PCB Headers

PCB (Printed circuit board) headers are a type of electrical connector that allows you to join connections to a PCB using a single block. Typically headers have one side that is designed to be surface mounted and soldered onto the board with the other side allowing connections. Pins on the header can also be surrounded by a shroud to make the unit more secure, prevent pins from bending and allow locking.



Why use PCB headers?


PCB headers enable the user to make multiple electrical connections to a PCB using one connection block or cable. They're also easy to use. Simply solder a PCB header onto your board and you'll be ready to make connections to multiple pins. Typically each pin can be used for varying things such as data or power.


PCB headers also make a great introduction to learner electronics since they're simple to understand and have one primary function of allowing wire-to-board. Incorporating them into learning boards, kits and other accessories is popular with the likes of Arduino, Raspberry Pi and other single board computers.



Types of PCB headers:


PCB headers are made in both shrouded (where the connections are housed in a plastic case) and non-shrouded pin header types. Shrouded connectors are more robust and less likely to cause short circuits, but do take up more space on the PCB. Pin headers, by contrast, are easier to work with and suit a wider range of applications.



  • Single or double-row pin headers: The most commonly used types of PCB headers are single- or double-row pin headers. These are produced in matching male and female versions and are made from folded sheet metal with a square cross-section.

  • Machine-pin headers: Machine-pin headers have a circular cross-section, which fits more precisely into round PCB holes, providing a better electrical connection, greater durability and an increased lifespan.

  • Angled connectors: Headers can come in a variety of different angles. Some of the most common angles are straight, 90° and 180°. Angled headers can be useful if you need to reduce strain on a cable or need more room on your board verticall/horizontally.


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Description Price Series Pitch Number of Contacts Number of Rows Body Orientation Mating Pin Length Shrouded/Unshrouded Connector System Mounting Type Tail Pin Length CAD Drawing Termination Method Contact Material Contact Plating
RS Stock No. 447-6877
Mfr. Part No.43650-0215
BrandMolex
HK$7.89
Each (In a Pack of 5)
units
Micro-Fit 3.0 3.0mm 2 1 Straight - Shrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 161-7954
Mfr. Part No.43650-0215
BrandMolex
HK$3.748
Each (In a Tray of 3264)
units
Micro-Fit 3.0 3.0mm 2 1 Straight - Shrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 752-1797
Mfr. Part No.SM04B-GHS-TB(LF)(SN)
BrandJST
HK$5.296
Each (In a Pack of 5)
units
GH 1.25mm 4 - Right Angle - Shrouded Wire to Board Surface Mount - - Solder Phosphor Bronze Tin
RS Stock No. 172-5005
Mfr. Part No.SM04B-GHS-TB(LF)(SN)
BrandJST
HK$1.851
Each (On a Reel of 2500)
units
GH 1.25mm 4 - Right Angle - Shrouded Wire to Board Surface Mount - - Solder Phosphor Bronze Tin
RS Stock No. 251-8086
BrandRS PRO
HK$1.175
Each (In a Pack of 25)
units
- 2.54mm 2 1 Straight - Unshrouded - Through Hole - - Solder Brass Tin
RS Stock No. 670-6502
Mfr. Part No.87438-0343
BrandMolex
HK$4.398
Each (In a Pack of 10)
units
Pico-SPOX 1.5mm 3 1 Right Angle - Shrouded Wire to Board Surface Mount - - Solder Brass Tin
RS Stock No. 251-4315
BrandRS PRO
HK$33.428
Each (In a Pack of 5)
units
- 1.27mm 32 1 Straight - Unshrouded - Through Hole - - Solder Phosphor Bronze Gold
RS Stock No. 173-1004
Mfr. Part No.M20-9993645
BrandHARWIN
HK$8.915
Each (In a Bag of 200)
units
M20 2.54mm 36 1 Straight - Unshrouded Board to Board, Wire to Board Through Hole - - Solder Brass Gold
RS Stock No. 164-0028
Mfr. Part No.3-641208-3
HK$6.781
Each (In a Bag of 2000)
units
MTA-156 3.96mm 3 1 Straight - Unshrouded Wire to Board Through Hole - - Solder Copper Alloy -
RS Stock No. 547-3150
Mfr. Part No.M20-9993645
BrandHARWIN
HK$12.46
Each
units
M20 2.54mm 36 1 Straight 6.1mm Unshrouded Board to Board, Wire to Board Through Hole 3mm - Solder Brass Gold
RS Stock No. 680-1795
Mfr. Part No.3-641208-3
HK$13.03
Each (In a Pack of 5)
units
MTA-156 3.96mm 3 1 Straight - Unshrouded Wire to Board Through Hole - - Solder Copper Alloy Gold
RS Stock No. 702-0161
Mfr. Part No.811-S1-002-10-017101
BrandPreci-Dip
HK$12.40
Each
units
- 2.54mm 2 1 Straight - Shrouded - Through Hole - - Solder Brass Gold
RS Stock No. 471-042
BrandRS PRO
HK$25.32
Each
units
- 2.54mm 16 - Straight - Shrouded - Through Hole - - Solder Brass Gold
RS Stock No. 702-5015
Mfr. Part No.8PM-11-0002-02-131191
BrandPreci-Dip
HK$23.79
Each
units
- 2.54mm 2 1 Right Angle - Shrouded - Surface Mount - - Solder Brass Gold
RS Stock No. 161-7930
Mfr. Part No.22-05-1102
BrandMolex
HK$12.401
Each (In a Bag of 500)
units
Mini-Latch 2.5mm 10 1 Right Angle - Unshrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 687-7285
Mfr. Part No.22-05-1102
BrandMolex
HK$19.782
Each (In a Pack of 5)
units
Mini-Latch 2.5mm 10 1 Right Angle - Unshrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 170-7108
Mfr. Part No.22-27-2121
BrandMolex
HK$5.836
Each (In a Bag of 500)
units
KK 254 2.54mm 12 1 Straight - Unshrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 483-8540
Mfr. Part No.22-27-2121
BrandMolex
HK$7.749
Each (In a Pack of 10)
units
KK 254 2.54mm 12 1 Straight - Unshrouded Wire to Board Through Hole - - Solder Brass Tin
RS Stock No. 752-1696
Mfr. Part No.BM20B-SRDS-G-TF(LF)(SN)
BrandJST
HK$15.17
Each (In a Pack of 5)
units
SHD 1.0mm 20 - Straight - Shrouded Wire to Board Surface Mount - - Solder Phosphor Bronze Gold
RS Stock No. 515-1412
Mfr. Part No.B5B-EH-A (LF) (SN)
BrandJST
HK$2.02
Each (In a Pack of 10)
units
EH 2.5mm 5 1 Straight - Shrouded Wire to Board Through Hole - - Solder Brass Tin