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$1.246
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. 788-4824
Mfr. Part No.S2711-46R
BrandHARWIN
HK$1.60
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. 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. 788-4795
Mfr. Part No.S1711-46R
BrandHARWIN
HK$2.262
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$1.625
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. 173-0863
Mfr. Part No.S7271-45R
BrandHARWIN
HK$1.141
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. 173-0894
Mfr. Part No.S7061-46R
BrandHARWIN
HK$1.578
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. 788-4883
Mfr. Part No.S7051-42R
BrandHARWIN
HK$2.18
Each (In a Pack of 10)
units
- S7 - - - - - - - -
RS Stock No. 173-0830
Mfr. Part No.S1741-46R
BrandHARWIN
HK$0.928
Each (On a Reel of 2500)
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. 173-0898
Mfr. Part No.S7061-42R
BrandHARWIN
HK$1.671
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. 173-0864
Mfr. Part No.S7261-45R
BrandHARWIN
HK$1.185
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. 173-0867
Mfr. Part No.S1721-46R
BrandHARWIN
HK$1.207
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. 161-3601
Mfr. Part No.S0981-46R
BrandHARWIN
HK$10,863.00
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. 122-3517
Mfr. Part No.S7221-45R
BrandHARWIN
HK$1.774
Each (On a Tape of 10)
units
Titanium Copper Alloy EZ-BoardWare 1A Surface Mount Gold 50mΩ 2.6 x 1 x 1.23mm 1.23mm 2.6mm 1mm
RS Stock No. 122-3515
Mfr. Part No.S7061-46R
BrandHARWIN
HK$2.571
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. 173-0862
Mfr. Part No.S7241-45R
BrandHARWIN
HK$1.141
Each (On a Reel of 8000)
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. 161-3603
Mfr. Part No.S1001-46R
BrandHARWIN
HK$32,589.00
1 Reel of 20000
Reel(s)
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. 788-4868
Mfr. Part No.S7061-42R
BrandHARWIN
HK$2.569
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. 173-0840
Mfr. Part No.S7251-45R
BrandHARWIN
HK$0.988
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