Edge Connectors

An edge connector or card edge connector is a female socket which mates directly with the edge part of single or double-sided PCB (Printed Circuit Board). The edge of the PCB has metallic tracks on it that engage with the contacts in the socket to provide an external electrical connection. In this way, the edge of the PCB acts as a male connector. The connector is held in place by the friction between the board and the socket


Features of an Edge Connector



  • Housings: The female edge connector consists of a plastic housing which has an opening on one side into which the edge of the PCB is inserted. Edge connector socket housings are often keyed to ensure that they are used the right way up preventing assembly error. Notches or bumps on the housing help to prevent an incorrect device from being inserted

  • Contacts: Inside the edge connector housing are contacts which connect with the metal traces on the edge of the PCB on insertion. The contacts are made of metal with a thin metallic plating that improves conductivity and prevents rust and corrosion

  • Termination Types: Edge connectors with IDC contacts can be terminated directly onto ribbon cable. Edge connectors with pins are soldered onto a PCB.

Variations


Edge connectors vary in terms of the following:



  • Rows: Edge connectors are available with one or 2 rows of contacts
  • Pitch: Edge connectors are available with a range of contact pitches
  • Number of Contacts: Edge connectors are available with different numbers of contacts
  • Orientation: Edge connectors are available with a vertical or right angle mounting orientation.

Where are edge connectors used?


Edge connectors are commonly used in personal computers for connecting expansion cards or daughtercards and computer memory to the motherboard. These expansion cards include PCI, PCI Express and AGP cards


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Description Price Body Orientation Gender Number of Contacts Number of Rows Pitch Mounting Type Termination Method Contact Plating Contact Material Current Rating Keying Way Voltage Rating Housing Material Series
RS Stock No. 471-266
BrandRS PRO
SGD21.36
Each
units
Right Angle Female to Female 20 2 2.54mm Edge Mount - Gold over Nickel Phosphor Bronze 1A - 350 V Glass Fibre Reinforced PET -
RS Stock No. 732-0196
Mfr. Part No.MM70-314-310B2-1-R500
BrandJAE
SGD9.64
Each
units
Straight Female 314 - 0.5mm Surface Mount - Gold over Nickel Copper Alloy 500mA Yes - - MM70
RS Stock No. 693-4202
Mfr. Part No.AMC25DRSS
BrandSullins
SGD75.429
Each (In a Pack of 100)
units
Straight Female 50 2 2.54mm Side Mount Solder Gold over Nickel Beryllium Copper 30A Yes 600 V dc PPS -
RS Stock No. 718-8245
Mfr. Part No.7-5530843-5
SGD3.72
Each
units
Straight Female 12 2 2.54mm Through Hole Solder Gold over Nickel Phosphor Bronze 3A - 400 V ac PET -
RS Stock No. 164-2660
Mfr. Part No.7-5530843-5
SGD3.028
Each (In a Tube of 24)
units
Straight Female 12 2 2.54mm Through Hole Solder Gold over Nickel Phosphor Bronze 3A - 400 V ac PET -
RS Stock No. 767-6926
Mfr. Part No.MEC1-160-02-L-D-A
BrandSamtec
SGD13.32
Each
units
Straight Female 120 2 1mm Surface Mount Solder Gold over Nickel Beryllium Copper 2A - 300 V ac Liquid Crystal Polymer MEC1
RS Stock No. 901-2046
Mfr. Part No.MEC6-150-02-L-D-RA1
BrandSamtec
SGD15.70
Each
units
Right Angle Female 100 2 0.635mm Surface Mount Solder Gold over Nickel, Tin over Nickel Phosphor Bronze 1.7A - 195 V ac Liquid Crystal Polymer MEC6-RA
RS Stock No. 864-3355
Mfr. Part No.1479305-1
SGD7.874
Each (In a Pack of 10)
units
Straight Male - 1 - Surface Mount Screw Gold over Nickel Phosphor Bronze - - - ABS -
RS Stock No. 162-1982
Mfr. Part No.10018783-10113TLF
SGD1.637
Each (In a Tray of 30)
units
Straight Female 164 2 2mm Through Hole Solder Gold over Nickel Copper Alloy - - - Nylon -
RS Stock No. 615-9530
Mfr. Part No.10018783-10113TLF
SGD2.018
Each (In a Pack of 5)
units
Straight Female 164 2 2mm Through Hole Solder Gold over Nickel Copper Alloy - - - Nylon -
RS Stock No. 335-599
Mfr. Part No.45719-0009
BrandMolex
SGD21.91
Each
units
Straight Female 8 2 - Through Hole Solder Gold over Nickel Copper Alloy 40A - 250 V Liquid Crystal Polymer BUS BAR SOCKET EXTREME POWER-EDGE
RS Stock No. 165-0653
Mfr. Part No.5530843-3
SGD2.705
Each (In a Box of 540)
units
Straight Female 36 2 2.54mm Through Hole Solder Gold over Nickel Phosphor Bronze 3A - 1 kV ac PET Standard Edge II
RS Stock No. 681-2238
Mfr. Part No.5530843-3
SGD3.98
Each
units
Straight Female 36 2 2.54mm Through Hole Solder Gold over Nickel Phosphor Bronze 3A - 1 kV ac PET Standard Edge II
RS Stock No. 864-3526
Mfr. Part No.5645235-4
SGD3.303
Each (In a Pack of 540)
units
Straight Female 18 (Dual) 2 2.54mm Through Hole Solder Gold over Nickel Phosphor Bronze 3A - 400 V ac Glass Filled Polyester Standard Edge II
RS Stock No. 901-2080
Mfr. Part No.MEC8-150-02-L-D-RA1
BrandSamtec
SGD14.02
Each
units
Right Angle Female 100 2 0.8mm Edge Mount Solder Gold over Nickel, Tin over Nickel Phosphor Bronze 2A - 265 V ac Liquid Crystal Polymer MEC8-RA
RS Stock No. 681-2161
Mfr. Part No.5145154-4
SGD6.56
Each
units
Straight Female 120 2 1.27mm Through Hole Solder Gold over Nickel Phosphor Bronze 1A - 203 V ac Thermoplastic -
RS Stock No. 165-0621
Mfr. Part No.5145154-4
SGD5.253
Each (In a Box of 210)
units
Straight Female 120 2 1.27mm Through Hole Solder Gold over Nickel Phosphor Bronze 1A - 203 V ac Thermoplastic -
RS Stock No. 901-2140
Mfr. Part No.MECF-20-02-L-DV-WT
BrandSamtec
SGD7.65
Each (In a Pack of 2)
units
Straight Female 40 2 1.27mm Surface Mount Solder Gold over Nickel, Tin over Nickel Beryllium Copper 3.5A Yes 280 V ac Liquid Crystal Polymer MECF
RS Stock No. 483-865
Mfr. Part No.BA000070000E000
BrandCinch
SGD14.05
Each
units
Straight - 18 2 3.96mm - Solder Gold over Nickel Brass 5A Yes - Glass Fibre Reinforced PET -
RS Stock No. 859-9523
Mfr. Part No.89898-311LF
SGD2.577
Each (In a Pack of 336)
units
Straight Female 22 2 2.54mm Surface Mount Solder Gold over Nickel Phosphor Bronze 2 (Load) A, 3 A - - Glass Filled Thermoplastic -