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Conductive Elastomer Waveguide Gaskets Conductive Elastomer Waveguide Gaskets Conductive Elastomer Waveguide Gaskets Conductive Elastomer Waveguide Gaskets

Conductive Elastomer Waveguide Gaskets

Where to Buy

Parker Chomerics CHO-SEAL® conductive waveguide EMI gasket materials that provide effective shielding and pressure sealing for choke, cover and contact flanges.

Technical Specifications

  • Dimension A: Various
  • Dimension B: Various
  • Dimension C: -
  • Dimension D: -
  • Dimension E: -
  • Filler Material: Silver-Copper
  • Elastomer: Silicone & Expanded Cu Foil, Silicone
  • Durometer: 80 Shore A, 85 Shore A
  • Specific Gravity: 4.75, 3.5
  • Tensile Strength: 600 psi, 4.14 MPa, 400 psi, 2.76 MPa
  • Maximum Operating Temperature: 125 °C
  • Thermal Conductivity: 1.9 W/m-K, 1.8 W/m-K
  • Noise Shielding Level: 110 dB @ 2 GHz, 120 dB @ 2 GHz
  • Specifications Met: WR75, WR28, WR42, WR62, WR90, WR112, WR340, WR430, WR650, WR137, WR159, WR187, WR229, WR284, WR102
  • Flange Face Type: Cover, Flat Contact, Contact, Choke
  • Product Type: Molded
Safety Warning

Full Product Description

Parker Chomerics offers a selection of EMI gasket materials that provide effective EMI shielding and pressure sealing for choke, cover and contact flanges. Waveguides are used to transfer electromagnetic power efficiently from one point in space to another. Parker Chomerics waveguide gaskets ensure low insertion loss, low flange leakage, maximum heat transfer and minimum out gassing. We recommend CHO-SEAL® 1239 and 1212 conductive elastomers, as gaskets are reusable and will not scar flanges.

Cover flange and flat contact flange gaskets are die-cut from silver-plated copper filled silicone CHO-SEAL 1239 sheet stock 0.027 in. (0.69 mm) thick, ±0.005 in. (0.13 mm). Containing an expanded metal reinforcement to eliminate cold flow, these gaskets can be supplied with a slightly raised lip around the iris opening for high-pressure, high-power applications.

Choke flange and grooved contact flange gaskets are molded from CHO-SEAL® 1212 silver-filled silicone elastomer material, and are available with O- or D-cross sections. Please see the Parker Chomerics Waveguide Gaskets Datasheet for the material properties of both CHO-SEAL® 1239 and 1212. For applications in outdoor environments, contact Parker Chomerics Applications Engineering to discuss other CHO-SEAL® materials, e.g., CHO-SEAL® 1285 or 6502.

Features and Benefits:
• Customization offered for material and size requirements
• Excellent shielding effectiveness (>110 dB) across larger frequency range (100 MHz to 10 GHz)
• Gaskets are reusable and will not scar the flanges

CHO-SEAL® EMI shielded waveguide gaskets are available in standard flanges as follows:
1 - Die-Cut rectangular
2 - Die-Cut circular
3 - Molded rectangular, with “O” cross section
4 - Molded circular, with “O” cross section (O-rings)
5 - Molded circular, with “D” cross section (D-rings)
6 - Molded rectangular, with “D” cross section

Gaskets can also be custom designed to meet special requirements or less frequently used waveguide sizes (from WR 10 to WR 2300) and double-ridged waveguide.

Related Documents

Compliance, Certifications & Safety
Parker Chomerics Safety Data Sheets (SDS)
Product Compliance: China RoHS Compliant
Product Compliance: EU PFOS Compliant
Product Compliance: EU RoHS Compliant
Product Compliance: REACH SVHC Meets Requirements
Selector Guides
Find the Correct Conductive Elastomer EMI Gasket For You
Parker Chomerics Elastomers Selector Guide
Product Demos & Tutorials
Parker Chomerics Product Case Studies
Parker Chomerics Upcoming Webinars & On Demand Webinars
Communities, Blogs & Industry Links
Blog Post: Supporting Embedded Computing in Defense Aerospace Applications
Contact & Support Information
Request a Chomerics Product Sample
Find Your Local Parker Chomerics Sales Rep or Distributor
Request a Quote
Brochure: EMI/EMC and Product Safety Compliance Testing Services
Literature and Reference Materials
Application Note: Elastomer Load vs. Deflection Curves
Handbook: Chomerics Conductive Elastomer Engineering Handbook
Parker Chomerics Conductive Elastomer Waveguide Gaskets
Parker Chomerics Terms and Conditions
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Products Guide Type Flange Face Type Configuration Part Type
20-02-6510-1212 WR28 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K002
20-02-6515-1212 WR42 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K004
20-02-6520-1212 WR62 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K006
20-02-6525-1212 WR75 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K008
20-02-6531-1212 WR90 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K011
20-02-6530-1212 WR90 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K012
20-03-6630-1212 WR90 Contact Rectangular - "O" Cross Section MIL-DTL-M83528/013K013
20-02-6535-1212 WR102 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K014
20-02-6540-1212 WR112 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K017
20-03-6635-1212 WR112 Contact Rectangular - "O" Cross Section MIL-DTL-M83528/013K018
20-03-3686-1212 WR112 Choke Rectangular - "D" Cross Section N/A
20-02-6545-1212 WR137 Choke Circular - "O" Cross Section MIL-DTL-M83528/013K022
20-03-6645-1212 WR137 Contact Rectangular - "O" Cross Section MIL-DTL-M83528/013K023
20-03-3731-1212 WR137 Choke Rectangular - "D" Cross Section N/A
20-03-L767-1212 WR159 Choke Rectangular - "O" Cross Section N/A
20-03-3980-1212 WR159 Choke Rectangular - "D" Cross Section N/A
20-02-6555-1212 WR187 Choke Circular - "O" Cross Section MIL-DTL-M83528/013K029
20-03-6655-1212 WR187 Contact Rectangular - "O" Cross Section MIL-DTL-M83528/013K030
20-03-3561-1212 WR187 Choke Rectangular - "D" Cross Section N/A
20-03-L768-1212 WR229 Choke Rectangular - "O" Cross Section N/A
20-02-6565-1212 WR284 Choke Circular - "D" Cross Section MIL-DTL-M83528/013K036
20-03-6665-1212 WR284 Contact Rectangular - "O" Cross Section MIL-DTL-M83528/013K037
20-03-1560-1212 WR430 Choke Rectangular - "O" Cross Section N/A
20-03-6685-1212 WR430 Choke Rectangular - "D" Cross Section N/A
20-01-5000-1239 WR28 Cover Rectangular MIL-DTL-M83528/013G001
20-01-5005-1239 WR42 Cover Rectangular MIL-DTL-M83528/013G003
20-01-5010-1239 WR62 Cover Rectangular MIL-DTL-M83528/013G005
20-11-1683-1239 WR75 Cover Rectangular MIL-DTL-M83528/013G007
20-01-5115-1239 WR90 Flat Contact Rectangular MIL-DTL-M83528/013G010
20-11-5020-1239 WR112 Cover Rectangular MIL-DTL-M83528/013G015
20-01-5120-1239 WR112 Flat Contact Rectangular MIL-DTL-M83528/013G016
20-11-5025-1239 WR137 Cover Circular MIL-DTL-M83528/013G019
20-01-5125-1239 WR137 Flat Contact Rectangular MIL-DTL-M83528/013G020
20-01-5225-1239 WR137 Flat Contact Rectangular MIL-DTL-M83528/013G021
20-01-5130-1239 WR159 Flat Contact Rectangular MIL-DTL-M83528/013G024
20-01-5230-1239 WR159 Flat Contact Rectangular MIL-DTL-M83528/013G025
20-11-5035-1239 WR187 Cover Circular MIL-DTL-M83528/013G026
20-01-5135-1239 WR187 Flat Contact Rectangular MIL-DTL-M83528/013G027
20-01-5235-1239 WR187 Flat Contact Rectangular MIL-DTL-M83528/013G028
20-01-5140-1239 WR229 Flat Contact Rectangular MIL-DTL-M83528/013G031
20-01-5240-1239 WR229 Flat Contact Rectangular MIL-DTL-M83528/013G032
20-01-5045-1239 WR284 Cover Circular MIL-DTL-M83528/013G033
20-01-5145-1239 WR284 Flat Contact Rectangular MIL-DTL-M83528/013G034
20-01-5245-1239 WR284 Flat Contact Rectangular MIL-DTL-M83528/013G028
20-01-5050-1239 WR340 Flat Contact Rectangular MIL-DTL-M83528/013G038
20-01-5150-1239 WR340 Flat Contact Rectangular MIL-DTL-M83528/013G039
20-01-5055-1239 WR430 Flat Contact Rectangular MIL-DTL-M83528/013G040
20-01-5155-1239 WR430 Flat Contact Rectangular MIL-DTL-M83528/013G041
20-01-5060-1239 WR650 Flat Contact Rectangular MIL-DTL-M83528/013G042
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