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. 403-803
Mfr. Part No.50-52SNL-ATF
BrandCinch
HK$79.96
Each
units
Straight - 49 2 2.54mm PCB Mount Solder Gold over Nickel Brass 3A Yes - Glass Fibre Reinforced PET -
RS Stock No. 681-1711
Mfr. Part No.1-966194-3
HK$2.607
Each (In a Pack of 10)
units
Right Angle Female 3 1 2.5mm Cable Mount IDT Tin Phosphor Bronze - - - PBT -
RS Stock No. 163-9943
Mfr. Part No.1-966194-3
HK$1.40
Each (In a Box of 4480)
units
Right Angle Female 3 1 2.5mm Cable Mount IDT Tin Phosphor Bronze - - - PBT -
RS Stock No. 165-0620
Mfr. Part No.5120521-2
HK$39.176
Each (On a Reel of 650)
units
Straight Female 84 - 1mm Surface Mount Solder Gold over Nickel Copper Alloy - - - Thermoplastic -
RS Stock No. 680-5255
Mfr. Part No.5120521-2
HK$58.67
Each
units
Straight Female 84 - 1mm Surface Mount Solder Gold over Nickel Copper Alloy - - - Thermoplastic -
RS Stock No. 767-7042
Mfr. Part No.PCIE-098-02-F-D-TH
BrandSamtec
HK$26.50
Each
units
Straight Female 98 2 1mm Through Hole Solder Gold over Nickel Phosphor Bronze 2.5A - - Nylon PCIE
RS Stock No. 901-2033
Mfr. Part No.MEC6-130-02-L-D-RA1
BrandSamtec
HK$79.34
Each (In a Pack of 2)
units
Right Angle Female 60 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. 885-9245
Mfr. Part No.50-44SN-1
HK$72.08
Each
units
- Male - - - - Solder Gold Spring Brass - - - - -
New
RS Stock No. 196-8101
Mfr. Part No.2-2340324-1
HK$64.785
Each (In a Tray of 864)
units
- - - - - - - - - - - - - -
RS Stock No. 164-0053
Mfr. Part No.5120524-1
HK$47.618
Each (On a Reel of 300)
units
Straight Female 64 - 1mm Surface Mount Solder Gold over Nickel Phosphor Bronze 500mA - - Thermoplastic -
RS Stock No. 767-6884
Mfr. Part No.MB1-120-01-L-S-01-SL
BrandSamtec
HK$80.82
Each
units
Straight Female 20 1 1mm Surface Mount Solder Gold over Nickel Beryllium Copper - - - Liquid Crystal Polymer MB1
RS Stock No. 180-2447
Mfr. Part No.HSEC8-120-01-S-DV-A-K-TR
BrandSamtec
HK$34.409
Each (On a Reel of 275)
units
Vertical Female 40 2 0.8mm Surface Mount Solder Gold Beryllium Copper 2.8A - - Liquid Crystal Polymer HSEC8-DV
RS Stock No. 200-0384
Mfr. Part No.MEC1-140-02-F-D-A
BrandSamtec
HK$61.457
Each (In a Tube of 12)
units
Vertical Female - 1 1mm Surface Mount - - - 2.2A - - - MEC1
RS Stock No. 681-1522
Mfr. Part No.1-5145154-2
HK$43.12
Each
units
Straight Female 120 2 1.27mm Through Hole Solder Gold over Nickel Phosphor Bronze 1A - 203 V ac Thermoplastic -
RS Stock No. 864-3361
Mfr. Part No.1651929-1
HK$71.694
Each (In a Pack of 96)
units
Straight Female 30 2 2.5mm Through Hole Solder Gold over Nickel Copper Alloy 25A - 250 V ac Glass Filled Polyester -
RS Stock No. 164-0054
Mfr. Part No.5120527-1
HK$46.001
Each (On a Reel of 400)
units
Straight Male 64 - 1mm Surface Mount Solder Gold over Nickel Copper Alloy 500mA - 100 V ac Liquid Crystal Polymer -
RS Stock No. 180-4645
Mfr. Part No.MEC1-108-02-S-D-A
BrandSamtec
HK$52.468
Each (In a Tube of 45)
units
Vertical Female 16 2 1mm Surface Mount Solder Gold Beryllium Copper 2.2A - 300 V ac Liquid Crystal Polymer MEC1
RS Stock No. 200-0411
Mfr. Part No.MECT-110-01-MM-D-RA1
BrandSamtec
HK$20.758
Each (In a Tube of 52)
units
Vertical - 10 2 0.88 - - - - 2A - - - MECT
RS Stock No. 176-5845
Mfr. Part No.PS4-3.175T
BrandHirose
HK$203.26
Each
units
Vertical Female 1 1 - Screw Mount Screw Silver Plated Copper Alloy 150A - 600 V ac/dc Synthetic Resin PS4
RS Stock No. 888-2535
Mfr. Part No.009159004001106
BrandAVX
HK$4.914
Each (In a Pack of 2250)
units
- - - - - - Surface Mount Tin Beryllium Copper 3A - 250 V ac Nylon 9159