Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
48
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.
Mechanical
Contact Engaging & Separation
Forces —8.0 oz. max. [2.22N] (eng.),
0.5 oz. min.[.14N] (sep.).
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
Gforces, whichever is less.
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.
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.
BPolarization
APolarization
Insert
Shell
Contact Pin
Jackscrew 2-56 UNC-2B Thd.
.300
[7.62]
.199
[5.05]
.180
[4.57] .187
[4.75]
.830
[21.08]
.125
[3.18]
.350
[8.89]
#41
#1
#48
Rad.
Typ.
.046
[1.17] #10
Rad.
Typ.
.078
[1.98] Hex
Socket
Jackscrew
Plug (Pin Side)
Shell Type M1
Catalog 1308638 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 8-05 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-141-810-8967
Rectangular Connectors
49
Rectangular
Connectors
2
JACKMATE MCJM Series Metal Shell Center Jackscrew Connectors (Continued)
Receptacle (Socket Side)
Shell Type M1
Bushing
APolarization
BPolarization
Rad.
2 Plcs.
#48
#1 #10
#41
Sq.
.125
[3.18]
Rad.
2 Plcs.
.046
[1.17]
Rad.
4 Plcs.
.030
[0.76]
2 Plcs.
.050
[1.27]
2 Plcs.
.160
.005
[4.06
0.13
]
BSC
Typ.
.050
[1.27]
BSC
Typ.
.050
[1.27]
.830
[21.08] .125
[3.18]
+.010
–.005
+0.25
–0.13
.355
[9.02]
Full Rad. Typ.
Interfacial Seal Silicon Rubber
.310
[7.87]
2 Plcs.
.108
±.005
[2.74
±0.13
]
2 Plcs.
.094
±.005
[2.39
±0.13
]
Insert
Contact Skt.
Bushing Stainless Steel 2-56 UNC-2B Thd.
Rad.
2 Plcs.
.094
[2.39]
.070
±.005
[1.78
±0.13
]
2 Plcs. .200
±.005
[5.08
±0.13
]
2 Plcs.
Shell Type M2
#48
#1 #10
#41
48 P 4 L 4 0.5Lead Length in Inches (min.)
Insulation Color or Finish
1 All white wire 4 Gold plated 7 Color coded per
2 All yellow wire 5 Tin dipped gold plated MIL-STD-681, System 1
3 All gray wire 6 Bare (unfinished) 8 Special color code
9 Ten solid color repeating
(starts with black)
Wire Size
4—24 AWG 5—25 AWG 6—26 AWG 8—28 AWG 0—30 AWG
MCJ M1 A
JACKMATE Connector Series
Shell Material
M1 Metal Shell (Standard)
M2 Metal Shell (Special receptacles only)
Polarizing Position
A, B
Layout (Positions)
48
Contact Type
PPin
S Socket
X Special, does not fit description below.
S Solder pot for 26 AWG maximum stranded wire.
Wire Type
*A Type E, 7 strand *D Type ET, 19 strand G 19 strand per MIL-C-22759/11
*B Type ET, 7 strand F 7 strand per 26 AWG, 24 AWG
*C Type E, 19 strand MIL-C-22759/11 L Copper, solid
(#28 AWG only) Q Stranded per MIL-W-22759/33
*Per MIL-W-16878
How ToSpecify
