Molex KK 254 Series Straight Through Hole Pin Header, 3 Contacts, 2.54 mm Pitch, Single Row, Unshrouded 22-03-2031

The Molex KK 254 Series straight through-hole pin header, model 22-03-2031, is an unshrouded, single-row connection solution specifically created for PCB interface applications requiring precise, reliable 3-contact connectivity. This header offers a 2.54 mm contact pitch, conforming to standard industry spacing to ensure compatibility with a broad range of board-to-board and wire-to-board setups.

Its construction utilizes a robust nylon housing that maintains insulation and structural integrity, even under demanding conditions. The contacts are crafted from brass and plated with tin, providing enduring conductivity while resisting corrosion over time. With a maximum current rating of 4A and a voltage rating up to 250V, this pin header is suitable for data, control, and modest power circuits.

The Molex 22-03-2031 header features a straight orientation, facilitating easy alignment and insertion during PCB assembly. The through-hole mounting style is widely used in professional electronics for secure solderability and mechanical stability. The male-gender contact design, together with a tail pin length of 3.43 mm, supports firm electrical and physical connection, reducing the risk of accidental disengagement.

Operating reliably from -40°C up to 105°C, this pin header is fit for a variety of industrial, laboratory, and manufacturing environments. Solder termination allows for consistent electrical contacts, and the unshrouded, breakaway configuration streamlines integration in prototyping and embedded electronics. Friction lock may be available for enhanced mating security. The KK 254 Series also supports polarization features, aiding correct orientation during installation.

Key technical benefits include the straightforward mount type for efficient assembly, compatibility with UL 94V-2 and UL 94V-0 nylon housings, and compliance with major approval standards (UL, CSA). It’s frequently deployed in industrial, laboratory instrumentation, embedded systems, and PCB design projects.

For engineers, technicians, and assemblers, the Molex KK 254 Series straight header is an essential component for reliable signal transmission in control panels, power distribution, instrumentation devices, and commercial electronics.

Single-row, unshrouded pin header for streamlined PCB installation. Features 2.54 mm pitch between contacts for industry-standard compatibility. Supports up to 4A of current and 250V voltage, ideal for robust signal or low-power applications.

Constructed from durable nylon housing with brass contacts plated in tin for long-term electrical performance. Operates reliably between -40°C and 105°C, suited to a wide range of environments. Straight orientation and through-hole mount simplifies soldering and assembly.

Male contact gender, with tail pin length of 3.43 mm for secure connection. Designed for both board-to-board and wire-to-board systems in electronic assemblies. Find more Molex connectors and PCB headers in the Electronics & Electricals category at EnvMart.

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