257-455M09G75 Datasheet, PDF (1/2 Pages) Glenair, Inc. – Box Mount Quadrax Connector

257-455
Box Mount Quadrax Connector
With PC Tails • MIL-DTL-38999 Series III Type
Basic Number
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)
Alternate Key
Position
A, B, C, D, E
(N = Normal)
257 - 455 M 21 G 75 P N
D
B SQ. 2x C
BSC
4x M3X0.5-6G
.005 ^M
Clinch Nut
4 Places
G = Ground Plane Option
(use “–” for none)
Insert Arrangement
(See Opposite Page)
A Thread
4x Chamfered
or Rounded
.843 Max.
.102
.075
.235 Max
.175
.125
Typ.
Clinch Nut
Ref.
Potting Compound
2X D
DA
Pin contact
CB
Shown for
Reference Only
See Detail A
On Adjacent Pg. _.189
Typ
.520 Max
Fully Mated
Indicator
Band - Red
PCB Standoff
4x M3X0.5-6G Holes
.156 Deep @ 90° Apart
.111 Typ
ø
.219
.217
Mates With
ø .219 / .217
PCB Flex Print also Available. Consult Factory.
4x
ø
.026
.024
Pin
Mates With
ø .026 / .024
Socket
APPLICATION NOTES
1. Assembly identified with Glenair’s, part number and date code
2. Insert arrangements IAW MIL-STD-1560 and Figure I
3. Glenair 257-455 receptacle connector is designed to mate
with any QPL manufacturers MIL-C-38999 series III plug
connector having the same insert arrangement, polarization
and the same quadrax interface dimensions shown.
4. PC contacts supplied with connector (installed) and are not
sold seperately.
5. Material/finish:
Shell assembly, jam nut, lock ring—Al alloy/see Table II
Contacts—copper alloy/gold plate
Bayonet pins—CRES/passivate
0-rings, interfacial & peripheral seals—silicone/N.A.
Insulators—high grade rigid dielectric/ N.A.
6. Metric Dimensions (mm) are indicated in parentheses
© 2008 Glenair, Inc.
CAGE CODE 06324
Printed in U.S.A.
GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX [phone]
www.glenair.com
D-20
E-Mail: [e-mail]