2.54mm Double Row 2x20 Pin PCB Female Header 

Product Description

The 1.27mm Pitch Female Header, 2-Row SMT Type with Peg is a compact board-to-board interconnect designed for PCB assemblies where limited board space, controlled connector height, and accurate SMT placement are important.

With a 1.27mm (0.050") pitch, dual-row contact arrangement, surface-mount construction, and optional/customizable mechanical dimensions, this female header is suitable for compact electronic modules requiring a reliable mating interface between PCBs.

The 8–20 position configuration is suitable for low-to-medium contact-count applications, while customized insulator height and solder-leg length allow engineers to adapt the connector to different PCB stack heights, mating distances, and assembly conditions.

The integrated peg provides an additional mechanical positioning feature during PCB assembly and helps align the connector with the PCB footprint.

Custom Height and Solder Leg Length

Designed Around Your PCB Stack-Up

One of the most important advantages of this connector configuration is the ability to customize the insulator height and solder-leg length.

Instead of forcing the PCB design to accommodate a fixed connector geometry, engineers can specify the connector around the actual mechanical structure.

Customization can be considered for:

• PCB-to-PCB spacing
• Mating connector height
• Component clearance
• Housing interference
• Solder joint requirements
• PCB thickness
• Automated SMT assembly

Industry suppliers of 1.27mm female headers commonly offer customizable insulator heights and pin/tail lengths for different PCB spacing requirements.

Customization Options
Pin count: 2‑50 pins available besides standard 20P
Plating: gold flash / hard gold/matte tin
Feature: add polarizing key, locating pegs
Packaging: adjust reel dimension for your SMT feeder
Housing material upgrade for higher temperature requirements

Applications

Industrial Electronics

Suitable for:

• Industrial controllers
• Control boards
• PLC-related electronics
• Measurement equipment
• Automation modules

Communication Equipment

Potential applications include:

• Network equipment
• Communication modules
• Interface boards
• Embedded communication systems

Embedded Computing

The compact 1.27mm pitch makes this type of connector suitable for:

• Embedded computer boards
• Processor modules
• Expansion boards
• Compact computing platforms

Display & HMI Electronics

Applications can include:

• Display control boards
• HMI modules
• LCD interface boards
• Touchscreen control electronics

Consumer Electronics

Potential uses include:

• Smart devices
• Portable electronic equipment
• Compact control modules
• Audio/video electronics

Automotive Electronics

Potential applications include:

• Automotive control modules
• Display electronics
• Instrument clusters
• Infotainment electronics