environmental connectors glenair, inc. ? 1211 air way ? glendale, ca 91201-2497 ? 818-247-6000 ? fax 818-500-9912 printed in u.s.a. www.glenair.com cage code 06324 ? 2008 glenair, inc. e- mail: sales@glenair.com d-20 d 257-455 box mount quadrax connector with pc tails ? mil-dtl-38999 series iii type basic number g = ground plane option (use C for none) 257 - 455 m 21 g 75 p n finish m - electroless nickel nf - o.d. cadmium over nickel shell size 09 21 23 25 contact style p - pin, pc tail quadrax (100 ohm) s - socket, pc tail quadrax (100 ohm) c - pin, pc tail quadrax (150 ohm) d - socket, pc tail quadrax (150 ohm) a d c b 4x chamfered or rounded 4x m3x0.5-6g clinch nut 4 places b sq. 2x c bsc a thread pin contact shown for reference only .520 max fully mated indicator band - red .843 max. .102 .075 .235 max .175 .125 typ. clinch nut ref. potting compound see detail a on adjacent pg. .189 typ 2x d pcb standoff 4x m3x0.5-6g holes .156 deep @ 90 apart .111 typ ? .219 .217 4x ? .026 .024 mates with ? .219 / .217 mates with ? .026 / .024 socket pin .005 m application notes assembly identifed with glenairs, part number and date code 1. insert arrangements iaw mil-std-1560 and figure i 2. glenair 257-455 receptacle connector is designed to mate 3. with any qpl manufacturers mil-c-38999 series iii plug connector having the same insert arrangement, polarization and the same quadrax interface dimensions shown. pc contacts supplied with connector (installed) and are not 4. sold seperately. material/fnish: 5. shell assembly, jam nut, lock ringal alloy/see table ii contactscopper alloy/gold plate bayonet pinscres/passivate 0-rings, interfacial & peripheral sealssilicone/n.a. insulatorshigh grade rigid dielectric/ n.a. metric dimensions (mm) are indicated in parentheses 6. alternate key position a, b, c, d, e (n = normal) pcb flex print also available. consult factory. insert arrangement (see opposite page)
environmental connectors glenair, inc. ? 1211 air way ? glendale, ca 91201-2497 ? 818-247-6000 ? fax 818-500-9912 printed in u.s.a. www.glenair.com cage code 06324 ? 2008 glenair, inc. e- mail: sales@glenair.com d-21 d 257-455 box mount quadrax connector with pc tails ? mil-dtl-38999 series iii type table i shell size a thread b sq. c bsc. d bsc. ? e min. 09 .6250-.1p-.3l-ts-2a 1.031 1.007 .719 .594 .656 21 1.3750 -.1p-.3l-ts-2a 1.575 1.545 1.250 1.221 1.421 23 1.5000 -.1p-.3l-ts-2a 1.701 1.677 1.375 1.360 1.546 25 1.6250 -.1p-.3l-ts-2a 1.823 1.799 1.500 1.475 1.672 ca da na aa ba figure 1 master keyway position face view shown insert arrangement does not rotate with master keyway d c b a f e d c b a h g f e d c b a arrangement 09-5 arrangement 21-75 arrangement 23-06 arrangement 25-08 1 2 3 4 orientation key / keyway 45 .250 (cl of ground legs) .111 typ .021 x .025 rear view of differential quadrax orientation key / keyway 45 ? .250 bc ? .039 min. 4x equally spaced ? .030 min 4x .111 typ recommended pcb layout 2 3 4 1 c bsc 4x .130 min. c bsc ? e min. back panel mounting see quadrax contact information on d-24
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