257-616
Twinax and Quadrax PC Tail Contacts
MIL-DTL-38999 Series III Type
Twinax and
Quadrax
Connectors
Basic Part Number
257-616
=
D38999 Series III Type
Quadrax Connector
Quadrax
Contact
(Omit for Twinax)
Ground Plane
Option
G
= Outer Contacts
Grounded to Shell
––
= None
257-616
Q
-
07
45°
4x
Ø.035 Min
Ø.250 Bc
TWINAX CONTACT
2x ø.025
SIZE #8 CONCENTRIC TWINAX PIN, PC TAIL DETAIL
INTERFACE PER M39029/90
.021x.025
4x
.0715
Ø.030
Intermediate
Contact
.0715
Ø.030 Min
Center Contact
RECOMMENDED
TWINAX PCB LAYOUT
E
45°
Orientation
Key/Keyway
.250
(CL of Ground Legs)
Orientation
Key/keyway
45°
1
4
3
2
Ø.250 Bc
QUADRAX CONTACT
.244 Typ
.219
Ø.217
Mates With
Ø.219/.217
Ø.023/.027
Typ
.111
Typ
1
2
3
4
Ø.039 Min
4x Equally
Spaced
.021 X .025
Ø.030 Min
4x
PIN
SOCKET
DETAIL A
Rear View Of Differential Quadrax
Pin Contact (Rear) Shown
Pin no's are for ref only and shall
not be marked.
(Ref: Diferential Pairs: 1 & 3; 2 & 4)
Recommended Pc Board
Layout
.111
Typ
© 2010 Glenair, Inc.
www.glenair.com
CAGE CODE 06324
Printed in U.S.A.
E-Mail: sales@glenair.com
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-22
