39013045 0039013045 Molex Rectangular Connector Housing Guide

1. Introduction: The Unsung Hero of Connectivity

In the intricate world of electronics, every component plays a crucial role in ensuring the seamless operation of devices, from industrial machinery to everyday gadgets. Among these vital parts, connectors stand out as the silent workhorses, providing the pathways for power and data. When it comes to reliable power applications, few components are as recognized and trusted as those from Molex. Today, we delve into a specific yet highly impactful component: the Molex 0039013045 Rectangular Connector Housing. Often identified as 0039013045, this particular Mini-Fit Jr. receptacle housing is a cornerstone for engineers and designers seeking robust and secure electrical connections. This guide will unpack everything you need to know about this essential piece of engineering, from its core specifications to its diverse applications and why it continues to be a go-to choice in various industries.

2. Understanding the Molex 0039013045: A Closer Look

The Molex 0039013045 is more than just a piece of plastic; it’s a precisely engineered component designed to facilitate stable and safe electrical connections. Part of Molex’s highly acclaimed Mini-Fit Jr. 5557 Series, this receptacle housing is specifically configured for dual-row arrangements with 4 circuits. Its design is a testament to Molex’s commitment to quality and durability, making it suitable for demanding environments where consistent performance is paramount. The “receptacle housing” designation indicates that this component is designed to receive and house male terminals, forming part of a complete plug-and-receptacle connection system. Its black finish and UL 94V-2 flame retardant rating further emphasize its industrial -grade readiness and safety compliance, ensuring reliability even under challenging conditions. This particular part is an active and readily available solution, signifying its continued relevance and demand in the market.

3. Key Features and Specifications That Matter

Understanding the detailed specifications of the Molex 0039013045 is crucial for proper selection and integration into any electronic system. This connector housing boasts several features that contribute to its widespread adoption and performance reliability. At its heart, the 39013045 is characterized by its 4.20mm (0.165″) pitch, a standard within the Mini-Fit Jr. family that ensures compatibility with a range of mating components and allows for significant current carrying capacity for a compact connector. Its dual-row configuration maximizes circuit density within a smaller footprint, making it ideal for applications where space is at a premium but multiple connections are required.

Constructed from PA Polyamide Nylon 6/6, the housing material provides excellent mechanical strength and thermal stability. The UL 94V-2 flammability rating is a critical safety feature, indicating that the material will self-extinguish within a specified time when tested vertically, reducing fire risks in electronic assemblies. The integrated locking features typical of the Mini-Fit Jr. series ensure a secure mating retention, preventing accidental disconnections due to vibration or shock, which is vital in industrial and automotive settings. Furthermore, its black color offers aesthetic integration into many systems and is often a standard for such industrial components.

Technical Specifications Overview

To provide a clearer picture, here’s a summary of the key technical specifications for the Molex 0039013045:

Feature	Specification	Benefit
Part Number	39013045 (or 0039013045)	Standardized identification for procurement
Series	Mini-Fit Jr. 5557 Series	Part of a robust, high-current connector family
Connector Type	Receptacle Housing	Designed to receive male terminals
Number of Circuits	4	Ideal for multi-wire power/signal connections
Rows	Dual Row	Efficient use of space, higher circuit density
Pitch	4.20mm (0.165″)	Industry standard for power applications , allows high current
Material	PA Polyamide Nylon 6/6	Durable, good mechanical and thermal properties
Flammability Rating	UL 94V- 2	Enhanced safety against fire hazards
Color	Black	Standard for industrial aesthetics
Current Per Circuit (Series)	Up to 9.0A	Suitable for moderate to high power applications

4. 39013045 0039013045 Datasheet Download

• 39013045 0039013045 Datasheet: 0039013045

 

5. The Mini-Fit Jr. Advantage: Why This Series Excels

The Molex 0039013045 doesn’t exist in isolation; it’s a proud member of the broader Mini-Fit Jr. connector series, a product line renowned for its reliability and versatility in power applications. Molex’s Mini-Fit Jr. Wire-to-Board Connectors are engineered to handle significant power, with capabilities of up to 9.0A per circuit. This makes them an excellent choice for applications requiring robust power delivery without compromising on a compact form factor. The series offers a wide range of options, typically from 2 to 24 circuits, accommodating various design needs. This scalability, combined with multiple plating and material selections across the series, provides design flexibility that engineers value.

Key advantages of the Mini-Fit Jr. series, and by extension the 39013045, include:

• High Current Carrying Capability:Designed for power, it reliably supports up to 9.0A per circuit, minimizing power loss and improving efficiency.
• Positive Locking Mechanism:Ensures secure mating and prevents accidental disconnections, crucial for systems subject to vibration or shock.
• Fully Isolated Terminals:Protects against potential short circuits and damage during handling and mating, enhancing safety and reliability.
• Scoop-Proof Housing:Prevents damage to the terminals during angled mating, increasing the durability and lifespan of the connector.
• Versatile Configurations :While the 39013045 is a 4-circuit dual-row housing, the series’ breadth ensures that engineers can find solutions for almost any circuit count and board orientation.

This combination of features solidifies the Mini-Fit Jr. series’ reputation as a top-tier choice for dependable power connections.

 

6. Versatile Applications of the 39013045

Given its robust design and reliable performance, the Molex 0039013045 receptacle housing finds its way into a vast array of industrial and commercial applications. As a fundamental component in many electronic systems, its versatility makes it indispensable across various sectors. According to Molex, their interconnect products, including connectors, cable assemblies, switches, and other passive components, are utilized in diverse industries. The 39013045, with its specific features, is particularly well-suited for:

• Industrial Equipment:From automation systems to factory machinery, where durable connections are required to withstand harsh operating conditions and ensure continuous power flow.
• Data Communications:Used in servers, networking equipment, and data storage solutions where reliable power distribution is essential for uninterrupted operation.
• Consumer Electronics:While often associated with larger industrial applications, its compact yet powerful design can be found in high-power consumer devices, ensuring robust internal connections.
• Automotive Applications:Though not explicitly listed for this specific part, similar Mini-Fit Jr. components are used in vehicles for power and control systems due to their vibration resistance and reliability.
• Medical Devices:In critical medical equipment, the need for secure and safe electrical connections is paramount, making components like the 39013045 a suitable choice for internal power routing .
• Telecommunications:Base stations and networking infrastructure rely on high-performance connectors for power delivery to ensure network uptime and signal integrity.

Essentially, any application requiring a secure, mid -range power connection in a dual-row, 4-circuit configuration can benefit from the proven capabilities of the Molex 0039013045.

 

7. The Price Range of 39013045 0039013045

According to the latest market conditions, the price range for 39013045 or 0039013045 is approximately USD0.254 – USD0.435 per piece. The specific price may vary depending on the following factors:

Purchase quantity (bulk purchases typically offer more favorable unit prices)

Supplier and regional differences

We are very strong on Electronic Components Distribution for more than 12 years. We can make sure that all the components from our company are 100% Original and New! Please feel free to contact us if you have any needs.

8. Ensuring Optimal Performance: Installation & Compatibility

To fully leverage the benefits of the Molex 0039013045, proper installation and consideration of mating components are vital. This receptacle housing is designed to work seamlessly with specific male terminals (often from the same Mini-Fit Jr. series) and plug housings. It’s crucial to select the correct crimp terminals that match the wire gauge being used and to ensure they are properly crimped into the housing. Incorrect terminal insertion or inadequate crimping can lead to intermittent connections, increased resistance, and potential overheating, compromising the overall system’s reliability and safety.

When assembling, users should ensure the positive locking mechanism engages fully to prevent accidental disengagement . The scoop-proof feature helps guide the mating process, but force should never be used, as it can damage terminals or the housing itself. Always refer to Molex’s official datasheets and application tooling guides for the most accurate and up-to-date information on assembly procedures, compatible terminals, and wire specifications. Utilizing genuine Molex components for both the housing and its mating parts ensures optimal performance and adherence to the series’ design integrity.

 

9. 39013045 0039013045 FAQs

10. Summary

The Molex 0039013045 (or 39013045) Mini-Fit Jr. receptacle housing stands as a testament to Molex’s expertise in creating reliable and durable interconnect solutions. With its 4-circuit, dual-row configuration, 4.20mm pitch, and UL 94V-2 rated PA Polyamide Nylon 6/6 material, it offers a robust platform for essential power connections. Its inherent design benefits, including fully isolated terminals and a positive locking mechanism, contribute to a high level of performance and safety across a multitude of applications—from industrial machinery and data centers to medical equipment. Engineers and designers seeking a dependable, high-quality solution for their power connectivity needs will find the 39013045 to be an excellent choice, backed by the extensive Mini-Fit Jr. series legacy.

 

Key Takeaways

• The Molex0039013045 is a reliable 4-circuit, dual-row Mini-Fit Jr. receptacle housing.
• It features a 4.20mm (0.165″) pitch, ideal for power applications handling up to 9.0A per circuit.
• Constructed from UL 94V-2 rated PA Polyamide Nylon 6/6 for enhanced safety and durability.
• Integral to the versatile Mini-Fit Jr. series, known for robust design and secure locking.
• Widely applicable in industrial, data communications, and consumer electronics sectors due to its stable and safe electrical connections.