Rectangular Connectors
JACKMATE MCJM Series Metal Shell Center Jackscrew Connectors
Technical and Performance
Data for Metal Shell
Electrical
Contact Resistance
— The average
mated contact resistance is 4 milliohms,
with a maximum value of 8 milliohms,
using standard 24 AWG solid copper
leads when measured directly behind the
crimp joints of the mated pin and socket
contacts. The average resistance value at
100 microvolts is 4.8 milliohms.
Dielectric Withstanding Voltage
(60 Hz rms room temperature)
—
Solder Pots: 600 VAC at sea level; 150
VAC at 70,000 feet [21,336m].
Wire Terminations: 750 VAC at sea level;
200 VAC at 70,000 feet [21,336m].
Corrosion Resistance (Per MIL-
STD-202C, Method 101B, Condition
B)
— Both mated and unmated samples
do not exceed the maximum allowable
contact resistance (8 milliohms) when
subjected to the 48 hour salt spray test.
Durability
— The contact resistance
after 500 mating cycles is less than the
maximum allowable, 8 milliohms.
Insulation Resistance
— Greater than
5,000 megohms at room temperature for
the materials listed under “Materials”.
Maximum Current Carrying
Capacity
— No. 24 contact 3 amperes.
It must be recognized, however, that all
the wires to a connector will not carry
their maximum current under all envi-
ronmental conditions due to wire tem-
perature.
Materials
Insulator
— Diallyl Phthalate per MIL-
M-14, Type SDG-F.
Contacts
— Pin contact: copper alloy
and beryllium copper alloy make up the
complete construction; Socket contact:
copper alloy.
Body Shells
— Pin body shell: stain-
less steel, Types 304, Condition A per
QQ-S-766; Socket body shell: aluminum
alloy per QQ-A-591, A-380 alloy.
Hardware
— Corrosion resistant
stainless steel.
Mechanical
Contact Engaging & Separation
Forces
— 8.0 oz. max. [2.22N] (eng.),
0.5 oz. min.[.14N] (sep.).
Finishes
Contacts
— Standard finish is
0.000050 [0.00127] gold over copper
flash per MIL-G-45204, Type II.
Body Shells
— Pin body shell: passi-
vated per MIL-F-14072 (E-300); Socket
body shell: electroless nickel per AMS
204, Class 3, except thickness is
0.001/0.0015 [0.025/0.038].
Hardware
— Passivated per
QQ–P–35.
Note:
Insulators are molded into
their metal shells —
No bonded joint is used.
*Standard material used unless
otherwise specified.
Environmental
Temperature Range (Operating)
—
-67°F to 302°F [-55°C to 150°C] for
Diallyl Phthalate.
Vibration (Per MIL-STD-202C,
Method 204-A, Condition D)
— No
discontinuity in excess of 1 µ sec. dur-
ing twelve 20 minute sweeps from 10 to
2000 CPS at .06 double amplitude or 20
G forces, whichever is less.
Plug (Pin Side)
Shell Type M1
A
Polarization
B
Polarization
Jackscrew 2-56 UNC-2B Thd.
.300
[7.62]
.199
[5.05]
Contact Pin
Shell
Insert
.180
[4.57]
.187
[4.75]
.046
Rad.
[1.17] Typ.
#10
.078
Hex
[1.98] Socket
#1
.350
[8.89]
.125
Rad.
[3.18] Typ.
#48
.830
[21.08]
Jackscrew
#41
48
Catalog 1308638
Revised 8-05
www.tycoelectronics.com
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
are metric equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-141-810-8967
Rectangular Connectors
JACKMATE MCJM Series Metal Shell Center Jackscrew Connectors
(Continued)
Receptacle (Socket Side)
Shell Type M1
.830
[21.08]
.125
Sq.
[3.18]
.050
BSC
[1.27] Typ.
A
Polarization
Bushing
#41
#48
.125
Rad.
[3.18] 2 Plcs.
.050
2 Plcs.
[1.27]
.010
.355
+ .005
–
+ 0.25
[9.02]
– 0.13
#41
#48
Shell Type M2
.050
BSC
[1.27] Typ.
Rectangular
Connectors
.030
Rad.
[0.76] 4 Plcs.
#1
.046
Rad.
[1.17] 2 Plcs.
#10
B
Polarization
.160
.005
2 Plcs.
[4.06
0.13
]
#1
#10
Bushing Stainless Steel 2-56 UNC-2B Thd.
.094 Rad.
[2.39] 2 Plcs.
Interfacial Seal Silicon Rubber
Full Rad. Typ.
.094
±.005
2 Plcs.
[2.39
±0.13
]
.310
[7.87]
2
.070
±.005
[1.78
±0.13
]
2 Plcs.
.108
±.005
2 Plcs.
[2.74
±0.13
]
.200
±.005
[5.08
±0.13
]
2 Plcs.
Insert
Contact Skt.
How To Specify
S Solder pot for 26 AWG maximum stranded wire.
X Special, does not fit description below.
MCJ
JACKMATE Connector Series
Shell Material
M1 Metal Shell (Standard)
M2 Metal Shell (Special receptacles only)
M1
A
48
P
4
L
4
0.5
Lead Length in Inches (min.)
Insulation Color or Finish
1 All white wire
2 All yellow wire
3 All gray wire
4 Gold plated
5 Tin dipped gold plated
6 Bare (unfinished)
7 Color coded per
MIL-STD-681, System 1
8 Special color code
9 Ten solid color repeating
(starts with black)
Polarizing Position
A, B
Wire Type
*A Type E, 7 strand
*B Type ET, 7 strand
*C Type E, 19 strand
*Per MIL-W-16878
*D Type ET, 19 strand
F 7 strand per
MIL-C-22759/11
(#28 AWG only)
G 19 strand per MIL-C-22759/11
26 AWG, 24 AWG
L Copper, solid
Q Stranded per MIL-W-22759/33
Layout (Positions)
48
Contact Type
P Pin
S Socket
Wire Size
4—24 AWG 5—25 AWG 6—26 AWG 8—28 AWG
0—30 AWG
49
Catalog 1308638
Revised 8-05
www.tycoelectronics.com
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
are metric equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-141-810-8967
