4.20 Pitch 4.20mm Molex 5557 5559 Wire To Board Connector wire harness

Contact Pitch:                                                               4.20mm

No. of Contacts:                                                           2 to 12, 2*1 to 2*12 positions

Current:                                                                        9A (AWG #16 to #24)

Compatible:                                                                  Cross Molex 5557/5559 Connector Series

Voltage Rating:                                                              250V

Temperature Range:                                                      -20°C~+85°C

Contact Resistance:                                                      15 Ohm max

Insulation Resistance:                                                   1000M Omega Min

Withstanding Voltage:                                                   1500V AC/minute

Pitch 4.20mm Molex5557 5559 Wire To Board Connector wire harness cable

High Durability with Terminal Protection Assurance (TPA) Technology

Utilizing Terminal Protection Assurance(TPA) Technology, STC manufactures Molex Mini-Fit 4.2mm with enhancements in its connector housing and contact design to help prevent connection failure. TPA designs offer overlooked connection solutions by providing locking redundancy. This promotes a durable connector design in which terminals can be inserted properly without degradation from unnecessarily exhausting them with thousands of insertions.

Equipped with Reduced Mating Force (RMF) Solutions

Like Molex Micro-Fit, the MIni-Fit Jr is equipped with RMF solutions for lower friction solution between the contacts of the device and the socket, making insertion and removal of the device easier, while at the same time eliminating the need for complex mechanisms such as in ZIF sockets.

Designed for Blind-Mating Applications

Mini Fit Jr Connectors have blind mated connections, differentiated from other types of connectors by the mating action that happens through a sliding or snapping action which can be accomplished without wrenches or other tools.

Superior Signal Integrity

This type of solution is ideal for applications where there is a need for superior signal integrity with multiple reliable and repeatable connections at 70GHz+. Blind-mated solutions are viable for systems such as the following:

• High-speed digital test head interfaces
• Probe card docking stations
• High-speed digital OEM equipment
• RF Channel system mating on testers
• Automated probing of backplane channels or high-speed signal ports

Terminals Feature Dimple design

There’s a dimple at the center of the contact which ensures positive contact and low contact resistance at all times.

Robust and Ruggedized Terminal Enhancements

Electrical signals and power solutions are reliably conducted through connections under conditions of high current through enhanced terminal connections.

Surface Mount (SMT) Option, Press Fit (PFT), or Surface Mount Compatible Versions Available

Surface Mount (SMT) and Press Fit (PFT) both meet different needs for a broad range of electrical/electronic circuits. Press Fit Technology is often used in big connections with a reflow soldering process.

Surface mounting technology (SMT) is a state-of-the-art soldering process step applying numerous electronic components to a PCB. While the SMT option is common and widely used in electronic systems, SMT has certain limitations over PFT depending on the application. STC can offer PFT or SMT options to meet your application needs.

Optimized Safety Feature for Electrical Shock Hazard

With its improved product enhancement, the connector has the capability of withstanding a voltage of 1500 V AC per minute, which means that the insulation is sufficient to protect the user from electrical shock, overheating, and fire.

User-friendly, with its completely polarized housing

STC has an improved design configuration of this connector paving an easier way for users to prevent the plug and receptacle from being mismated, causing stress on the connector.

Applicable in Chassis Wiring and Power Transmission Wiring

STC’s 4.2 mm Molex Mini Fit Jr can be used for AC and DC operations with a rated current of 9.0 amperes and 250 Volts. It is applicable in both chassis wiring and power transmission wiring.

Fully Shrouded Header

The pin header of the connector is wrapped with a thin plastic guide box around it good for preventing cable connection mishaps and it also provides good guidance for the mating connector.

Savvy Material and Finish

The header contact is made up of copper alloy, tin plated over a phosphor bronze material.

The housing is made of Nylon66 UL94V-0 natural ivory. These housings are available with or without protrusions.

The wafer is made up of Nylon66/46 UL94V-0.

The solder tabs are made up of brass, copper undercoated, or tin-plated. These two solder tabs ensure the retention of the header to PCB connection and act as a strain relief for the SMT solder tails minimizing the chance of solder joint breakage.

Vast Temperature Range with Relatively Low Insulation and Contact resistance

Insulation resistance and contact resistance are 1000 Mega ohm per minute minimum and 15 Mega ohm maximum, respectively.

The temperature range for this connector is -25 degrees centigrade to +85 degrees centigrade. This range is based on the rise of temperature with increasing current.

Electronics with High Density, High Current Requirements

Mini Fit Jr connectors, which are roughly 9.6 mm x 15.1 mm x 19.6 mm, complement its size with the high current it delivers in power distribution systems.

Safe and Reliable

STC’s Mini Fit Jr connectors ensure safety, system protection, and performance with its bonded metallic conduits and multiple grounding points preventing fire hazards, component damage, overheating, and possible electrocution.

ROHS Compliant

The product does not contain restricted chemicals in concentrations not comply with ROHS standards. Thus, for its components, the products can be worked upon at high temperatures required by lead-free soldering.

Automotive, heavy-duty military and Marine

Mini-fit Jr is suitable for automotive connections and built to be robust in tough and harsh conditions.

Modern PCs, Laptops, and Gadgets

It can be used in all types of PCB assemblies, projectors, and high power applications, computers, inkjet, notebook PCs, ATMs, LCD, security systems, digital cameras, cell phones, scanners, medical equipment, fingerprint machines, taximeters, automobiles, power source for communication devices and many more.

Motherboards

The Motherboard of a computer holds together many of the crucial components such as the central processing unit (CPU), memory, and connectors for input and output devices. Mini Fit Jr. connectors ensure high-performance electronic systems in quality motherboards.

You can easily find STC’s Mini Fit Jr in most Advanced Technology Extended (ATX) motherboards, microATX, Mini ATX, FlexATX, and Extended ATX.