Circular Connectors
MARC 43 Series Connectors
General Information
A high density (.080 [2.03]
contact centers), lightweight,
subminiature, cylindrical
connector series featuring
crimp contacts and finger-
tip, push-pull, quick discon-
nect coupling. This series
conforms to the applicable
performance requirements
of MIL-C-26482 and is
available in unsealed,
environmentally sealed, and
hermetic types.
A large assortment in insert
arrangements — accommo-
dating AWG 12 through 32
gauge wire and miniature
coaxial cables — is available
for the design engineer’s
choice. The contacts are
retained by shoulder
entrapment and can be
crimped with the standard
M22520 tools, using appro-
priate locators.
This proven series of con-
nectors has a long history of
outstanding performance
connectors. Inserts are
molded from flame-resist-
ant, glass-filled diallyl
phthalate, meeting ASTM
D5948 requirements. All
resilient parts are made of
high temperature, silicone
rubbers. Fuel resistant
compounds are used
where swelling affects the
performance of the
connector. All materials are
carefully selected for their
non-magnetic properties.
The standard finish is clear,
non-conductive anodize on
on many military and aero-
space programs. MARC 43
Series Connectors are ideal
for applications where high
performance must be
achieved at low cost.
Materials and Finishes
MARC 43 Series Connector
housings and quick
disconnect couplings are
machined from bar stock
aluminum to combine maxi-
mum strength with minimum
weight. Threaded couplings
are machined from non-
magnetic, stainless steel
bar stock for durability of
the coupling threads.
Contacts are manufactured
from high conductivity
copper alloys which have
been selected for low
contact resistance over the
operating range of the
connector housings and
quick disconnect couplings.
For threaded coupling
applications, aluminum
components are hard, black
anodized, and stainless
steel plug coupling is
passivated with black oxide
finish. Conductive finish
modifications include gold,
cadmium, and iridite
finishes. Contacts are gold
plated per MIL-G-45204
requirements. See page 63
for modification information.
Service and Performance Data
I. Electrical
— Electrical Ratings
Current RatingDielectric
Contact
Amperes,
Size
Max., +27°C
1
22 AWG
5 amps
16 AWG
20 amps
12 AWG
50 amps
50 ohm
3 amps
3 amps
75 ohm
95 ohm
3 amps
1
3
Dielectric
Dia.
(Teflon)
—
—
—
.032-.036
.813-.914
.060-.066
1.52-1.68
.100-.104
2.54-2.64
Shield
Dia.
—
—
—
.048-.054
1.22-1.37
.078-.084
1.98-2.13
.115-.123
2.92-3.12
Jacket
Dia.
2
.039-.054
.990-1.37
.065-.081
1.65-2.06
.096-.120
2.44-3.05
.065-.087
1.65-2.21
.096-.109
2.44-2.77
.137-.154
3.48-3.91
Circular
Connectors
Withstanding
Voltage (RMS)
1000
1000
1000
1000
1250
1500
Working Voltage
Sea
70,000 ft.
Level
[21,336 m] Alt.
750
300
750
300
750
300
750
300
1000
300
1250
300
Contact
Size
22
16
3
12
50 ohm
75 ohm
95 ohm
1
Wire
Size
22, 24, 26
16, 18, 20
12 AWG
50 ohm
75 ohm
95 ohm
Consult nomograph.
II. Mechanical
— Durability: 500 Cycles Mate/Unmate.
Coupling/Uncoupling Forces and Tightening Torques:
Shell
Size
A
B
C
Coupling/
Uncoupling
Force
(In-Lbs.) Max.
13 [57.8 N]
17 [75.6 N]
21 [93.4 N]
Tightening Torque (In-Lbs.)
Retaining Nut
Mounting Nut
20, Max. [2.26 Nm]
20, Max. [2.26 Nm]
20, Max. [2.26 Nm]
30-45 [3.39 Nm – 5.08 Nm]
40-55 [4.52 Nm – 6.21 Nm]
55-70 [6.21 Nm – 7.91 Nm]
Conductor
Dia.
(Stranded)
1
.019-.032
.482-.813
.038-.061
.965-1.55
.071-.093
1.80-2.36
.013
.330 Max.
.013
Max.
.330
.013
Max.
.330
Tolerance of conductor diameters required for a reliable crimp. Smaller sizes
readily accommodated — consult Tyco Electronics.
2
Smaller jacketed cable can be accommodated but environmental seal may
be impaired. Smooth extruded jacket should be used for consistent wire
sealing.
3
Size 16 AWG Contact for size 20 AWG Wire – Use Tool 010-0080-0000.
Operating Temperature: -85°F to 257°F [-65°C to +125°C].
57
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
Circular Connectors
MARC 43 Series Connectors
(Continued)
Test Data
MARC 43 Series Connectors meet the applicable performance requirements of specification MIL-C-26482 (Navy) to
include the following selected test parameters listed below:
DESCRIPTION
MIL-C-26482 Test Para
Insulation Resistance,
Room and High Temp.,
Para. 4.7.3
Dielectric Withstanding Voltage,
Para. 4.7.4
Durability,
Para. 4.7.9
Corrosion,
Para. 4.7.10
TEST REQUIREMENTS
Insulation resistance of unmated connectors shall be 5000 megohms, minimum
at room temperature and 2000 megohms, minimum, at 257°F
[
+125°C]
when measured per MIL-STD-202, Method 302, Test Condition B.
No evidence of dielectric breakdown or flashover when mated and unmated
plugs are subjected to 1000 volts, rms, per MIL-STD-202, Method 301.
Plugs and receptacles designed to withstand up to 500 cycles of engagement
and separation without detrimental electrical or mechanical damage to the
connectors.
Unmated plugs and receptacles shall show no exposure of basis metal due
to corrosion which would affect electrical or mechanical performance of the
connectors after subjection to 24 hours exposure to salt spray atmosphere
per MIL-STD 202, Method 101.
Mated connectors shall show no circuit interruptions greater than 10 micro-
seconds during 12 hours vibration to include six sweeps in two axes at
-67°F [-55°C], room temperature, and 257°F [+125°C] per MIL-STD-202, Method
204, Test Condition B. Post inspection shall show no detrimental cracking,
breaking, or loosening of parts.
The insulation resistance of mated connectors shall exceed 100 megohms
after subjection to moisture resistance testing per MIL-STD-202, Method 106.
Contacts shall withstand 15 lbs [66.7 N] axial load without axial displacement in
excess of 0.012 [0.305] or damage to contacts or inserts when the axial load is
applied to the mating end of the contacts in unmated plugs and receptacles
at a rate of approximately 1 lb/sec.
Sweep Vibration,
Mated, Para. 4.7.11
Moisture Resistance,
Para. 4.7.13 and 4.7.13.1
Contact Retention,
Para. 4.7.16
Contact Arrangements
1
“A Size” Insert Layouts
(A = ) Shell Size 9
Insert Arrangement
2
Number of Contacts
Contact Size
“B Size” Insert Layouts
(B = ) Shell Size 12
-1
-2
19
7
50 Ohm 22 AWG
-5
2-22 AWG
2-50 Ohm
-11
-12
7
12
16 AWG 22 AWG
-14
7-22 AWG
2-50 Ohm
-17
4
16 AWG
-21
6-16 AWG
1-50 Ohm
Insert Arrangement
2
Number of Contacts
Contact Size
“C Size” Insert Layouts
(C = ) Shell Size 15
-9
-10
3
12
37
50 Ohm 22 AWG
-15
-19
13-22 AWG
12
6-50 Ohm 16 AWG
-34
-37
5
13-22 AWG
95 Ohm 6-12 AWG
-47
5
75 Ohm
-49
29-22 AWG
2-16 AWG
Insert Arrangement
2
Number of Contacts
Contact Size
-3
19
50 Ohm
Notes:
1
2
-4
61
22 AWG
-7
22-22 AWG
2-75 Ohm
-13
43-22 AWG
2-50 Ohm
-27
5-75 Ohm
4-95 Ohm
-48
12
75 Ohm
Views shown are front face view of receptacles. Front face view of plugs is mirror image of that shown.
Arrow ( ) indicates insert top or vertical position in relation to top or vertical position of connector housings.
3
Arrangement also available in hermetic seal receptacles.
58
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
Circular Connectors
MARC 43 Series Connectors
(Continued)
Part Number and Ordering
Information
MARC 43 Series Connector
part numbers indicate size,
shape, insert layout, type of
seal, style of contact and
polarization.
Note:
Pin or
socket (power or coaxial)
contacts may be used in
either plugs or receptacles.
However, it is recommend-
ed that pins be placed in
the receptacle when possi-
A
43
Denotes
Microdot
Series
ble to take advantage of our
“scoop-proof” design. (The
style—pin or socket—of a
coaxial contact refers to the
outer contact body.)
Alternate Keying.
Standard
alternate polarizing key posi-
tions are shown below. Addi-
tional polarizing keyways are
available upon request.
E
H
14
Supplemental Accessory
Hardware.
We also manufac-
ture supplemental accesso-
ry hardware (protective cov-
ers, cable clamps, etc.) to
adapt these connectors to
almost any application. For
modifications to fit
your requirements, contact
Tyco Electronics.
P
5
Polarizing
Position
N, 1, 2, 3, 4,
etc.
Typical Part Number
(***)
Modification
Designator
when
Applicable
(See Page 63)
Layout number
P = Plug
PF = Plug, sq. flange mtg.
PT = Plug, threaded cpl. ring
Circular
Size A
Size B
Size C
Unsealed A
Hermetic H
Sealed E
H = Receptacle, single hole mtg.
F = Receptacle, box mtg.
FT = Receptacle, box mtg.
(threaded coupl.)
J= Receptacle, line cord
S = Receptacle, solder mount
(Hermetic)
B = Receptacle, thru-bulkhead,
double end (Hermetic)
P = Pin (male) power contacts
Circular
Connectors
PP = Double end pins (type B only)
S = Socket (female) power
CP = Coaxial pin contact, or
combination of coaxial pin
and pin power contacts
CS = Coaxial socket contact, or
combination of coaxial socket
and socket power contacts
Note: If P, S, CP, or CS does not appear in the numbering system,
no contacts will be supplied with order (order separately).
Use one only
Polarizing Key Positions
All MARC 43 Series
Connector multi-pin plugs
and receptacles are avail-
able in alternate polarizing
positions as listed below:
(1)
(1)
(1)
Y
X
Y
X
3
Size C
X°
130
130
130
130
190
150
90
70
70
90
210
30
250
130
30
Y°
110
90
150
170
110
110
110
110
230
230
110
110
30
30
230
Arrow ( ) indicates top
or vertical position (master
key-keyway) and coincides
with top or vertical position
of insert. This relationship
remains constant with alter-
nate polarizing key positions.
N—for Normal
Plug
Size A
Part No.
A43****N
A43****-1
A43****-2
A43****-3
A43****-4
A43****-5
X°
130
130
90
210
130
90
Y°
110
150
110
110
35
230
Part No.
B43****N
B43****-1
B43****-2
B43****-3
B43****-4
B43****-5
B43****-6
B43****-7
B43****-8
B43****-9
B43****-10
Size B
X°
130
130
130
105
155
80
190
130
215
80
130
Receptacle
Y°
110
90
145
110
110
110
110
170
110
230
30
Part No.
C43****N
C43****-1
C43****-2
C43****-3
C43****-4
C43****-5
C43****-6
C43****-7
C43****-8
C43****-9
C43****-10
C43****11
C43****12
C43****13
C43****14
59
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
Circular Connectors
MARC 43 Series Connectors
(Continued)
Configurations
Type P
Straight Plug, Push-Pull
Coupling, Sealed or
Unsealed (Mates with
Receptacles, All Types)
1.266
[32.16]
B
A
Shell
Size
A
B
C
Dimensions
A
B
.766
1.578
40.08
19.46
1.656
.953
42.06
24.21
1.75
1.141
28.98
44.45
Type PF
Straight Plug, Square
Flange Mounting, Push-Pull
Coupling, Sealed or
Unsealed (Mates with
Receptacles, all Types.)
.175
[4.44]
.062
[1.57]
D
A
Dia.
B
Typ.
C
Typ.
1.266
[32.16]
.110 – .130
p
y
T
[2.79 – 3.30]
.
Panel Cutout
Shell
Size
A
B
C
Dimensions
A
.730
18.54
.920
23.37
1.110
28.19
B
.664
16.86
.786
19.96
.924
23.47
C
.875
22.23
1.000
25.40
1.125
28.58
D
.750
19.05
.940
23.88
1.130
28.70
Type PT
Straight Plug, Threaded
Coupling, Sealed or
Unsealed (Mates with
Receptacles, Types H, HH,
and FT)
1.500
Max.
[38.1]
Master Keyway
A
T
Thread
Lockwire Holes
Shell
Size
A
B
C
A
.813
20.65
1.000
25.40
1.19
30.23
Dimensions
T (Class 2B)
5/8-32 UN
13/16-28 UN
1-28 UN
60
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
Circular Connectors
MARC 43 Series Connectors
(Continued)
Configurations
(Continued)
Type H
Receptacle, Single Hole
Mounting
Sealed or Unsealed
(Mates with Plugs, Types P,
PF and PT)
.065–.085
[1.65–2.16]
1.36
[34.54]
.080–.100
[2.03–2.54]
.125
[3.17]
Master
Key
A
Hex.
C
Hex.
D
E
T
Thread
B
Hex.
Panel Cutout
Shell
Size
A
B
C
Dimensions
B
C
D
E
T (Class 2A)
A
.75 .687 .562
.607-.611
.625-.629
5/8-32 UN
15.8-15.97
19.05 17.45 14.27 15.42-15.52
.794-.798
.812-.816
.937 .875 .75
23.80 22.23 19.05 20.17-20.27 20.62-20.72 13/16-28 UN
1.125 1.062 .875
.975-.979
.999-1.003
1-28 UN
28.58 26.97 22.23 24.77-24.87 25.37-25.47
.313 [7.95] max. panel for P & PF
.109 [2.77] max. panel. for PT
Circular
Connectors
Type 43F
Receptacle, Box Mounting,
Sealed or Unsealed (Mates
with Plugs, Types P and PF)
.065–.085
[1.65–2.16]
1.36
[34.54]
.052–.072
[2.03–2.54]
Master Polarizing
Key
C
Hex.
A
Typ.
D
3
Panel Cutout
B
Typ.
.110–.130
Dia.
[2.79–3.30] Typ.
Shell
Size
A
B
C
A
.875
22.23
1.000
25.40
1.125
28.58
Dimensions
B
.594
15.08
.786
19.96
.906
23.01
C
.562
14.27
.75
19.05
.875
22.23
D
.595
15.11
.783
19.89
.960
24.38
Note:
Unless otherwise shown, tolerances are: Decimals ±.015 [±.381], fractions ±
1
⁄
32
.
61
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
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