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Contact Finger Spring
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Product Name : Contact Finger Spring

Product Description

An EMC shielding gasket is simply a connector of two opposing metallic surfaces which makes them appear electrically as one continuous RF absorber. Nearly every area of the electronic marketplace may require some form of electronic shielding. Primary uses commonly include:
  • RF gaskets
  • Grounding
  • Electrostatic discharge
  • EMI/RFI shielding for emissions and immunity
High strength copper alloys, and in particular Beryllium Copper, meets the tougher, more demanding specifications.
Product Benefits
Product Benefits
  • Superior attenuation
  • High electrical and RF conductivity
  • Excellent resistance to stress relaxation
  • Excellent corrosion resistance
  • Superior endurance life
  • Accepts various plating for dissimilar metals compatibility
  • Excellent performance at elevated temperatures
  • High uniform strain characteristics
  • Moisture and UV resistant
  • Low current conduction; i.e. ESD
  • Cost-effective
Product Features
  • Material: Beryllium Copper (Be-Cu C17200 1/2H)
  • Can specify: Phosphor Bronze (Ph-Cu) / stainless steel (SUS) / titanium copper (Ti-Cu)
  • Hardness: HM190 or HV300-340 or HV360-410
  • Surface treatment:
    Electroplating metal coatings such as: Bright Finish / Bright Gold / Bright Tin / Matte Tin
    Matte Nickel / Bright Nickel / Bright Electroless Nickel
  • Volume resistivity: ≦0.005Ω/ sq.in at 30% compressive rate
  • Compression Test: 30% compression 1,000 times change
  • Environmental Testing: -40 ℃ ~ 80 ℃ 72-hour cycle test three times tested by Polar
  • Shielding Effectiveness: 85dB (Average) from 30MHz - 3GHz
Contact Finger Spring assures tight RFI/EMI sealing of electronic enclosures containing high speed microprocessors.
Top view of electronic enclosure door with typical Contact Finger Spring installation.
Product Code
One hundreds more model specifications to choose, save designed to development time.
Standardized product design and cost-effective.
Safety stock and die, high production efficiency.
Cheap, fast shipping.
To prevent galvanic action and its corrosive effects at these points of electrical contact, we offer a complete selection of electronic grade plating. Such as Nickel Plating, Tin Plating, Gold Plating and surface oxidation treatment etc.
Part Number Specifications 【 Omega Shielding Products 】
No Snag Variable Slot Mount Series Part Series Unit : mm
A B C D E L ( Finger ) T
98-0063-19 8.13 2.79 4.75 0.46 4.29 298.8 ( 63 ) 0.06
UTF-022-19 9.40 3.50 5.20 0.70 4.50 326.9 ( 63 ) 0.08
No Snag Variable Slot Mount Series Part Series Unit : mm
A B C D E L ( Finger ) T
98-93401-02 8.10 2.80 4.75 0.46 4.29 456 ( 96 ) 0.06
98-93403-02 8.10 2.80 4.75 0.46 4.29 456 ( 96 ) 0.06
98-93405-02 8.10 2.80 4.75 0.46 4.29 456 ( 96 ) 0.06
No Snag Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-930-02 7.9 3.0 4.76 0.51 4.25 4.3 457 ( 96 ) 0.08
99-932-02 8.4 2.5 4.76 0.51 4.25 4.3 457 ( 96 ) 0.08
99-940-02 7.9 3.0 6.35 0.51 5.84 4.3 457 ( 96 ) 0.08
99-960-02 15.5 6.4 9.53 0.51 9.02 6.4 457 ( 96 ) 0.08
No Snag Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-993-02 15.2 3.0 3.18 0.64 2.54 6.9 406 ( --- ) 0.08
99-994-02 14 3.0 3.18 0.64 2.54 6.9 406 ( --- ) 0.08
No Snag Slot Mount Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-903-02 7.9 3.0 4.763 0.51 4.255 2.3 457 ( 96 ) 0.08
99-904-02 7.9 3.0 6.35 0.51 5.84 2.3 457 ( 72 ) 0.08
99-906-02 15.7 6.4 9.53 0.51 9.02 3.6 457 ( 48 ) 0.08
98-931-02 8.1 2.8 4.75 0.47 4.29 2.16 456 ( 96 ) 0.06
99-933-02 8.1 2.8 4.75 0.53 4.22 2.00 456 ( 96 ) 0.06
Fold Over Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-740-02 7.1 2.8 4.78 0.46 4.32 5.7 406 ( 85 ) 0.08
99-720-02 9.7 3.6 6.35 0.56 5.79 7.8 406 ( 64 ) 0.08
99-700-02 15.2 5.6 9.53 0.81 8.71 11.9 610 ( 64 ) 0.10
99-738-02 19.3 6.6 9.53 1.02 8.51 12.7 610 ( 64 ) 0.10
Enclosed Fold Over Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-761-02 7.1 2.3 4.76 0.46 4.3 5.3 410 ( 86 ) 0.08
99-741-02 9.7 3.0 4.78 0.46 4.32 6.1 406 ( 85 ) 0.08
99-721-02 13 3.8 6.35 0.56 5.79 9.4 406 ( 64 ) 0.08
99-701-02 19.3 5.8 9.53 0.81 8.71 13.2 610 ( 64 ) 0.10
Right Angle Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-745-02 7.1 2.8 4.78 0.46 4.32 6.1 406 ( 85 ) 0.08
99-725-02 9.7 3.6 6.35 0.56 5.79 8.1 406 ( 64 ) 0.08
99-705-02 15.2 5.3 9.53 0.87 8.71 12.7 610 ( 64 ) 0.10
99-300-02 21.3 6.4 9.53 1.02 8.51 12.2 305 ( 32 ) 0.10
Twist Right Angle Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-251-02 2 0.8 2.44 0.38 2.06 3.6 610 ( 250 ) 0.08
99-211-02 3.3 1.8 4.19 0.38 3.81 4.8 610 ( 146 ) 0.08
99-201-02 2.3 1.8 4.19 0.38 3.81 4.8 610 ( 146 ) 0.08
Twist Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-250-02 5.8 0.8 2.44 0.38 2.06 3.6 610 ( 250 ) 0.08
99-200-02 7.6 1.8 4.19 0.38 3.81 4.8 610 ( 146 ) 0.08
99-210-02 8.6 1.8 4.19 0.38 3.81 4.8 610 ( 146 ) 0.08
Bi Directional Clip On Series Unit : mm
Part Series A B C D E F L ( Finger ) T
99-440-02 10.2 2.3 12.7 1.02 5.33 3.3 406 ( 64 ) 0.08
99-441-02 10.9 3.0 12.7 1.02 5.33 3.3 406 ( 64 ) 0.08
Clip On Sub Series Part Series Unit : mm
A B C D E F L ( Finger ) T

☆99-811-02 7.6 2.5 4.78 1.19 3.58 5.3 406 ( 85 ) 0.10
☆99-821-02 10.7 2.0 4.78 1.19 3.58 7.4 406 ( 85 ) 0.10
★99-823-02 11.4 2.0 4.76 1.02 3.75 6.6 457 ( 96 ) 0.10
☆99-826-02 10.7 3.6 4.78 1.19 3.58 6.9 406 ( 85 ) 0.10
★99-828-02 10.7 3.6 4.78 1.02 3.75 6.6 457 ( 96 ) 0.10
☆99-831-02 11.4 2.5 4.77 1.19 3.58 6.9 406 ( 85 ) 0.10
★99-833-02 11.4 2.5 4.76 1.02 3.747 6.6 457 ( 96 ) 0.10
☆99-861-02 15.2 5.3 4.78 1.19 3.58 7.4 406 ( 85 ) 0.10
☆99-866-02 13.7 7.1 4.78 1.19 3.58 7.4 406 ( 85 ) 0.10
★99-871-02 7.6 2.5 4.77 1.19 3.58 5.3 406 ( 85 ) 0.10
☆99-872-02 7.6 2.8 4.77 1.19 3.58 5.3 406 ( 85 ) 0.10
☆99-874-02 7.6 2.5 4.77 1.19 3.58 5.3 406 ( 85 ) 0.10
Reverse Clip On Series Unit : mm
Part Series A B C D E F L ( Finger ) T
99-805-02 9.7 5.1 12.7 1.02 5.33 7.6 406 ( 85 ) 0.12
99-806-02 9.7 7.9 12.7 1.02 5.33 7.6 406 ( 85 ) 0.12
99-807-02 9.7 7.1 12.7 1.02 5.33 7.6 406 ( 85 ) 0.12
Twist Clip On Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-204-02 4.8 1.8 4.19 0.38 3.81 4.1 406 ( 97 ) 0.08
99-214-02 6.4 1.8 4.19 0.38 3.81 6.4 406 ( 97 ) 0.08
Mini Clip On Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-801-02 4.8 1.3 4.19 0.38 3.81 2.3 306 ( 73 ) 0.08
99-803-02 4.6 1.3 4.19 0.38 3.81 2.8 306 ( 73 ) 0.08
99-804-02 4.8 1.3 4.19 0.38 3.81 2.8 306 ( 73 ) 0.08
Spherical U Contact Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-128-02 11.2 5.1 2.39 0.81 1.57 8.1 406 ( 170 ) 0.20
99-129-02 11.2 5.1 2.39 0.81 1.57 8.1 406 ( 170 ) 0.25
99-138-02 11.2 4.1 2.39 0.81 1.57 8.1 406 ( 170 ) 0.20
99-139-02 11.2 4.1 2.39 0.81 1.57 8.1 406 ( 170 ) 0.25
99-160-02 6.9 2.8 1.91 0.64 1.27 5.5 407.7 ( 214 ) 0.12
99-170-02 6.9 4.1 1.91 0.64 1.27 5.5 407.7 ( 214 ) 0.12
99-180-02 4.8 2.3 1.59 0.51 1.08 3.2 406 ( 256 ) 0.10
99-190-02 4.8 2.8 1.59 0.51 1.08 3.2 406 ( 256 ) 0.10
U Contact Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-110-02 12.2 7.1 4.78 1.63 3.15 9.4 406 ( 85 ) 0.15
99-140-02 3.3 1.8 1.59 0.51 1.08 2.3 305 ( 85 ) 0.08
99-145-02 3.3 2.3 1.59 0.51 1.08 2.3 305 ( 85 ) 0.08
99-150-02 3.3 2.3 3.18 0.51 2.67 2.3 305 ( 96 ) 0.08
Spherical Flat Contact Series Part Series Unit : mm
A B C D E F L ( Finger ) T
99-617-02 22.6 3.3 4.78 1.22 3.56 15.9 406 ( 85 ) 0.12
99-618-02 18.5 3.3 4.78 1.22 3.56 11.7 406 ( 85 ) 0.12
99-623-02 8.6 1.0 1.6 0.51 1.09 3.3 406 ( 256 ) 0.10
99-634-02 13.5 1.3 1.91 0.64 1.27 5.6 407.7 ( 214 ) 0.12
99-636-02 9.7 1.3 1.91 0.64 1.27 1.8 407.7 ( 214 ) 0.12
99-637-02 19.8 2.5 2.39 0.81 1.57 8.1 406 ( 214 ) 0.25
Customized Product Specifications
  • 99-400-02-800
  • 99-270-02-169
  • 99-220-02-146
  • 99-881-02-96
  • 99-490-02-40
  • 99-485-02-40
  • 99-841-02-43
  • 99-320-02-32
  • 99-610-02-85
  • 99-613-02-85
  • 99-616-02-85
  • 99-702-02-64
There are more samples, please feel free to ask us.