Amphenol /Matrix
MIL-C-26482, Series 2 Connectors
®
®
12-071-4
Bayonet Coupling, with Crimp Rear Release Contacts
For Military and Industrial Interconnection Applications
Amphenol
This catalog covers the Amphenol
®
/Matrix
®
MIL-C-
26482, Series 2 Connectors. These connectors are
bayonet coupling type, and they feature crimp con-
tacts that are rear insertable and rear releasable. They
can be ordered through Amphenol, by military or
equivalent proprietary part numbers.
The Matrix
®
connectors covered in this catalog
broaden the miniature cylindrical family offered by
Amphenol, so that now users have the broadest range
of product available to them. Additional miniature
cylindricals are covered in the Amphenol catalog, 12-
070, which is available upon request. The 12-070
Amphenol
®
catalog covers a large variety of miniature
cylindricals including the following:
• MIL-C-26482, Series 1 - bayonet coupling connec-
tors with solder contacts
• MIL-C-26482, Series 1 - bayonet coupling connec-
tors with front release crimp contacts
• Other proprietary crimp and solder types including
hermetics and connectors with printed circuit board
contacts, as well as other shell styles, alternative
connector finishes and additional contact options
• Additional miniature cylindricals that have double
stub threaded coupling rather than bayonet coupling
See page 15 for more information on these additional
miniature cylindrical connector products.
Also, ask for these Amphenol Product Catalogs:
Amphenol Industrial Connector Brochure, SL-381,
for an overview of the industrial family of connec-
tors.
Amphenol Brochure SL-100, which provides an
overview of all products, military and industrial,
offered through Amphenol Aerospace.
Should more information be required concerning the
connectors covered in this publication, or if special
application needs arise, please contact:
Amphenol Corporation
Amphenol Aerospace
40-60 Delaware Avenue
Sidney, New York 13838-1395
Telephone 607-563-5011
Fax: 607-563-5157
Web site: www.Amphenol-Aerospace.com
Visit our website for this catalog and other catalogs of
Amphenol products.
TABLE OF CONTENTS
Amphenol
®
/Matrix
®
MIL-C-26482, Series 2
Connectors
Introduction, Table of Contents. . . . . . . . . . . . . . . . . .1
General Description, Features and Benefits. . . . . . . .2
Class Descriptions, Performance Specifications . . . .3
Shell Styles, Dimensional Data:
Wall Mounting Receptacle, Narrow Flange . . . . . .4
Wall Mounting Receptacle, Wide Flange . . . . . . . .5
Cable Connecting Receptacle,. . . . . . . . . . . . . . . .6
Jam Nut Receptacle. . . . . . . . . . . . . . . . . . . . . . . .7
Straight Plug,
Straight Plug with RFI Grounding Fingers . . . . . . .8
Insert Arrangement Chart,
Insert Alternate Positions . . . . . . . . . . . . . . . . . . . . . .9
Insert Arrangement Patterns. . . . . . . . . . . . . . . . 10-12
Contact Information, Sealing Plugs,
Crimping and Insertion/Removal Tools. . . . . . . . . . .13
How to Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Additional MIL-C-26482/Miniature Cylindrical
Connectors offered by Amphenol . . . . . . . . . . . . . . .15
Sales Office Listing
Amphenol Aerospace operates Quality Systems that are Certi-
fied to ISO-9001 and AS-9100 by third party Registrars.
1
®
Amphenol
®
/Matrix Miniature Cylindrical
MIL-C-26482, Series 2 Connectors
Amphenol broadens their Miniature Cylindrical Family of
Connectors with the addition of the Matrix
®
Product line
of MIL-C-26482, Series 2 connectors.
MS3470
wall mounting receptacle
with narrow flange
MS3472
wall mounting receptacle
with wide flange
This series provides a bayonet coupling connector with crimp
rear insertable, rear releasable contacts.
DESIGN CHARACTERISTICS
• Medium size, environmentally resistant connector
• Recommended operating voltage to 1,000 VAC (RMS)
at sea level
• Quick positive coupling assured by 3 point bayonet
coupling system
• Visual confirmation of complete coupling
• Eliminates mismating by the use of five key/keyway design
• Insertion and removal of contacts from the rear of the con-
nector assures no damage to the front that might affect the
sealing characteristics
MS3471
cable connecting receptacle
• Utilizes same standard qualified rear-release type plastic
tool for contact insertion and removal
• Contacts are qualified to MIL-C-39029 requirements – BIN
coded (three color bands), and are crimped with standard
crimp tools per MIL-C-22520
• Grommets are constructed of tear-resistant elastomer and
experience no degradation when exposed to a broad
range of fluids
• Sealing over a range of wire diameters is assured by a tri-
ple webbed grommet at the rear of the connector
MS3474
jam nut receptacle
• Closed entry socket side of the insert is designed with a
lead-in chamfer and a hard face that will accept a pin con-
tact bent within pre-established limits
• Elastomer interfacial seal on the pin side has raised barri-
ers around each pin which displace into the socket cham-
fer when mated, providing a positive moisture seal
CUSTOMER OPTIONS
• Shell styles within this family include:
Wall mount with either a narrow or a wide flange, jam nut
single hole mount, and cable connecting receptacles,
along with standard plugs or plugs with RFI grounding fin-
gers, in shell sizes 8 to 24
• MS and Proprietary versions available
• Accommodation of contact sizes 20, 16 and 12
• 34 insert arrangement patterns available, accommodating
from a minimum of 3 to a maximum of 55 circuits
• Alternate positioning available
• Various finishes are available (for information on non-cad-
mium zinc alloy plating, consult Amphenol, Sidney, NY)
MS3476
straight plug
MS3475
plug with RFI grounding
fingers
2
Amphenol /Matrix Miniature Cylindrical
MIL-C-26482, Series 2 Connectors
class descriptions, performance specifications
®
®
CLASS DESCRIPTIONS
Military
MIL-C-26482, Series 2
Amphenol/Matrix
Proprietary MB1 Series
Description
Class L
Class E
Class R
Class A
–
Class W
Class R
–
–
Class A
Class G
Class W
Aluminum shell, electroless nickel finish, fluid resistant
Inactive, superceded by Class L*
Inactive, superceded by Class L*
Aluminum shell, black non-conductive anodized finish, fluid
resistant
Stainless steel shell, passivated, fluid resistant
Aluminum shell, olive drab cadmium plated, corrosion/fluid
resistant
* Ref. MIL-C-26482
PERFORMANCE SPECIFICATIONS
SERVICE RATINGS**
Service
Rating
Recommended
Operating AC Voltage
at Sea Level
Test Voltage AC (RMS), 60 cps
Sea Level
50,000 ft.
70,000 ft.
110,000 ft.
I
II
600
1,000
1,500
2,300
500
750
375
500
200
200
** Service Rating is comparable to MS rating A. Miniature connectors rated Service Rating I will provide a minimum flashover
voltage at sea level of 2,000 volts AC (RMS). Service Rating II is comparable to MS Service Rating D, and will provide a
minimum flashover voltage of 2,800 volts AC (RMS) at sea level.
Please note that the electrical data given is not an establishment of electrical safety factors. This is left entirely in the
designer’s hands, as he can best determine which peak voltage, switching surges, transients, etc. can be expected in a
particular circuit.
OPERATING TEMPERATURE RANGE
SHOCK AND VIBRATION REQUIREMENTS
–65°C (–85°F) to 200°C (392°F)
ENVIRONMENTAL SEAL
When tested as follows, the connector shall sustain no
physical damage, or electrical discontinuity exceeding
one microsecond.
SHOCK:
Wired, mated connectors with the specified accessory
attached will meet the altitude immersion test specified in
MIL-C-26482.
DURABILITY
Pulse of an approximate half sine wave of 300g magnitude
with duration of 3 milliseconds applied in three axes.
VIBRATION:
Minimum of 500 mating cycles.
Sixteen hours of random vibration having a range of 50 to
2,000 Hz with a 41.7G peak level.
3
Miniature Cylindrical MIL-C-26482, Series 2
MS3470
wall mounting receptacle with narrow flange
Receptacle Shell, Wall Mount with Narrow Flange,
Bayonet Coupling
Military No. MS3470
Amphenol/Matrix No. MB10
A Max. Typ.
B Typ.
Master Keyway
1.405 Max.
Shell 8 Thru 18
1.465 Max.
Shell 20, 22, & 24
H Accessory Thread
3 Teeth Equally Spaced
120
˚
Apart
C Dia.
D Dia. Max.
Grommet
Blue Color Bands
T Dia. Mounting
Holes Typ. 4-Places
.190
Grommet Extension
.130
.290 Min. Full Thread
E
F
To complete order number see how to order, page 14.
H
Accessory Thread
Class 2A
Shell
Size
A
Max.
B
±.005
C Dia.
±.003
D Dia.
Max.
E
F
±.016
T
±.005
8
10
12
14
16
18
20
22
24
.828
.954
1.047
1.141
1.234
1.328
1.453
1.578
1.703
.594
.719
.812
.906
.969
1.062
1.156
1.250
1.375
.471
.588
.748
.873
.998
1.123
1.248
1.373
1.498
.305
.405
.531
.665
.790
.869
.994
1.119
1.244
.462/.431
.462/.431
.462/.431
.462/.431
.462/.431
.462/.431
.587/.556
.587/.556
.620/.589
.062
.062
.062
.062
.062
.062
.094
.094
.094
.5000-20 UNF
.6250-24 UNEF
.7500-20 UNEF
.8750-20 UNEF
1.0000-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
.120
.120
.120
.120
.120
.120
.120
.120
.147
4
