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. 164-9210
Mfr. Part No.2199248-4
HK$5,659.50
Each (On a Tape of 11000)
units
Stainless Steel - 2A Surface Mount Gold - 3.9 x 2 x 1mm 1mm 3.9mm 2mm
RS Stock No. 173-0864
Mfr. Part No.S7261-45R
BrandHARWIN
HK$1.06
Each (On a Reel of 8000)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 3 x 2 x 1.5mm 1.5mm 3mm 2mm
RS Stock No. 788-4795
Mfr. Part No.S1711-46R
BrandHARWIN
HK$2.05
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. 173-0897
Mfr. Part No.S1791-42R
BrandHARWIN
HK$1.39
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. 788-4861
Mfr. Part No.S7121-42R
BrandHARWIN
HK$1.71
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. 164-9211
Mfr. Part No.2199248-5
HK$0.514
Each (On a Tape of 9000)
units
Stainless Steel - 2A Surface Mount Gold - 3.9 x 2 x 1.3mm 1.3mm 3.9mm 2mm
RS Stock No. 788-4802
Mfr. Part No.S1741-46R
BrandHARWIN
HK$1.62
Each (In a Pack of 10)
units
Phosphor Bronze EZ-BoardWare 6A Surface Mount Tin over Nickel - 5.4 x 3.1 x 2.5mm 2.5mm 5.4mm 3.1mm
RS Stock No. 172-0974
Mfr. Part No.2118716-2
HK$6.22
Each (In a Pack of 5)
units
Steel - - Surface Mount Nickel Silver - 16.5 x 16.5 x 3.6mm 3.6mm 16.5mm 16.5mm
RS Stock No. 164-9214
Mfr. Part No.2199249-4
HK$0.797
Each (On a Tape of 6000)
units
Copper Alloy - 2A Surface Mount Gold - 3.2 x 1.5 x 2.3mm 2.3mm 3.2mm 1.5mm
RS Stock No. 172-0953
Mfr. Part No.2118709-2
HK$9.38
Each (In a Pack of 4)
units
Steel - - Surface Mount Nickel Silver - 32 x 32 x 6mm 6mm 32mm 32mm
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. 187-0992
Mfr. Part No.2306654-3
HK$1.207
Each (On a Reel of 10)
units
Stainless Steel - 1A Surface Mount - 50mΩ 2.4 x 1 x 1.8mm 1.8mm 2.4mm 1mm
RS Stock No. 172-0914
Mfr. Part No.2118723-2
HK$3.613
Each (In a Box of 60)
units
Steel - - Surface Mount Nickel Silver - 37.33 x 34.18 x 2mm 2mm 37.33mm 34.18mm
RS Stock No. 172-0920
Mfr. Part No.2118727-2
HK$2.781
Each (In a Box of 100)
units
Steel - - Surface Mount Nickel Silver - 29.96 x 19.1 x 2mm 2mm 29.96mm 19.1mm
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. 173-0898
Mfr. Part No.S7061-42R
BrandHARWIN
HK$1.48
Each (On a Reel of 1500)
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. 161-3602
Mfr. Part No.S0991-46R
BrandHARWIN
HK$12,300.00
1 Reel of 15000
Reel(s)
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. 788-4808
Mfr. Part No.S1411-46R
BrandHARWIN
HK$1.958
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
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