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. 788-4861
Mfr. Part No.S7121-42R
BrandHARWIN
TWD7.50
Each (In a Pack of 10)
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. 788-4820
Mfr. Part No.S1751-46R
BrandHARWIN
TWD6.50
Each (In a Pack of 10)
units
Brass - - Surface Mount - - 3.25 x 2 x 1.65mm 2mm 3.25mm 1.65mm
RS Stock No. 173-0867
Mfr. Part No.S1721-46R
BrandHARWIN
TWD4.30
Each (On a Reel of 5000)
units
Beryllium Copper S - Surface Mount Tin 40mΩ 5.08 x 1.07 x 2.23mm 2.23mm 5.08mm 1.07mm
RS Stock No. 788-4805
Mfr. Part No.S1721-46R
BrandHARWIN
TWD9.10
Each (In a Pack of 10)
units
Beryllium Copper S - Surface Mount Tin 40mΩ 5.08 x 1.07 x 2.23mm 2.23mm 5.08mm 1.07mm
RS Stock No. 173-0841
Mfr. Part No.S1751-46R
BrandHARWIN
TWD3.50
Each (On a Reel of 2500)
units
Brass - - Surface Mount - - 3.25 x 2 x 1.65mm 2mm 3.25mm 1.65mm
RS Stock No. 173-0837
Mfr. Part No.S7121-42R
BrandHARWIN
TWD3.60
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. 161-3687
Mfr. Part No.S02-20150300
BrandHARWIN
TWD117.00
1 Pack of 1
Pack(s)
Copper Alloy S02 - Surface Mount - - 20 x 15 x 3mm 3mm 20mm 15mm
RS Stock No. 788-4808
Mfr. Part No.S1411-46R
BrandHARWIN
TWD8.70
Each (In a Pack of 10)
units
Beryllium Copper S - Surface Mount Tin 20mΩ 8.79 x 2.28 x 3.85mm 3.85mm 8.79mm 2.28mm
RS Stock No. 788-4874
Mfr. Part No.S7111-42R
BrandHARWIN
TWD10.80
Each (In a Pack of 10)
units
- - - - - - - - - -
RS Stock No. 788-4868
Mfr. Part No.S7061-42R
BrandHARWIN
TWD11.80
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. 788-4870
Mfr. Part No.S7041-42R
BrandHARWIN
TWD12.50
Each (In a Pack of 10)
units
- - - - - - - - - -
RS Stock No. 122-3515
Mfr. Part No.S7061-46R
BrandHARWIN
TWD11.50
Each (On a Tape of 10)
units
Beryllium Copper EZ-BoardWare 4A Surface Mount Tin over Nickel 20mΩ 6.95 x 2.5 x 5.57mm 5.57mm 6.95mm 2.5mm
RS Stock No. 173-0849
Mfr. Part No.S7231-45R
BrandHARWIN
TWD3.50
Each (On a Reel of 10000)
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. 173-0842
Mfr. Part No.S1761-46R
BrandHARWIN
TWD5.50
Each (On a Reel of 2000)
units
Titanium Copper Alloy EZ-BoardWare 4A Surface Mount Tin over Nickel - 4.5 x 2.5 x 3.5mm 3.5mm 4.5mm 2.5mm
RS Stock No. 173-0894
Mfr. Part No.S7061-46R
BrandHARWIN
TWD6.00
Each (On a Reel of 1200)
units
Beryllium Copper EZ-BoardWare 4A Surface Mount Tin over Nickel 20mΩ 6.95 x 2.5 x 5.57mm 5.57mm 6.95mm 2.5mm
RS Stock No. 122-3519
Mfr. Part No.S7241-45R
BrandHARWIN
TWD9.40
Each (On a Tape of 10)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 3 x 1.5 x 1.3mm 1.3mm 3mm 1.5mm
RS Stock No. 173-0897
Mfr. Part No.S1791-42R
BrandHARWIN
TWD5.30
Each (On a Reel of 2000)
units
Titanium Copper Alloy EZ-BoardWare 3A Surface Mount Gold - 7 x 2.05 x 4mm 4mm 7mm 2.05mm
RS Stock No. 788-4824
Mfr. Part No.S2711-46R
BrandHARWIN
TWD5.50
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. 122-3518
Mfr. Part No.S7231-45R
BrandHARWIN
TWD10.70
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. 161-3701
Mfr. Part No.S02-30200250
BrandHARWIN
TWD140.00
1 Pack of 1
Pack(s)
Copper Alloy S02 - Surface Mount - - 30 x 20 x 2.5mm 2.5mm 30mm 20mm