single or dual row configurations which allows designers to choose the exact number of circuits and connector layout to fit their application.

Provides secure mating retention and ensures proper mating 
The connectors feature a wide positive latch that enables an audible click, confirming secure mating and helping prevent disconnections that could lead to electrical failure.

Featured Videos

Space-Saving Connectors for High-Density Applications

Ideal for compact applications, the Micro-Lock Plus 1.25mm-Pitch Connector System provides electrical and mechanical reliability, design flexibility and secure mating retention to overcome challenges in high-temperature designs (up to 105°C). Explore how the compact size, wide positive latch and secure mating retention of Micro-Lock Plus wire-to-wire and wire-to-board connectors reduce assembly errors while helping sidestep common obstacles in high-temperature environments.

Robust, Space-Saving Connectors for High-Temperature Applications

Tailored for compact applications that demand high reliability, the Micro-Lock Plus 2.00mm-Pitch Connector System provides electrical and mechanical reliability, excellent space savings and robust solutions for high-temperature applications in harsh environments. This system excels in applications with numerous wires or components, enhancing signal integrity and ensuring secure PCB retention. Discover how its compact design and secure mating retention effectively address industry challenges.

Potting-capable Connectors for Moisture and Dust Protection

Need to protect your connectors from water and dust ingress to achieve better electrical performance? PCB potting offers an excellent solution to help prevent corrosion, avoid contamination and enhance physical stability. Potting ensures moisture-tight and dust ingress protection, while providing mechanical protection against impact, vibration and bending. Explore Molex's versatile range of potting-capable connectors for reliable mechanical and moisture protection across various applications.

Applications by Industry

Automotive Miniaturization
In-cabin applications
Lighting
Mirrors
Steering wheels​

Copiers
PCs
Printers
Ovens
Refrigerators
Small appliances
Washing machines

Generators
Industrial robotics
Machinery & heavy equipment

Hubs
Power supplies and distribution
Routers
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 are Micro-Lock Plus Connectors?

Micro-Lock Plus Connectors are high-performance connectors that provide exceptional electrical and mechanical reliability in applications where space is limited. These connectors provide secure mating retention and robust performance, which helps designers save PCB space. The connectors are best suited for applications such as automotive, industrial and other electronics that require reliable, space-efficient interconnects. 

What pitch sizes and connector configurations are available for Micro-Lock Plus Connectors?

Micro-Lock Plus Connectors offer pitch sizes of 1.25, 1.50 and 2.00mm and connector configurations of wire-to-board and wire-to-wire. This allows the design engineers to leverage space-saving on PCB layouts.

How do Micro-Lock Plus Connectors save PCB space and support compact electronic designs?

The low-profile design of the Micro-Lock Plus Connectors with a small pitch helps the designers to save PCB space. The compact design of the connector enables engineers to create smaller and more efficient electronic devices without sacrificing connection reliability or signal integrity.

What locking mechanism does the Micro-Lock Plus Connector use, and how secure is it for vibration-prone environments?

Micro-Lock Plus Connectors feature a positive locking mechanism that provides secure mating retention to prevent accidental disconnection. The connectors are designed to withstand high vibrations and shocks, making it secure for vibration-prone environments.

What are the electrical ratings and temperature ranges supported by Micro-Lock Plus Connectors?

Micro-Lock Plus Connectors support voltage ratings from 50 to 125V, and a range of current ratings depending on the wire size. These connectors are designed to operate reliably up to 105°C.

What wire sizes and termination options are compatible with Micro-Lock Plus Connectors?

Micro-Lock Plus Connectors are compatible with wire gauge sizes ranging from 30 to 22 AWG, making them suitable for signal and low-power electrical connections. The connectors use Low Mating Force terminals for easy mating and reliable termination.