D20419-80 Datasheet, PDF (272/386 Pages) ITT Industries – Military/Aerospace

Micro Edgeboard - .050" Contact Spacing
MEB
How to Order
The Micro Edgeboard (MEB) connector series pro-
vides a combination of high density and high reliability
for applications in airborne and space systems, com-
puters and peripherals, and industrial/commercial
control systems. This series incorporates the pro-
ven MICROPIN™/MICROSOCKET™ contact. This
contact has an outstanding record of high reliability
and millions of contacts are in use in various
applications where electrical interconnects are
used.
The MEB has machined aluminum shells for rug-
gedness, diallyl phthalate insulator for top electrical
performance and a 36-position polarization key
system to prevent cross plugging. Contacts are on
.050 (1.27) center spacings. A variety of termina-
tion types are available, including 90˚ pigtails for
multi-layered P.C. boards, "coke bottle' termina-
tion for double-sided P.C. boards, and .025 (0.64)
square wire wrap post termintaion. Harnessing
capability is also available for both pin and socket
sides.
The MEB, including the SBR 90˚ variation available
for multi-layer boards, can be mounted on the
female (daughter) side of double or single-sided
P.C. boards. The mating male (mother) board side
can have the terminations formed to meet the
application demands. Wire-wrapping, using .025 X
.025 (0.64 X 0.64) square posts is also available.
Conforms to MIL-C-55302/120 thru 123.
Not applicable for printed
circuit board configurations
shown on pages 273 & 274
SERIES PREFIX
CONTACT SPACING
LAYOUT
CONTACT TYPE
TERMINATION MODIFICATIONS
LEAD LENGTH
OTHER MODIFICATIONS
SERIES PREFIX
MEB -
Micro edgeboard, plug with twist pin
contacts or recept. with microsocket
contacts.
MEBL -
Micro edgeboard, plug with stamped
Low Insertion Force (LIF) contacts.
Pin side only.
CONTACT SPACING
1 - .050 (1.27) centers 128/184
2 - .100 (2.54) centers 64/92
(alternate contact holes)
LAYOUT
64, 92, 128, 184
CONTACT TYPE
P - Pin
S - Socket
* For other contact spacing acommodations consult factory.
Performance and Material Specifications
MATERIALS AND FINISHES
Shell:
Contact, Pin and Socket:
Jackscrew/Jackpost:
Insulator:
6061-T6 Aluminum Alloy per QQ-A-200/8 or QQ-A-225/8, electroless nickel per MIL-C-26074,
Class 4, grade A except .0010 to .0015 (0.03 to 0.04) thick or conversion coating per
MIL-C-5541, Class 3, color gold.
Copper Alloy, 50 microinch gold per MIL-G-45204, Type II, Class 1, over copper flash
303 stainless steel, passivated per QQ-P-35.
Glass-filled diallyl phthalate per MIL-M-14, Type SDG-F, color green
Polyester per MIL-M-24519, Type GET-30F, color black available for MEB-12B upon request.
MEB 1 - 128 P * * * * *
TERMINATION MODIFICATIONS
L-
Uninsulated solid wire
H-
Insulated stranded round harness
wire
S-
Solder pots
BR -
PC board right angle, socket side only
W-
Wire wrap post, pin side only
LEAD LENGTH
Consult factory for wire lead modification codes.
OTHER MODIFICATIONS
Consult factory
TERMINATION TYPES
Consult factory for stranded wire lead modifications codes.
MECHANICAL FEATURES
Size or Length:
2 sizes
Coupling:
Friction/Jackscrew
Polarization:
Shells, polarizing keys (36 positions)
Contact Spacing Centers:
.050 (1.27)
Shell Styles:
Plug and receptacle
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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