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$1.519
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$3.203
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. 187-0987
Mfr. Part No.2306454-3
HK$1.11
Each (On a Reel of 10)
units
Stainless Steel - 1A Surface Mount - 50mΩ 2.4 x 1 x 2.28mm 2.28mm 2.4mm 1mm
RS Stock No. 164-9210
Mfr. Part No.2199248-4
HK$0.52
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. 187-0932
Mfr. Part No.2306654-3
HK$0.556
Each (On a Reel of 7000)
units
Stainless Steel - 1A Surface Mount - 50mΩ 2.4 x 1 x 1.8mm 1.8mm 2.4mm 1mm
RS Stock No. 161-3704
Mfr. Part No.S1001-46R
BrandHARWIN
HK$2.802
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. 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. 173-0849
Mfr. Part No.S7231-45R
BrandHARWIN
HK$0.933
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. 161-3601
Mfr. Part No.S0981-46R
BrandHARWIN
HK$1.215
Each (On a Reel of 6000)
units
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. 173-0899
Mfr. Part No.S7051-42R
BrandHARWIN
HK$1.72
Each (On a Reel of 1400)
units
- S7 - - - - - - - -
RS Stock No. 164-8332
Mfr. Part No.1551575-5
HK$1.228
Each (On a Tape of 4000)
units
Stainless Steel - - Screw - - 3.26 x 1.3 x 3mm 3mm 3.26mm 1.3mm
RS Stock No. 164-9211
Mfr. Part No.2199248-5
HK$0.599
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. 788-4858
Mfr. Part No.S1941-46R
BrandHARWIN
HK$3.358
Each (In a Pack of 10)
units
Beryllium Copper EZ-BoardWare 9A Surface Mount Tin over Nickel - 9.59 x 5.7 x 7.25mm 7.25mm 9.59mm 5.7mm
RS Stock No. 123-5976
Mfr. Part No.2199248-5
HK$1.10
Each (In a Pack of 10)
units
Stainless Steel - 2A Surface Mount Gold - 3.9 x 2 x 1.3mm 1.3mm 3.9mm 2mm
RS Stock No. 122-3518
Mfr. Part No.S7231-45R
BrandHARWIN
HK$2.84
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. 187-0930
Mfr. Part No.2306334-3
HK$0.531
Each (On a Reel of 9000)
units
Stainless Steel - 1A Surface Mount - 50mΩ 2 x 1 x 1.2mm 1.2mm 2mm 1mm
RS Stock No. 185-9858
Mfr. Part No.1437259-6
HK$4.43
Each (On a Tape of 10)
units
Copper Alloy - 1.5A Surface Mount Nickel Plated - 7 x 2.5 x 4mm 4mm 7mm 2.5mm
RS Stock No. 187-0992
Mfr. Part No.2306654-3
HK$1.09
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. 123-5970
Mfr. Part No.3-2199250-4
HK$2.21
Each (In a Pack of 10)
units
Copper Alloy - 2A Surface Mount Gold - 3.45 x 1.5 x 3.6mm 3.6mm 3.45mm 1.5mm
RS Stock No. 164-9393
Mfr. Part No.3-2199250-5
HK$1.33
Each (In a Bag of 3000)
units
Copper Alloy - 2A Surface Mount Gold - 3.45 x 1.5 x 3.8mm 3.8mm 3.45mm 1.5mm
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