Electrical Stability (ohm-cm, max.) Heat Aging Resistance After

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Geraldine Dean
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1 CONDUCTIVE ELASTOMER WAVEGUIDE GASKETS Waveguide Gaskets For effective EMI shielding and pressure sealing for choke, cover and contact flanges, Chomerics waveguide gaskets ensure low insertion, low flange leakage, maximum heat transfer and minimum outgassing. Made from CHO-SEAL 29 and 22 conductive elastomers, the gaskets are reusable and will not scar flanges. flange and flat contact flange gaskets are die-cut from CHO-SEAL 29 sheet stock in. (0.69 mm) thick, ±0.00 in. (0.08 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. RF/pressure seals for waveguide cover flanges are also available in Gask-O-Seal form. Gask-O-Seal waveguide gaskets consist of thin metal retainers which incorporate elastomer seals on each side, and raised knurls which bite into flange surfaces to provide good electrical contact. For more information on Gask-O-Seal products, contact Parker Hannifin, Cleveland, OH, and ask for Gask-O-Seal catalog #OSD-64. flange and grooved contact flange gaskets are molded from CHO-SEAL 22 material, and are available with O- or D-cross sections. Properties of CHO-SEAL 22 and 29 materials are shown in the table below. Standard Waveguide Gaskets The gaskets listed in the following tables will fit the standard UG, CPR, and CMR flanges shown. The numbers through 6 listed in the gasket configuration column of the tables indicate the style of gasket, as follows: Die-cut rectangular 2 Die-cut circular Molded rectangular, with O cross section 4 Molded circular, with O cross section (O-rings) 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 0 to WR 200). CHO-SEAL 29 material is not available in sheet form. SPECIFICATIONS CHO-SEAL 22 CHO-SEAL 29 Type (Ref: MIL-G-828) K G Volume Resistivity (ohm-cm, max) as supplied (w/o PSA) Hardness (Shore A ±) ±7 Specific Gravity (±0.2). 4.7 ±0.7 Tensile Strength psi (MPa), min. 400 (2.76) 600 (4.4) Elongation (percent, min/max) 00 / / NA Tear Strength (lb/in, min) Compression Set, C (percent, max) Not Applicable Low Temperature Flex, TR0 ( C, minimum) 4 Not Applicable Continuous Use Temperature Range ( C) to 2 to 2 Shielding Effectiveness (db, min.) 200 khz (H Field) 00 MHz (E Field) 00MHz (E Field) 2 GHz (Plane Wave) 0 GHz (Plane Wave) Electrical Stability (ohm-cm, max.) Heat Aging Vibration During Resistance After Post Tensile Set Volume Resistivity 0.00 NA EMP Survivability (ka per in. perimeter) >0.9 >0.9 NA = Not Applicable

2 Ordering Procedure For standard gaskets, select the part number from Tables For custom configurations, gasket and waveguide flange drawings must be provided, and part numbers will be assigned by Chomerics. Table 4 Use Table 4 to select part numbers. Refer to Tables -20 on following pages for Waveguide Gasket dimensions. WAVEGUIDE GASKETS Frequenc y Range (GHz) Band EIA Waveguide Size JAN Designatio n UG CPR CMR Flange Type Gasket Configuratio n* Chomerics Part Number MIL P/N: M828/ 0 [ ]-( ) Ka WR28 RG-96/.U (Silver) UG-99/U UG-600A/U ** [G]-(00) [K]-(002) K WR42 RG-/U UG-9/U UG-97/U ** [G]-(00) RG-2/U UG-96A/U [K]-(004) UG-98A/U Ku WR62 RG-9/U UG-49/U ** [G]-(00) 0 RG-07/U (Silver) UG-4A/U [K]-(006) WR [G]-(007) [K]-(008) UG-9/U [G]-(009) UG-/U X WR90 RG-2/U RG-67/U UG-76/U UG-77/U UG-6A/U UG-40A/U CPR-90F ** [G]-(00) [K]-(0) UG-6B/U [K]-(02) UG-40B/U UG-60/U UG-6/U CPR-90G [K]-(0) WR02 UG-494/U [K]-(04) X WR2 RG-/U RG-68/U UG-/U UG-8/U UG-74/U UG-7/U UG-2B/U UG-7B/U UG-8/U UG-9/U CPR-2F CPR- 2G CPR2G/ F ChokConta c / ** [G]-(0) [G]-(06) K]-(07) [K]-(08) UG-44/U [G]-(09) UG-44/U UG-72/U CPR-7F ** [G]-(020) RG-0/U UG-7/U Xb WR7 RG-06/U CMR ** [G]-(02) UG-4B/U [K]-(022)

3 UG-440B/U UG-6/U UG-7/U CPR-7G CPR- 7G/F / [K]-(02) WR9 UG-70/U UG-7/U CPR-9F CPR-9G CPR- 9G/F CMR-9 / ** ** 20-0-L [G]-(024) [G]-(02).9.8 C WR87 RG-49/U RG-9/U UG-49A/U UG-407/U UG-728/U UG-729/U UG-48C/U UG-406B/U UG-2/U UG-/U CPR-87F CPR-87G CMR ** ** [G]-(026) [G]-(027) [G]-(028) [G]-(029) [G]-(00) WR229 UG-726/U UG-727/U CPR-229F CPR-229G CMR ** ** 20-0-L [G]-(0) [G]-(02).6.9 S WR284 RG-48/U RG-7/U UG-/U UG-84/U UG-724/U UG-72/U UG-4B/U UG-8A/U UG-48/U UG-49/U CPR-284F CPR-284G CMR ** ** ** [G]-(0) [G]-(04) [G]-(0) [K]-(06) [K]-(07) 2.2. WR40 RG-2/U RG-2/U UG-/U UG-4/U CPR-40F ** ** [G]-(08) [G]-(09) W WR40 RG-04/U RG-0/U UG-4A/U UG-47A/U CPR-40F CRP-40G CPR- 40G/F / ** XXXX** [G]-(040) [G]-(04).2.7 L WR60 RG-69/U RG-0/U UG-47A/U UG-48A/U ** [G]-(042) * Number corresponds to configuration type, Tables -20.

4 ** This gasket will seal a maximum pressure of 20 psig. For systems pressurized above this limit, a high-pressure (raisedlip) version is available. To specify, change rd digit in Part Number to. Letter in bracket is MIL-G-828B material type (G or K). Number in parentheses is MIL-G 828B dash number. Insert them (without brackets or parentheses) to complete MIL P/N. Modified O cross section. Modified D cross section Note: Raised portion will be a nominal of 0.87 in. (4.7 mm). Thickness (T ) is in. (0.0 mm) ±0.002 in. (0.0 mm). This raised area applies only to part numbers with a third digit of. Table. Die-Cut Rectangular Configurations A B C D E* T Chomerics P/N** MIL P/N: ±0.0 (0.8) ±0.0 (0.8) +0.0 (0.8) ±0.00 (0.2) ±.00 (0.08) M828/ 0G-( ).496 (8.00) 0.70 (9.0) 0.87 (22.2). (.).62 (4.28).87 (47.6).70 (9.2) 4.88 (06.8).48 (8.).94 (40.49).70 (44.4).97 (49.20) 2.48 (6.9).00 (88.90) 2.70 (69.8).496 (8.00) 0.70 (9.0) 0.87 (22.2). (.).62 (4.28).87 (47.6).440 (8.8) 6.44 (6.4) (220.68) (.9) 2.00 (6.0) (68.2).88 (80.98) 2.00 (6.0).87 (98.4) (9.0) 0.4 (.68) 0.7 (4.4) 0.60 (6.00) 0.90 (22.99).0 (28.70).70 (4.4) 2.60 (4.86).260 (82.80) 0.40 (0.29) 0.0 (2.8) 0.6 (6.08) 0.80 (20.4).880 (47.7). (29.4) 0.8 (9.78) 0.28 (7.24) 0.42 (0.80) 0.20 (8.) 0.40 (0.29) 0.0 (2.8).40 (86.6) 4.0 (09.47) 6.0 (6.) 0.90 (22.99).0 (28.70).80 (.0).600 (40.64) (22.) 2.00 (8.42) 0. (.94) 0.6 (2.9) 0.6 (2.9) 0.40 (.6) 0.69 (4.29) 0.80 (4.7) (6.7) 0.20 (6.) 0.28 (7.4) 0.20 (6.) 0.28 (8.) 0.69 (4.29) 0.7 (4.4) (.2) 0.27 (6.) (6.86) (007) (00) (00) (00) (009) (0) (08) (040) (042) (00) (06) (020) (024) (027) (0)

5 4.00 (4.0).70 (9.2) 6.44 (6.4). ( (44.4).784 (4.) (0.80).000 (76.20).48 (8.) 4.88 (06.8) 2.28 (7.94) 2.00 (6.0) 2.78 (70.64).6 (80.6) 2.80 (72.9).70 (4.4) 4.0 (09.47) 0.62 (6.0) (20.2) (22.40). (29.4).0 (4.29).40 (86.6) 2.60 (4.86).82 (.0).600 (40.64).882 (47.80) 2.00 (8.42) 0.0 (.8) 0.60 (4.06) 0.0 (.8) 0.6 (.96) 0.4 (.8) 0.0 (.8) (04) (09) (04) (02) (02) (028) (02) (4.7) (0) (7.64) (9.4) (72.9) (4.29) 0.88 (4.78) * Hole locations conform to holes in standard waveguide flanges identified in preceding 2 pages. Where two hole diameters are given, flange has holes of two different diameters. ** Number in parentheses is MIL-G-828B dash number, which should be inserted (without parentheses) at end of MIL P/N. (mm dimensions in parentheses) Note: Raised portion will be a nominal of 0.87 in. (4.7 mm). Thickness (T ) is in. (0.0 mm) ±0.002 in. (0.0 mm). This raised area applies only to part numbers with a third digit of. Table 6 2. DIE-CUT CIRCULAR CONFIGURATIONS A B C D* T Chomerics P/N** ±0.0 (0.8).2 (79.8).62 (92.08).2 (4.9) +0.0 (0.8) (6.0) (22.40).0 (4.29).82 (.0).882 (47.80) 2.80 (72.9) ±.00 (0.8) 0.24 (.94) 0.24 (.94) (7.7) ±.00 (0.08) MIL P/N: M828/0G- ( ) (09) (026) (0) * Hole locations conform to holes in standard waveguide flanges identified in Table 4 pages 7-8. Number in parentheses is MIL-G-828B dash number, which should be inserted (without parentheses) at end of MIL P/N.

6 Table 7. MOLDED RECTANGULAR WITH O CROSS SECTION Chomerics P/N A B T (dia.) H MIL P/N: M828/0K- ( ).68(4.7) 0.868(22.0) 0.0(2.62) (0).66(4.0) 0.99(2.7) 0.0(2.62) (08).866(47.40).6(28.) 0.0(2.62) (02) 2.449(62.20).449(6.80) 0.9(.) (00).4(87.66).9(49.6) 0.9(.) (07) 2.67(.04).72(4.8) 0.9(.) 20-0-L (72.82).722(4.74) 0.9(.) 20-0-L (8.6) 2.0(6.7) 0.20(6.) 0.44(6.8) * * Modified O Cross Section Number in parentheses is MIL-G-828B dash number, which should be inserted (without parentheses) at end of MIL P/N. Table 8 4. MOLDED CIRCULAR WITH O CROSS SECTION Chomerics P/N D (I.D.) T MIL P/N: M828/0K- ( ) 2.0 (.08) (.2-.89) (022) 2.68 (68.) 0. (2.92) (029) Number in parentheses is MIL-G-828B dash number, which should be inserted (without parentheses) at end of MIL P/N.

7 Table 9. MOLDED CIRCULAR WITH D CROSS SECTION Chomerics P/N A B D (I.D.) T MIL P/N: M828/0K- ( ) 0.06 (.42) 0.04 (.04) 0.40 (0.4) (2.08) (002) (.22) Full Rad (4.9) (.98) (004) 0.2 (.8) Full Rad (22.48) 0. (.94) (006) 0.06 (.6) 0.49 (.24).22 (28.0) (2.) (008) (.96) Full Rad..0 (.27) 0. (2.92) (02) (2.6 Full Rad..40 (4.04) 0.09 (2.4) (0) 0.08 (2.6) Full Rad..92 (.6) 0.09 (2.4) (04) (.78) Full Rad..0 (9.7) 0.0 (2.68) (07) 0.88 (4.76) Full Rad..90 (99.) (6.0) (06) Number in parentheses is MIL-G-828B dash number, which should be inserted (without parentheses) at end of MIL P/N. Table MOLDED RECTANGULAR WITH D CROSS SECTION Chomerics P/N A B T (dia.) H.66 (4.0) 0.99 (2.7) 0.0 (2.62) 0.0 (.) (47.40).6 (28.) 0.0 (2.62) 0.0 (.) (.04).72 (4.8) 0.20 (.0) (.2) (8.6) 2.0 (6.7) 0.20 (6.) (.88) * * Modified D Cross Section Chomerics, Inc. Parker Hannifin PLC 77 Dragon Court Chomerics Division Woburn, MA Parkway, Globe Park Estate Tel: Marlow, Bucks., SL7 YB, England FAX: Tel: (44) FAX: (44) France Freephone Tel: (090) 870 M29SG- R Germany Freephone Tel: (00) Rev NOTICE: The information contained herein is to the best of our knowledge true and accurate. However, since the varied conditions of potential use are beyond our control, all recommendations or suggestions are presented without guarantee or responsibility on our part and users should make their own tests to determine the suitability of our products in any specific situation. This product is sold without warranty either expressed or implied, of fitness for a particular purpose or otherwise, except that this product shall be of standard quality, and except to the extent otherwise stated on Chomerics invoice, quotation, or order acknowledgment. We disclaim any and all liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user. Furthermore, nothing contained herein

8 shall construed as a recommendation to use any process or to manufacture or to use any product in conflict with existing or future patents covering any product or material or its use. The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions stated on the entitled Offer of Sale, available from Chomerics on request.

Waveguide Gaskets CONDUCTIVE ELASTOMERS. Waveguide Gaskets. Table 1 CHO-SEAL 1212 CHO-SEAL 1239 SPECIFICATIONS

Waveguide Gaskets CONDUCTIVE ELASTOMERS. Waveguide Gaskets. Table 1 CHO-SEAL 1212 CHO-SEAL 1239 SPECIFICATIONS CONDUCIVE ELSOMERS Waveguide Gaskets Waveguide Gaskets For effective EMI shielding and pressure sealing for choke cover and contact flanges Chomerics waveguide gaskets ensure low insertion low flange leakage