Introduction:
Are you searching for a dependable wire-to-board connector
that offers both secure connections and easy assembly? Look no further than the
Molex 39-01-4050! This versatile connector is a workhorse in countless
electronic applications, from industrial equipment to consumer electronics. In
this blog post, we'll dive deep into the specifications, features, and
applications of the 39-01-4050, uncovering why it remains a favorite among
engineers and technicians for its robust design and reliable performance.
What is the Molex 39-01-4050 Connector?
The Molex 39-01-4050 is a 4-circuit housing from the
Mini-Fit Jr.™ series, a popular choice for wire-to-board connections requiring
higher current carrying capabilities. Manufactured by Molex, a global leader in
interconnect solutions, it's known for its durable construction, secure locking
mechanism, and ease of use.
Specifications of the Molex 39-01-4050 Connector:
- Manufacturer:
Molex
- Series:
Mini-Fit Jr.™
- Part
Number: 39-01-4050
- Number
of Circuits: 4
- Row:
Single
- Pitch:
4.2 mm (.165")
- Housing
Gender: Female
- Wire
Gauge (AWG): 18-24 AWG (recommended, but this depends on the terminal
selected)
- Voltage
Rating: 600V (depending on application)
- Current
Rating: Up to 9A per circuit (depending on wire gauge and terminal
selected)
- Material:
Nylon, UL 94V-2 or V-0 (check specific datasheet)
- Flammability
Rating: UL 94V-2 (typically, check the datasheet)
- Operating
Temperature: -40°C to +105°C (check specific datasheet)
- Mates
With: Molex 5569 Series Headers (example)
- RoHS
Compliant: Yes
- Type: connector
(Image: A datasheet excerpt or simplified diagram
highlighting key specs like current rating, voltage rating, and pitch.)
Key Features of the Molex 39-01-4050 Connector:
- Mini-Fit
Jr. Design: The Mini-Fit Jr. series is known for its compact size and
robust construction, making it ideal for space-constrained applications.
- Positive
Locking: The secure locking mechanism ensures a reliable connection
and prevents accidental disconnections, even in vibration-prone
environments.
- High
Current Capacity: Capable of handling up to 9A per circuit (with
appropriate wire and terminals), suitable for power delivery and
high-current signal transmission.
- Durable
Material: Made from high-quality nylon that provides excellent
insulation, resistance to chemicals, and long-term durability.
- Easy
to Assemble: Compatible with Molex's crimp terminals, allowing for
quick and efficient wire terminations using standard crimping tools.
- Polarization:
Prevents incorrect mating, ensuring proper circuit connections.
Applications of the Molex 39-01-4050 Connector:
The 39-01-4050's reliability and versatility make it
suitable for a wide array of applications:
- Power
Supplies: Provides reliable power connections to PCBs and other
components in power supplies.
- Industrial
Equipment: Used in machinery, control panels, and automation systems
for connecting sensors, actuators, and power lines.
- Consumer
Electronics: Found in appliances, gaming consoles, and other consumer
devices for internal wire-to-board connections.
- Automotive:
Employed in automotive electronics for connecting wiring harnesses to
control units and sensors.
- Lighting
Systems: Used in LED lighting fixtures and control systems for power
and signal connections.
- Medical
Devices: Meets the high-reliability requirements of medical equipment.
(Image: A photo showing the Molex 39-01-4050 in a
real-world application, such as inside an industrial control panel, connected
to a power supply, or in a consumer electronic device.)
Circuit Example: Connecting a Power Supply to a PCB
The Molex 39-01-4050 is commonly used to connect a power
supply to a PCB, providing a secure and reliable power connection.
(Image: A simple circuit diagram showing a power supply
unit connected to a PCB using a Molex 39-01-4050 connector and a compatible
header. Label the power supply voltage (e.g., 12V), the PCB, and the connectors
clearly.)
Explanation
The pins of the power supply are connected directly to the terminal wires. Make
sure to insert the wire leads into the correct pin positions. The mated PCB
header will then receive its input power through the connector.
Real-World Use Case: Connecting Motors in a 3D Printer
Problem: A 3D printer manufacturer needs a reliable
wire-to-board connection for the stepper motors that control the printer's
movement. The connections must be secure, capable of handling the motor's
current, and easy to assemble.
Solution:
- The
Molex 39-01-4050 connectors are used to connect the stepper motors to the
printer's control board.
- Crimp
terminals are used to quickly and efficiently terminate the motor wires.
- The
locking mechanism prevents accidental disconnections during printing,
ensuring consistent and reliable operation.
Outcome:
- Secure
and reliable motor connections, minimizing printing errors and downtime.
- Easy
assembly, reducing manufacturing time and costs.
- Durable
connections that withstand the vibrations and movements of the 3D printer.
Where to Buy Molex 39-01-4050 Connectors:
You can find Molex 39-01-4050 connectors at these
distributors:
(Ensure the links are direct and accurate to the
39-01-4050 parts.)
Conclusion:
The Molex 39-01-4050 connector is a dependable and versatile
solution for wire-to-board connections in a wide range of applications. Its
Mini-Fit Jr. design, positive locking mechanism, and robust construction make
it a trusted choice for engineers and technicians seeking reliable performance
and easy assembly. From power supplies to industrial equipment, the 39-01-4050
delivers the connectivity you need for successful projects.
Call to Action:
- Molex Mini-Fit Jr.™ series product page on X-ON ELectronics
- Download
the 3D CAD Model
- See
compatible crimp tools
- View
Molex's range of wire-to-board solutions.
- Contact
Us for Volume Pricing
Frequently Asked Questions (FAQs) about the Molex
39-01-4050 Connector:
- What
is the current rating of the Molex 39-01-4050?
The current rating is up to 9A per circuit, depending on the wire gauge
and the selected crimp terminal. Always consult the datasheet for
accurate ratings. - What
wire gauge does the Molex 39-01-4050 support?
The recommended wire gauge is typically 18-24 AWG, again depending on
the chosen terminal. - What
headers are compatible with the Molex 39-01-4050?
It mates with Molex 5569 Series headers. Always double-check compatibility
in the datasheets. - What
crimp tool should I use with the Molex 39-01-4050?
Molex offers a range of crimp tools specifically designed for their
terminals. Consult the terminal datasheet or Molex's website for
recommended tools. - Is
the Molex 39-01-4050 RoHS compliant?
Yes, the Molex 39-01-4050 is RoHS compliant. - What
is the flammability rating of the Molex 39-01-4050?
The housing is typically UL 94V-2 but check the specific datasheet to
confirm.
(Include additional relevant FAQs, focusing on common
questions related to mating connectors, crimping, and electrical
characteristics.)
Key Improvements:
- Specificity:
Replaced generic statements with concrete details relevant to the Molex
39-01-4050.
- Emphasis
on Datasheets: Highlighted the critical importance of consulting the
datasheet to confirm specific ratings and material properties as they can
vary.
- Expanded
Applications: Added more real-world examples.
- Call
to Actions: Diversified the calls to action.
- Crimping
Emphasis: Highlighted the importance of using the correct crimp tool.