1x40 Female Pin Header 2.54mm Single Row Through Hole

40 Pin 2.54mm Female Header Single Row Through Hole PCB Socket

The 1x40 Female Pin Header 2.54mm is a standard interconnection component used in electronics prototyping, embedded systems, and PCB assembly. It provides a reliable electrical interface between microcontroller boards, sensor modules, shields, and expansion circuits. The industry-standard 2.54mm (0.1 inch) pitch allows direct compatibility with most development platforms including Arduino, Raspberry Pi, and various DIY controller boards.

This single-row female header is designed for through-hole mounting, ensuring mechanical strength and stable conductivity after soldering. It is widely used in hobby electronics, robotics, educational labs, and product development environments. Many makers and students sourcing components from Bigyan Project use this connector for modular and reusable circuit design where components can be easily attached or replaced without resoldering.

Because the connector accepts standard male pin headers, it enables plug-and-play integration of sensors, communication modules, LCD displays, and expansion shields. The plastic housing provides insulation and proper alignment, while the metal contacts ensure consistent signal transmission and low resistance connections.

Product Specifications

Features

• Standard 2.54mm pitch compatible with most electronics boards
• 40-pin single row configuration for flexible circuit design
• Strong mechanical retention after soldering
• Low resistance electrical contact
• Reusable connector for modular electronics
• Easy to cut into smaller pin segments
• Insulated plastic body for safety and alignment
• Stable signal transmission performance

Applications / Use Cases

• Arduino and Raspberry Pi projects
• Sensor module connections
• Robot controller boards
• Prototype circuit boards
• LCD and display interfacing
• Custom PCB assembly
• STEM education and training labs
• DIY electronics projects from Bigyan Project

User Guide / How to Use

• Insert the header into PCB through-hole pads
• Align vertically to ensure straight positioning
• Solder each pin carefully using a soldering iron
• Allow solder joints to cool properly
• Connect compatible male header pins or modules
• Verify electrical continuity before powering the circuit

Frequently Asked Questions (FAQs)

• Q: Can I cut the 40 pin strip into smaller pieces?
  A: Yes, the plastic housing can be carefully cut to create custom pin counts.
• Q: Is this compatible with Arduino boards?
  A: Yes, it matches the standard 2.54mm header spacing used by Arduino.
• Q: Does it support breadboard usage?
  A: It connects to breadboard using male header pins inserted into the female socket.
• Q: Can it carry high current?
  A: It is intended for signal and low power connections rather than high current loads.
• Q: Why is this connector commonly used in robotics kits?
  A: It allows modules and sensors to be connected and replaced easily without resoldering.

Challenges and Considerations

• Incorrect alignment during soldering may cause angled connections
• Excess heat can damage the plastic housing
• Not suitable for high vibration environments without support
• Not intended for high current power distribution

Compatibility

• Arduino Uno and compatible boards
• Raspberry Pi GPIO interface
• Sensor modules and breakout boards
• Display modules and communication modules
• Custom microcontroller PCBs

Future Enhancement Options

• Stackable shield design
• Modular robotics systems
• Replaceable sensor interfaces
• Expandable development platforms

Benefits

• Quick component replacement
• Clean modular wiring
• Reduced soldering work during testing
• Improved prototyping efficiency
• Reusable connection interface

Conclusion

The 1x40 Female Pin Header 2.54mm is an essential connector for anyone working with electronics, embedded systems, or robotics. Its universal pitch, durability, and flexibility make it a foundational component in prototyping and PCB assembly. Whether you are a student, hobbyist, or developer obtaining parts through Bigyan Project, this connector enables organized and reliable circuit connections.

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