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. 173-0851
Mfr. Part No.S1761-42R
BrandHARWIN
HK$1.114
Each (On a Reel of 2000)
units
Titanium Copper Alloy EZ-BoardWare 4A Surface Mount Gold - 4.5 x 2.5 x 3.5mm 3.5mm 4.5mm 2.5mm
RS Stock No. 788-4811
Mfr. Part No.S1761-42R
BrandHARWIN
HK$1.225
Each (In a Pack of 10)
units
Titanium Copper Alloy EZ-BoardWare 4A Surface Mount Gold - 4.5 x 2.5 x 3.5mm 3.5mm 4.5mm 2.5mm
RS Stock No. 122-3522
Mfr. Part No.S7271-45R
BrandHARWIN
HK$1.967
Each (On a Tape of 10)
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. 172-0967
Mfr. Part No.2118710-4
HK$18.24
Each
units
Aluminium - - Surface Mount Nickel Silver - 38.1 x 25.4 x 6mm 6mm 38.1mm 25.4mm
RS Stock No. 788-4805
Mfr. Part No.S1721-46R
BrandHARWIN
HK$1.751
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. 172-0930
Mfr. Part No.2118731-2
HK$5.63
Each (In a Pack of 5)
units
Steel - - Surface Mount Nickel Silver - 51.3 x 38.6 x 2mm 2mm 51.3mm 38.6mm
RS Stock No. 161-3703
Mfr. Part No.S0991-46R
BrandHARWIN
HK$2.124
Each (In a Pack of 25)
units
Stainless Steel S0991 - Surface Mount Tin over Nickel - 6.5 x 0.9 x 1.38mm 1.38mm 6.5mm 0.9mm
RS Stock No. 172-0902
Mfr. Part No.2118715-2
HK$2.535
Each (In a Box of 100)
units
Steel - - Surface Mount Nickel Silver - 16.9 x 16.9 x 2mm 2mm 16.9mm 16.9mm
RS Stock No. 173-0867
Mfr. Part No.S1721-46R
BrandHARWIN
HK$1.12
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. 123-5974
Mfr. Part No.2199249-3
HK$1.061
Each (In a Pack of 10)
units
Copper Alloy - 2A Surface Mount Gold - 3.2 x 1.5 x 2mm 2mm 3.2mm 1.5mm
RS Stock No. 161-3599
Mfr. Part No.S02-20150300
BrandHARWIN
HK$2,205.19
Each
units
Copper Alloy S02 - Surface Mount - - 20 x 15 x 3mm 3mm 20mm 15mm
RS Stock No. 173-0840
Mfr. Part No.S7251-45R
BrandHARWIN
HK$0.95
Each (On a Reel of 8000)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 3 x 1.5 x 1.5mm 1.5mm 3mm 1.5mm
RS Stock No. 172-0943
Mfr. Part No.2118725-4
HK$16.37
Each
units
Aluminium - - Surface Mount Nickel Silver - 44.97 x 44.97 x 2mm 2mm 44.97mm 44.97mm
RS Stock No. 172-0899
Mfr. Part No.2118713-2
HK$2.396
Each (In a Box of 100)
units
Steel - - Surface Mount Nickel Silver - 14.06 x 13.1 x 2mm 2mm 14.06mm 13.1mm
RS Stock No. 788-4883
Mfr. Part No.S7051-42R
BrandHARWIN
HK$2.18
Each (In a Pack of 10)
units
- S7 - - - - - - - -
RS Stock No. 185-9255
Mfr. Part No.1437259-6
HK$3.142
Each (On a Tape of 2000)
units
Copper Alloy - 1.5A Surface Mount - - 7 x 2.5 x 4mm 4mm 7mm 2.5mm
RS Stock No. 172-0895
Mfr. Part No.2118711-2
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. 161-3601
Mfr. Part No.S0981-46R
BrandHARWIN
HK$7,119.00
1 Reel of 6000
Reel(s)
Stainless Steel S0981 - Surface Mount Tin over Nickel - 4.7 x 4.7 x 1.4mm 1.4mm 4.7mm 4.7mm
RS Stock No. 172-0954
Mfr. Part No.2118721-4
HK$10.14
Each (In a Pack of 5)
units
Aluminium - - Surface Mount Nickel Silver - 38.6 x 25.9 x 2mm 2mm 38.6mm 25.9mm
RS Stock No. 161-3687
Mfr. Part No.S02-20150300
BrandHARWIN
HK$30.09
1 Pack of 1
Pack(s)
Copper Alloy S02 - Surface Mount - - 20 x 15 x 3mm 3mm 20mm 15mm
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