Grounding Contacts

Grounding contacts are surface mountable internal connectors used for circuit grounding (a return path for electric current) of SMT (surface mount technology) devices.

How do grounding contacts work?

Grounding contacts work by providing an electrical connection while also providing protection from static and EMI (electromagnetic interference) noise between a PCB (printed circuit board) and other electronic components, such as speakers, internal antennas, shield cams or secondary PCBs.

Grounding contacts come in a broad array of styles, sizes and heights, to ensure efficient EMI protection and contact. When mounted in a row, they can be used as an RFI (radio-frequency interference) shielding connection for cabinet enclosures and metal boxes. They are designed to maintain positive contact with the mating surface and allow for both sliding and wiping action.

Applications of grounding contacts

Grounding contacts are used in virtually every small PCB application. Some of the typical applications include:

  • MP3 players
  • Smartphones
  • GPS units
  • Tablets
  • PCs and laptops
  • Automotive
  • Industrial equipment
  • eReaders
  • Home electronic devices
  • Video and digital cameras

...
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Description Price Material Series Current Rating Fixing Method Contact Plating Contact Resistance Dimensions Height Length Width
RS Stock No. 172-0892
Mfr. Part No.2118709-4
HK$11.02
Each (On a Tape of 166)
units
Aluminium - - Surface Mount Nickel Silver - 32 x 32 x 6mm 6mm 32mm 32mm
RS Stock No. 161-3701
Mfr. Part No.S02-30200250
BrandHARWIN
HK$37.16
1 Pack of 1
Pack(s)
Copper Alloy S02 - Surface Mount - - 30 x 20 x 2.5mm 2.5mm 30mm 20mm
RS Stock No. 172-0924
Mfr. Part No.2118729-4
HK$11.644
Each (In a Box of 60)
units
Aluminium - - Surface Mount Nickel Silver - 44.6 x 31.1 x 2mm 2mm 44.6mm 31.1mm
RS Stock No. 187-0929
Mfr. Part No.2329497-1
HK$0.211
Each (On a Reel of 10000)
units
- - 1.5A Surface Mount - 30mΩ 2.7 x 1 x 1.15mm 1.15mm 2.7mm 1mm
RS Stock No. 186-4961
Mfr. Part No.1447009-5
HK$3.38
Each (On a Tape of 25)
units
Copper Alloy - 500mA Surface Mount - - 0.8mm - 2mm
RS Stock No. 123-5973
Mfr. Part No.2199249-4
HK$1.175
Each (In a Pack of 10)
units
Copper Alloy - 2A Surface Mount Gold - 3.2 x 1.5 x 2.3mm 2.3mm 3.2mm 1.5mm
RS Stock No. 788-4824
Mfr. Part No.S2711-46R
BrandHARWIN
HK$1.48
Each (In a Pack of 10)
units
Nickel Copper Alloy S - Surface Mount Tin 20mΩ 8.79 x 2.28 x 3.85mm 3.85mm 8.79mm 2.28mm
RS Stock No. 164-9392
Mfr. Part No.3-2199250-4
HK$3,960.90
1 Bag of 3000
Bag(s)
Copper Alloy - 2A Surface Mount Gold - 3.45 x 1.5 x 3.6mm 3.6mm 3.45mm 1.5mm
RS Stock No. 172-0916
Mfr. Part No.2118724-2
HK$5.594
Each (On a Tape of 186)
units
Steel - - Surface Mount Nickel Silver - 36.83 x 33.68 x 5.08mm 5.08mm 36.83mm 33.68mm
RS Stock No. 788-4868
Mfr. Part No.S7061-42R
BrandHARWIN
HK$2.52
Each (In a Pack of 10)
units
Titanium Copper Alloy EZ-BoardWare 4A Surface Mount Gold - 7 x 2.5 x 5.5mm 5.5mm 7mm 2.5mm
RS Stock No. 172-0931
Mfr. Part No.2118731-4
HK$15.17
Each
units
Aluminium - - Surface Mount Nickel Silver - 51.3 x 38.6 x 2mm 2mm 51.3mm 38.6mm
RS Stock No. 172-0941
Mfr. Part No.2118725-2
HK$5.63
Each (In a Pack of 5)
units
Steel - - Surface Mount Nickel Silver - 44.97 x 44.97 x 2mm 2mm 44.97mm 44.97mm
RS Stock No. 172-0952
Mfr. Part No.2118727-4
HK$8.10
Each (In a Pack of 5)
units
Aluminium - - Surface Mount Nickel Silver - 29.96 x 19.1 x 2mm 2mm 29.96mm 19.1mm
RS Stock No. 161-3600
Mfr. Part No.S02-30200250
BrandHARWIN
HK$2,936.03
Each
units
Copper Alloy S02 - Surface Mount - - 30 x 20 x 2.5mm 2.5mm 30mm 20mm
RS Stock No. 122-3518
Mfr. Part No.S7231-45R
BrandHARWIN
HK$1.774
Each (On a Tape of 10)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 2.5 x 1 x 1.28mm 1.28mm 2.5mm 1mm
RS Stock No. 173-0837
Mfr. Part No.S7121-42R
BrandHARWIN
HK$0.925
Each (On a Reel of 5000)
units
Titanium Copper Alloy EZ-BoardWare 4A Surface Mount Gold - 2.7 x 1.5 x 1.7mm 1.7mm 2.7mm 1.5mm
RS Stock No. 172-0938
Mfr. Part No.2118724-2
HK$10.40
Each (In a Pack of 4)
units
Steel - - Surface Mount Nickel Silver - 36.83 x 33.68 x 5.08mm 5.08mm 36.83mm 33.68mm
RS Stock No. 173-0863
Mfr. Part No.S7271-45R
BrandHARWIN
HK$1.097
Each (On a Reel of 7000)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 3.5 x 1.5 x 2mm 2mm 3.5mm 1.5mm
RS Stock No. 161-3704
Mfr. Part No.S1001-46R
BrandHARWIN
HK$2.607
Each (In a Pack of 25)
units
Stainless Steel S1001 - Surface Mount Tin over Nickel - 4.5 x 0.75 x 0.9mm 0.9mm 4.5mm 0.75mm
RS Stock No. 173-0819
Mfr. Part No.S2711-46R
BrandHARWIN
HK$0.77
Each (On a Reel of 1900)
units
Nickel Copper Alloy S - Surface Mount Tin 20mΩ 8.79 x 2.28 x 3.85mm 3.85mm 8.79mm 2.28mm