40x1 Female Berg Strip Header - Straight 2.54mm Pitch Connector

Specifications:

• Pin Count: 40 Pins (Single Row).
  
• Pitch: Standard 2.54mm (0.1 inch).
  
• Orientation: Straight (Vertical).
  
• Contact Material: Phosphor Bronze with high-quality Tin plating.
  
• Insulator Material: Black Thermoplastic (UL94V-0 rated).
  
• Current Rating: 3A AC/DC.
  
• Voltage Rating: 250V AC/DC.
  
• Contact Resistance: 20mΩ Max.
  
• Insulation Resistance: 1000MΩ Min.
  
• Operating Temperature: -40°C to +105°C.
  

Key Applications

• Arduino Shields: The standard connector for stacking custom PCBs onto Arduino Uno or Mega boards.
  
• Raspberry Pi GPIO: Ideal for creating breakout boards for the Pi's 40-pin GPIO header.
  
• Sensor Interfacing: Solder these to your PCB to create a "hot-swap" port for ultrasonic, IR, or DHT sensors.
  
• DIY Keyboards: Frequently used in custom mechanical keyboard builds for controller mounting.

Project Evolution

• The Starting Point: If you have been soldering wires directly to your PCB, you know the frustration of having to desolder them for every minor change.
  
• The Upgrade: Moving to female headers allows for a "Modular Design" philosophy. You can now treat your microcontrollers and expensive sensors as "pluggable modules" rather than permanent fixtures.
  
• Effort Level: Beginner. Requires basic soldering skills to mount onto a PCB or stripboard.

Virtual Technician & Mounting Guide

• Trimming to Size: These strips are designed to be "snapped" or cut. Use a pair of side cutters to cut through a pin position if you need a smaller count (e.g., a 10-pin or 4-pin strip). Pro Tip: You will lose one pin position during the cut.
  
• Soldering Tip: When soldering to a PCB, insert a male header into the female strip first to keep it perfectly vertical and aligned while you solder the pins on the underside.
  
• Voltage Safety: While rated for 250V, these are primarily intended for low-voltage signal and power distribution in electronics.

Package Includes:

1 x 40x1 Female Berg Strip Header - Straight 2.54mm Pitch Connector

Frequently Asked Questions (FAQ)

1. Can I cut this 40-pin strip into smaller sections?
   Yes, you can use a wire cutter or hobby knife to snap it into any length you need.
2. What is the pitch of these pins?
   It is the standard 2.54mm (0.1 inch) pitch, compatible with most breadboards and PCBs.
3. Is this compatible with Arduino pins?
   Yes, this is the standard female header used in the Arduino ecosystem.
4. Can I stack these headers?
   These are standard height; for stacking, you would typically use "Stackable Headers" with longer pins.
5. What is the maximum current per pin?
   Each pin is rated for up to 3A.
6. Will these fit into a solderless breadboard?
   No, female headers are meant to be soldered onto a PCB. Male headers go into the breadboard.
7. Is the plastic heat-resistant?
   Yes, the thermoplastic can withstand standard soldering temperatures.
8. What is the finish on the contacts?
   These are high-quality Tin-plated contacts for excellent solderability.
9. Can I use these for Raspberry Pi GPIO?
   Yes, a 40-pin strip is a perfect match for the Raspberry Pi GPIO layout.
10. Do these come in different colors?
    Currently, these are available in standard Black.
11. Are the pins square or round?
    These have standard square-hole entries for square-post male headers.
12. Can I use 22AWG wire directly in these?
    While intended for male pins, a 22AWG solid core wire will fit, but may not be as secure as a proper pin.
13. Are these RoHS compliant?
    Yes, our headers are fully lead-free and RoHS compliant.
14. What happens if I bend the pins?
    The pins are inside the housing; only the solder tails on the bottom can be bent, but they should be kept straight for PCB mounting.
15. Are these "Gold Plated"?
    This specific SKU is Tin-plated; search for our "Gold Plated" SKU if you need higher corrosion resistance.
16. How do I ensure they are soldered straight?
    Use a male header strip as an alignment jig during soldering.
17. Can I use these for 110V AC?
    Though rated for 250V, we recommend them for DC low-voltage signals only.
18. What is the height of the plastic housing?
    The standard height is approximately 8.5mm.
19. Will a standard jumper wire fit in this?
    Yes, standard male jumper wire pins fit perfectly.
20. Are these Probots™ QC-Pass verified?
    Yes, we check for pin alignment and housing integrity in every batch.