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RF/EMI Shield Spiral Gasket

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  • RF/EMI Shield Spiral Gasket
  • RF/EMI Shield Spiral Gasket
  • RF/EMI Shield Spiral Gasket Packaging

Overview

  • Spiral wound RF/EMI shielding gasket is an ideal shielding material suitable for sensitive equipment requiring high electromagnetic shielding performance thanks to its excellent electromagnetic shielding effect.
     - Suitable for semiconductor manufacturing equipment (Plasma etching equipment), precision medical equipment, telecommunication equipment, military equipment, satellite equipment, etc.
  • High elasticity Sn/Ni plated BeCu or stainless steel sheet is spiraled to provide excellent elasticity, flexibility, and high shielding effectiveness.

Features

  • Superior RF/EMI shielding effectiveness of over 100 dB
  • Various compression forces by the ribbon strip thickness and spiral pitch, etc.
     (Standard force, Medium Force, Low Force)
  • Easy to cut and insert in the groove
  • O-Ring available (Precision spot welding processed)
  • RoHS Compliant

Details


Standard Force ("S" Series)

"S" Series SBT SBN SSN
Ribbon Strip Sn-plated BeCu Ni-plated BeCu Stainless Steel
Strip Material Beryllium Copper C17200 304H
Temper XHM -
Electrical Conductivity 17~28 %IACS -
Compression Force
(OD 3.2mm, 25% Comp, Kgf/in.)		 4.8 ±15% 4.8 ±15% 6.5 ±15%
String Outer Diameter (OD) 1.0 ~ 10.0 mm


Others ("P", "F" Series)

* Strip materials are the same as standard force's.

Series Medium Force (“P” Series) Low Force (“F” Series)
PBT PBN PSN FBT FBN FSN
Strip Material Sn-plated BeCu Ni-plated BeCu Stainless Steel Sn-plated BeCu Ni-plated BeCu Stainless Steel
Compression Force
(OD 3.2mm, 25% Comp, Kgf/in.)		 2.0±15% 2.0±15% 2.7±15% 0.4±15% 0.4±15% 0.6±15%
String Outer Diameter (OD) 1.0 ~ 10.0 mm 2.3 ~ 10.0 mm


P/N Examples

P/N Specifications
Force Ribbon strip Strip Outer Diameter (OD) Inner Cord (Core)
SBT-035W Standard Sn-plated BeCu 3.5 mm No inner cord
PBN-048W Medium Ni-plated BeCu 4.8 mm No inner cord
FSN-053W Low Stainless Steel 5.3 mm No inner cord


Shielding Effectiveness

[Tin-plated BeCu]
Tin-plated BeCu shielding effectiveness graph
[Stainless Steel]
Stainless steel shielding effectiveness graph


Groove Mounting

spiral gasket groove mounting


  • Recommended Groove Size
String OD [mm] Groove Size [mm]
Depth WB WT
1.0 0.75 1.35 0.96
2.0 1.50 2.70 1.92
2.2 1.65 2.97 2.11
2.4 1.80 3.24 2.30
2.6 1.95 3.51 2.50
2.8 2.10 3.78 2.69
3.0 2.25 4.05 2.88
3.2 2.40 4.32 3.07
3.4 2.55 4.59 3.26
3.6 2.70 4.86 3.46
3.8 2.85 5.13 3.65
String OD [mm] Groove Size [mm]
Depth WB WT
4.0 3.00 5.40 3.84
4.2 3.15 5.67 4.03
4.4 3.30 5.94 4.22
4.6 3.45 6.21 4.42
4.8 3.60 6.48 4.61
5.0 3.75 6.75 4.80
6.0 4.50 8.10 5.76
7.0 5.25 9.45 6.72
8.0 6.00 10.80 7.68
9.0 6.75 12.15 8.64
10.0 7.50 13.50 9.60

Applications

It is mainly used in precision equipment sensitive to electromagnetic waves, such as semiconductor manufacturing equipment, display production equipment, and telecommunication equipment.

  • spiral gasket in TXZ heater application
  • spiral gasket in a case cover
  • spiral gasket in a case cover

Product Support


How to choose a proper P/N

* Options avaiable by ribbon strip material, force, inner cord material, O-Ring, etc

Options Codes
Force S: Standard Force, P: Medium Force, F: Low Force
Strip Material BT: Sn plated BeCu, BN: Ni plated BeCu, SN: Stainless Steel
String OD (Ø) 010~100 (1.0~10.0mm)
Inner Cord (Core) W: Cordless, A: Silicone rubber solid, T: Silicone rubber tube, F: Silicone foam
O-Ring ID* R: O-Ring Inner Diameter(mm), * String type unless otherwise indicated

* O-Ring works: Excellent precise welding and durability by spot welding on connection parts
    (Depending on the string OD size and inner cord material, O-Ring’s ID may be limited.)



P/N Examples

EMI shield spiral gasket part number structure


P/N P/N Explanation
Spiral gasket product code Standard force, Sn-plated BeCu + Ø2.5mm, No inner cord
Spiral gasket product code Low force, Stainless steel + Ø4.0mm + O-Ring ID 50mm, No inner cord


Documentation

No data.