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Molex KK 254 Series Right Angle Through Hole Pin Header, 12 Contacts, 2.54 mm Pitch, 1 Row, Unshrouded 22-05-2121

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Molex KK 254 Series Right Angle Through Hole Pin Header, 12 Contacts, 2.54 mm Pitch, 1 Row, Unshrouded 22-05-2121

Name: Molex KK 254 Series Right Angle Through Hole Pin Header, 12 Contacts, 2.54 mm Pitch, 1 Row, Unshrouded 22-05-2121
Brand: Molex
SKU: 86159

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Category PCB Header Brand Molex Condition New

Specifications

Country of Origin	India
Voltage	250V
Brand	Molex
Orientation	Right Angle
Current	4A
Mount Type	Through Hole
Housing Material	Nylon
Contact Material	Brass
Series	KK 254
Termination Type	Solder
Maximum Operating Temperature	105°C
Minimum Operating Temperature	-40°C
Number of Rows	1
Pitch	2.54mm
Contact Plating	Tin
Number of Contacts	12
Contact Gender	Male
Shrouded/Unshrouded	Unshrouded
Connector System	Board-to-Board, Wire-to-Board
Tail Pin Length	3.15mm
Mating Pin Length	2.54mm

Key Features

Supports 12 contacts for versatile connections on PCBs.
2.54 mm pitch standard suits a variety of board layouts.
Right angle, through hole design enables secure mounting.
Made with tin-plated brass contacts and white nylon housing for durability.
Rated at 4A current and 250V voltage for robust operational performance.
Unshrouded single row layout simplifies mating and assembly.
Suitable for board-to-board and wire-to-board connections in industrial electronic applications.
Operating temperature range from -40°C to 105°C supports diverse environments.

Product Description

The Molex 22-05-2121 is a KK 254 Series Right Angle Through Hole Pin Header tailored for demanding electronic projects and industrial PCB connections. It features a single row of 12 male pins with a standard 2.54 mm pitch, offering compatibility with a wide range of mating connectors and housing modules. The unshrouded design ensures direct and easy access for soldering or mating in compact spaces where header shrouding is unnecessary or undesired.

Constructed with tin-plated brass contacts for electrical integrity and a durable nylon housing compliant with UL 94V-0 standards, the header provides reliable mechanical and thermal performance. Its 4A rating at up to 250V allows the support of moderate power and signal loads without excessive heating, while the operating temperature span from -40°C to 105°C enables usage in industrial, laboratory, and equipment manufacturing environments.

The right angle PCB mount is especially beneficial for applications where horizontal board connections are needed, streamlining assembly in space-constrained panels. The 3.15 mm tail pin length allows deep and secure solder penetration through PCB holes, while the 2.54 mm mating pin length ensures tight engagement with sockets.

This connector supports both board-to-board and wire-to-board configurations, making it highly versatile for prototyping, system interconnect, and custom PCB setups. Its unshrouded nature also aids in easy inspection, rework, and testing procedures during product development and maintenance.

Used across automation, telecommunications, industrial control panels, and instrumentation, the Molex 22-05-2121 offers a dependable interface for signal or low-to-mid current power lines, minimizing contact resistance and facilitating consistent connectivity throughout the product life cycle.

For those seeking scalable, end-to-end, or side-by-side stackable header blocks, the KK 254 series provides expandability and flexibility for evolving electronic assemblies.

Explore more PCB Headers, connectors, and interconnect solutions from Molex and leading brands across the Electronics Components category on EnvMart for complete component sourcing.