Circular Connectors MQR Series -- Microminiature Circular Connectors MQR stands for MICRODOT Quick Release. This line of circular quick disconnect connectors has metal shells with push-pull couplings which provide a positive connection for rugged environmental use. The MQR series is specified for cable-to-cable and cableto-panel applications. "active" or "live", the pins require the physical protection that the receptacle side offers. (Similar to a "protected" or "shrouded" header.) The plug connector side contains socket contacts. The receptacle connector side contains pin contacts. Because the pin contact is MQR connectors are manufactured to the performance specifications of MIL-DTL-83513. How to Specify/ Ordering Code While there is no optional hardware for the MQR series, the receptacles incorporate a standard jam nut to tighten the connector down to the board or panel. S -- Solder pot X -- Special, Does not fit description. MQR A 37 P 6 A 1 18.0 Length in Inches (Min.) Connector Series Insulation Color or Finish Shell, Material & Finish Number of Contacts** Wire Type 7, 19, 37* Shell Per MIL-W-16878 P -- Plug (Socket Contact) F -- Receptacle, Front Panel Mount (Pin Contact) R -- Receptacle, Rear Panel Mount (Pin Contact) *uses twist pin contacts ** Other non-standard sizes are also available, contact Tyco Electronics for details. 7 19 37 A (Hex) .500 12.7 .625 15.88 .812 20.62 B (Min.) .361 9.17 .477 12.16 .722 18.39 Dimensions O C (Min.) .376 9.55 .501 12.73 .751 19.07 { A -- Type E, 7 strand B -- Type ET, 7 strand C -- Type E, 19 strand D -- Type ET, 19 strand F -- 7 strand per MIL-W-22759/11 (28 AWG only) G -- 19 strand per MIL-C-22759/11 26 AWG, 24 AWG L -- Copper, solid Q -- Stranded per MIL-W-22759/33 3 Wire Size 4 -- 24 AWG 5 -- 25 AWG 6 -- 26 AWG 8 -- 28 AWG 0 -- 30 AWG Key Front Panel Mount (MQR Receptacle) Size Circular Connectors 1 -- All white 6 -- Bare (unfinished) 2 -- All yellow 7 -- Color coded per MIL-STD-681, System I 3 -- All gray 9 -- 10 Solid color repeating (starts with black) 4 -- Gold plated 5 -- Tin dipped gold plated A -- Aluminum, Electroless Nickel Finish B -- Brass, Sulfamate Nickel Finish D Thd. 3/8-32 UNEF-2A A Hex. 1/2-28 UNEF-2A 3/4-20 UNEF-2A D Thd. .400 [10.16] B Min. OC Min. Mounting Hole For Front Panel Mount Front Panel Mount (19 Position Shown) 87 Catalog 1308638 Revised 8-05 www.tycoelectronics.com Dimensions are in inches and millimeters unless otherwise specified. Values in brackets are metric equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. USA: 1-800-522-6752 Canada: 1-905-470-4425 Mexico: 01-800-733-8926 C. America: 52-55-5-729-0425 South America: 55-11-3611-1514 Hong Kong: 852-2735-1628 Japan: 81-44-844-8013 UK: 44-141-810-8967 Circular Connectors MQR Series -- Microminiature Circular Connectors (Continued) Rear Panel Mount (MQR Receptacle) Size 7 19 37 A (Hex) .500 12.7 .687 17.45 .812 20.62 B (Min.) .422 10.72 .531 13.49 .722 18.39 Dimensions O C (Min.) .440 11.18 .564 14.33 .751 19.07 .050 Typ. [1.27] .025 Typ. [0.64] D Thd. Key 7/16-28 UNEF-2A A Hex. 9/16-24 UNEF-2A .0433 Typ. [1.10] 3/4-20 UNEF-2A .036 .005 Typ. [0.91 0.13] D Thd. B Min. .250 [6.35] L Min. OC Min. Mounting Hole For Rear Panel Mount Rear Panel Mount (19 Position Shown) Circular MQR Series Quick Release Receptacle 7 Position (Stamped Pin) 19 Position (Stamped Pin) 37 Position (Twist Pin) 2 2 1 2 7 3 4 3 13 17 9 7 10 15 12 16 22 16 23 29 8 5 4 5 4 6 3 1 1 19 28 33 37 34 18 35 36 Circular MQR Series Quick Release Plug .130-.144 Typ. [3.30-3.66] .050 Typ. [1.27] .025 Typ. [0.64] Keyway MQR Plug Size 7 19 37 Dimensions OB OA .375 .300 9.53 7.62 .400 .475 12.07 10.16 .750 .630 19.05 16.00 OA OB .795 [20.19] .0433 Typ. [1.10] L Min. Plug (19 Position Shown) 7 Position 19 Position 37 Position 3 2 1 7 3 2 6 7 3 5 4 1 12 8 16 13 17 18 5 9 4 19 2 4 1 15 10 22 16 23 29 28 33 34 37 36 35 88 Catalog 1308638 Revised 8-05 www.tycoelectronics.com Dimensions are in inches and millimeters unless otherwise specified. Values in brackets are metric equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. USA: 1-800-522-6752 Canada: 1-905-470-4425 Mexico: 01-800-733-8926 C. America: 52-55-5-729-0425 South America: 55-11-3611-1514 Hong Kong: 852-2735-1628 Japan: 81-44-844-8013 UK: 44-141-810-8967