Rack & Panel
XMRA & XMRE Series
External Miniature Rectangular
/
#16 Contacts
/
.062" Dia.
13 Amps
■
#20 Contacts
/
.040" Dia.
/
7.5 Amps
A typical Series “XMRE” Receptacle and Plug fully wired and potted.
The XMRE and XMRA Series connectors are
designed to provide a sturdy, space-saving,
lightweight electrical connection. Inserts are
housed in protective shells with screw lock
coupling plus wall and cable mounting
accessories available.
SPECIFICATIONS
Current Rating:XMRA
- 13 amps
XMRE - 7.5 amps
No. of
Contacts:
XMRA - 9, 14, 20, 34, 42, 50,
50-8, 66, 75, 104
XMRE - 9, 14, 18, 20, 26, 34,
42, 50, 75, 104
Pin Contacts:
XMRA - .062 diameter, gold
plated brass
XMRE - .040 diameter, gold
plated brass
Socket
Contacts:
Phosphor bronze plated gold.
Termination
Types:
XMRA - .070 dia. solder cup
will accept up to #16 AWG
stranded wire.
XMRE - .048 dia. solder cup
will accept up to #20 AWG
stranded wire.
Electrical Data:
Both XMRE and XMRA meet
high potential performance
requirements of MIL-C-28748.
Military versions are QPL’d to
M28748/1 and M28748/2
(XMRA) and to M28748/5 and
M28748/6 (XMRE)
The minimum dielectric
withstanding voltage is one
minute electrification at 1000
VAC (sea level) for XMRA and
1200 VAC for XMRE Series.
Dielectric:
Brown mineral filled diallyl
phthalate. Also available in
gray glass filled diallyl
phthalate, per MIL-M-14,
SDG-F.
A polarizing stud in the plug
shell and a mating slot in the
receptacle shell eliminates
misalignment. Jackscrews
and jacksockets or guide
pins and sockets are
alternative methods of
polarization.
Anodized Aluminum. May be
applied to both plug and
receptacles. Both top and
side opening hoods are
available.
Polarization:
Hoods:
Winchester/Retconn
62 Barnes Industrial Road North, Wallingford, Connecticut 06492 Phone:(203)741-5400 Fax:(203)741-5500 www.winchesterelectronics.com
RP /
44
Rack & Panel
XMRA & XMRE Series
External Miniature Rectangular
/
#16 Contacts
/
.062" Dia.
13 Amps
■
#20 Contacts
/
.040" Dia.
/
7.5 Amps
CONNECTOR ASSEMBLIES
CONNECTOR TERMS
Plug:
The complete connector half which has
the plug shell as part of its assembly.
Receptacle:
The complete connector half
which has the receptacle shell as part of its
assembly.
Shell:
The metal housing in which a male or
female insert is assembled. A shell is either a
plug shell or a receptacle shell.
Plug Shell:
One which is designed to be
inserted into a receptacle shell.
Receptacle Shell:
One which is designed to
receive and enclose the plug shell upon
engagement.
Male Insert:
The molded insulator body
containing pin contacts.
Femal Insert:
The molded insulator body
containing socket contacts.
Pin Contacts:
Male metal conductors that fit
into the socket contacts.
Socket Contacts:
Female metal conductors,
tubular in shape, which receive the pin
contacts and retain them by spring tension.
Polarization:
A means of controlling the
engagement of a plug and receptacle so that
correct mating of the contacts is achieved.
Potting Form:
A plastic mold used to retain
and shape the sealing compound during the
moisture-proofing, or potting operation.
Potting:
A method of moisture-proofing the
back of a plug or receptacle and the soldered
wire connections by injecting a free flowing
sealing compound into a pre-shaped form and
allowing it to set. The result is a homoge-
neous mass, chemically bonded to the back
of the insert and around the soldered
connections.
Accessories:
Those components such as
hoods, mounting plates and finger grips which
are attachable to a plug or receptacle to
facilitate mounting and/or handling of the
connector.
Winchester/Retconn
62 Barnes Industrial Road North, Wallingford, Connecticut 06492 Phone:(203)741-5400 Fax:(203)741-5500 www.winchesterelectronics.com
RP /
45
Rack & Panel
XMRA & XMRE Series
External Miniature Rectangular
/
#16 Contacts
/
.062" Dia.
13 Amps
■
#20 Contacts
/
.040" Dia.
/
7.5 Amps
OUTLINE
Dimensions are for reference only and
are subject to change. Outline drawings
on request.
Contact Arrangements
.075
Typ.
.38
.075
Typ.
.44
.075
Typ.
1.250
1.313
1.000
.11
.13R
.09R
.172 Typ.
.13R
.937
.56
.09R
.075
Typ.
.44
.09R
1.313
1.000
.06
.06
1.563
1.250
.09R
.130 Typ.
.130 Typ.
.13R
.130 Typ.
9 Contacts
XMRE 9 or XMRA9
.75
.47
.56
.09R
.075
Typ.
1.625
1.312
.06
.23
14 Contacts
XMRE 14 or XMRA 14
.75
.47
.23
.075
Typ.
18 Contacts
XMRE 18
20 Contacts
XMRE 20 0r XMRA 20
.88
.09R
.075
Typ.
.75
.47
.23
.75
.47
.09R
.075
Typ.
.23
.09R
.075
Typ.
.16
2.000
1.688
2.000
1.688
.16
2.313
2.594
2.000
2.281 2.719
.13R
.130 Typ.
Mounting
holes for
No. 4 machine
screws
.16
.180 Typ.
Mounting
holes for
No. 4 machine
screws
.180 Typ.
Mounting holes for
Mounting
No. 4 machine screws
holes for
No. 4 machine
screws
26 Contacts
XMRE 26
.180 Typ.
.180 Typ.
34 Contacts XMRA 34
34 Contacts XMRE 34
42 Contacts
XMRE 42 or XMRA 42
1.234
50 Contacts
XMRE 50 or XMRA 50
1.125
.50
.25
.130
Typ.
.150
Typ.
.260
1.125
.50
.25
1.109
.31R
.075
Typ.
.13
.23
.77
1.531
.88
.44
.16
.075
Typ.
2.281
1.969
2.281
1.969
2.594
2.375
2.282
2.719
2.750
.16
Mounting
holes for
No. 4
machine
screws
.180 Typ.
.225
Mounting
holes for No. 4
machine screws
.180 Typ.
.180 Typ.
.16R
Mounting
holes for No. 4
machine screws
.180 Typ.
58 Contacts
XMRA 50-8
66 Contacts
XMRA 66
75 Contacts
XMRE 75 or XMRA 75
104 Contacts
XMRA 104
XMRE 104
Views are rear (wiring end) of female inserts (male inserts are mirror image). The spacing, arrangement, and
identification of contacts of the XMRE inserts are the same as found on the Series MRE Connectors for the
same number of contacts.
Winchester/Retconn
62 Barnes Industrial Road North, Wallingford, Connecticut 06492 Phone:(203)741-5400 Fax:(203)741-5500 www.winchesterelectronics.com
RP /
46
Rack & Panel
XMRA & XMRE Series
External Miniature Rectangular
/
#16 Contacts
/
.062" Dia.
13 Amps
■
#20 Contacts
/
.040" Dia.
/
7.5 Amps
JACKSCREWS & JACKSOCKETS
Jackscrew Locking Devices
Polarized jackscrews offer the ease and
assurance of threaded positive coupling.
They are particularly desirable for the larger
connectors (XMRE 34 and larger) whenever
they are to be used in locations that make it
difficult to apply enough direct pull to
separate the two halves of the connector.
Type C (long-turning jackscrews and
jacksockets) or Type D (monojacks) must be
specified if both jackscrews and hood are
required on the same connector half.
Monojacks eliminate the need for roll pins,
spacers and washers.
OUTLINE
Shell
Jacksocket
.73
A
Mono-
Jackscrew
B
4-40 UNC
Except
size 104
which is 6-
32
Jackscrew
6-32 UNC Except 104
Which is 8-32 UNC
Hood
Self locking
pin
Mono-
Jacksocket
.052 Dia.
safety wire hole
Connector with fixed Jackscrews
Code designation: F
AND
Mating connector half with turnable
Jackscrews-with-Knobs
Code designation: M
OR
Mating connector half with Hood and
turnable Long Jackscrews-with-
Knobs
Code designation: C-0300, C-0400
OR
Mating connector half with Hood and
turnable Monojacks
Code designation: D-0300, D-0400
Drawings show extension of knobs beyond shell (left) and beyond hood. Refer to details
of shells and hoods for the other dimensions which vary according to connector size.
DIMENSIONS
Dimension A
SERIES CODE
XMRE
9
14 18 20 26 34 42 50 50-8 66
.58
.58
.58
.58
.58
.58
.53
.53
.53
.53
–
–
.53
.53
.53
.53
–
–
–
–
–
–
.64
.64
–
–
–
–
.64
.64
Dimension B
75 104
.52
.52
.52
.52
–
–
–
–
–
–
.52
.52
CODE 34 42 50 66 75 104
0300
0400
0700
0800
.59
.59
–
–
.55
.55
–
–
.55
.55
–
–
–
–
.38
.38
.53
.53
–
–
–
–
.38
.38
0300
–
–
–
– .77
0300X
.53 .53 .78 .53 .55
0400
.55 .55 .55 .55 .55
0400X
–
–
– .55 .55
0700
0800
–
–
–
–
–
–
–
–
–
–
XMRA
Part
Jackscrews
Jacksockets
Jackscrews
Jacksockets
Jackscrews
Jacksockets
Knobs (except
Monojacks
Monojackscrews
Monojacksockets
Code
Letter
Turntable M
Long
Turntable C
Fixed
F
Wt. Oz.
See Notes
1&2
0.30
0.45
0.15
Material and
Finish
stainless steel
with passivating dip
stainless steel
with passivating dip
nickel-plated brass
al. anodized
Guide Socket
Code Letter
Actual Size Photo
G
G Type
For General Use
Turning
Turning
K
K Type For
High Electrical Conductivity
Standard Guide Pin
mates with all types
D
nickel-plated brass
Note 1: Weights are given for pairs, i.e., for a jackscrew and a
jacksocket, etc., so that the weight figure may be added once to the
weights of other accessories when computing the total weight of a plug
or receptacle.
Note 2: Weights of turnable jackscrews and turnable jacksockets include
knobs and roll pins; weights of fixed hardware include nuts.
N
N Type For
Extra Mechanical Strength
MATERIALS
"G" Socket:
"K" Socket:
"N" Socket:
Guide Pin:
Winchester/Retconn
Phosphor
bronze.
Beryllium copper.
Brass.
Brass
FINISH
Gold over Nickel
62 Barnes Industrial Road North, Wallingford, Connecticut 06492 Phone:(203)741-5400 Fax:(203)741-5500 www.winchesterelectronics.com
RP /
47
Rack & Panel
XMRA & XMRE Series
External Miniature Rectangular
/
#16 Contacts
/
.062" Dia.
13 Amps
■
#20 Contacts
/
.040" Dia.
/
7.5 Amps
OUTLINE
JACKSCREW & JACKSOCKETS
.19
.078 Int. Hex
.22
.25 Hex.
.50
.22
Dia.
A
A
A
A
CW
CU
.19
.078 Int. Hex
CX
.22 Dia.
CZ
.97
.33
Dimensions are for reference only and
are subject to change. Outline drawings
on request.
.25
Hex
.73
MW
MU
6-32 UNC 2 THD. (Typ)
.23
MX
FZ
DIMENSIONS
All jackscrews and sockets are stainless
steel, passivated, except F & D which
are nickel-plated brass.
All knobs are aluminum, anodized
except MW and CW which are
stainless steel, passivated.
Jackscrew Locking For Series XMRE, XMRA
Size 0300 0400 0300X 0400X 0700 0800
9
14
18
20
26
34
42
50
50-8
66
75
–
–
–
–
.36
.39
.34
.34
–
–
.33
Dimension A - Type CW
.36
.34
.36
–
.36
.34
.36
–
.36
.34
.36
–
.36
34
.36
–
.36
.36
.36
–
.39
.39
.39
.47
.34
.34
.34
–
.34
.34
.34
–
–
–
–
.47
–
–
–
.47
.33
.33
.33
–
Dimension A - Type CX
.48
.47
.48
.48
.47
.48
.48
.72
.48
.48
.47
.48
.48
.48
.48
.52
.52
.52
.47
.47
.47
.47
.47
.47
–
–
–
–
–
–
.45
.45
.45
–
–
–
–
–
.47
–
–
.47
.47
–
Size 0300 0400 0300X 0400X 0700 0800
9
14
18
20
26
34
42
50
50-8
66
75
–
–
–
–
.61
.64
.59
.59
–
–
.58
Dimension A - Type CU
.61
.59
.61
.61
.59
.61
.61
.59
.61
.61
.59
.61
.61
.61
.61
.64
.64
.64
.59
.59
.59
.59
.59
.59
–
–
–
–
–
–
.58
.58
.58
Dimension A - Type CZ
.61
.59
.61
.61
.59
.61
.61
.84
.61
.61
.59
.61
.61
.61
.61
.64
.64
.64
.59
.59
.59
.59
.59
.59
–
–
–
–
–
–
.58
.58
.58
–
–
–
–
–
.72
–
–
.72
.72
–
–
–
–
–
–
.72
–
–
.72
.72
–
Size 0300 0400 0300X 0400X 0700 0800
9
14
18
20
26
34
42
50
50-8
66
75
–
–
–
–
.77
.52
.47
.47
–
–
.45
–
–
–
–
–
.61
–
–
.61
.61
–
–
–
–
–
–
.61
–
–
.61
.61
–
Size 0300 0400 0300X 0400X 0700 0800
9
14
18
20
26
34
42
50
50-8
66
75
–
–
–
–
.92
.64
.59
.59
–
–
.58
–
–
–
–
–
.72
–
–
.72
.72
–
–
–
–
–
–
.72
–
–
.72
.72
–
Winchester/Retconn
RP /
48
62 Barnes Industrial Road North, Wallingford, Connecticut 06492 Phone:(203)741-5400 Fax:(203)741-5500 www.winchesterelectronics.com
