Molex Mini-Fit Jr Series Straight Through Hole PCB Header, 4 Contact(s), 4.2 mm Pitch, 2 Row, Shrouded

RS Stock No.:: 189-1457
Mfr. Part No.:: 39-28-1043
Manufacturer:: Molex

Molex Mini-Fit Jr Series Straight Through Hole PCB Header, 4 Contact(s), 4.2 mm Pitch, 2 Row, Shrouded

The image is for reference only, please refer to product details and specifications

Bulk discount available

Subtotal (1 box of 1500 units)*

HK$4,608.00

FREE delivery for orders over HK$250.00

In Stock

Plus 10,500 unit(s) shipping from 18 December 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Box*
1500 - 1500	HK$3.072	HK$4,608.00
3000 - 4500	HK$2.996	HK$4,494.00
6000 +	HK$2.949	HK$4,423.50

*price indicative

RS Stock No.:: 189-1457
Mfr. Part No.:: 39-28-1043
Manufacturer:: Molex

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Molex
	Product Type	PCB Header
	Series	Mini-Fit Jr
	Current	9A
	Pitch	4.2mm
	Number of Contacts	4
	Housing Material	Nylon
	Number of Rows	2
	Orientation	Straight
	Shrouded/Unshrouded	Shrouded
	Mount Type	Through Hole
	Connector System	Wire-to-Board
	Contact Plating	Tin
	Contact Material	Brass
	Row Pitch	4.2mm
	Termination Type	Solder
	Minimum Operating Temperature	-40°C
	Contact Gender	Male
	Maximum Operating Temperature	105°C
	Standards/Approvals	No
	Voltage	600 V

	Select all
	Brand Molex
	Product Type PCB Header
	Series Mini-Fit Jr
	Current 9A
	Pitch 4.2mm
	Number of Contacts 4
	Housing Material Nylon
	Number of Rows 2
	Orientation Straight
	Shrouded/Unshrouded Shrouded
	Mount Type Through Hole
	Connector System Wire-to-Board
	Contact Plating Tin
	Contact Material Brass
	Row Pitch 4.2mm
	Termination Type Solder
	Minimum Operating Temperature -40°C
	Contact Gender Male
	Maximum Operating Temperature 105°C
	Standards/Approvals No
	Voltage 600 V

Molex PCB Header, 9A Current Rating, Brass Connector - Mini-Fit Jr Series - 39-28-1043

Use this PCB header from Molex to firmly attach wires to your high-current circuit boards. As it's rated 9A, it can handle that current through each of its four contacts. The unit's polarised design stops you from accidentally mismating the wires and ensures the correct system connection each time. It has a shrouded terminal that keeps debris from getting into the workings while ensuring cables are reliably secure.

Features & Benefits

• Light 1.209g weight won't put unnecessary pressure on your circuit board

• 4.2mm pitch interface suits high-density wire arrangements

• Wide operating temperature range between -40°C and +105°C for use in demanding systems

Applications

• Research and development facilities

• Domestic appliances

• Lighting systems

• Manufacturing machinery

What's a wire-to-board system?

A wire-to-board connector system is a way to connect a wire to a printed circuit board, meaning you can send power and signals between circuits. It's an important component in any PCB design.