Series II
Introduction
This catalog covers the Amphenol MIL-C-26482, Series 2 Connectors. These connectors are bayonet coupling type, and they
feature crimp contacts that are rear insertable and rear releasable. They can be ordered through Amphenol, by military or
equivalent proprietary part numbers.
The 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.
Should more information be required concerning the connectors covered in this publication, or if special application needs
arise, please contact factory :
Page Contents
Introduction
General description, features & benefits
Class descriptions, performance specifications
Insert Arrangement Chart
Insert Alternate Positions
Insert Arrangement Patterns
Shell Styles, Dimensional Data :
Wall Mounting Receptacle, Narrow Flange
Wall Mounting Receptacle Wide Flange
Cable Connecting Receptacle
Jam Nut Receptacle
Straight Plug,
Straight Plug With RFI Grounding Fingers
Contact Information, Sealing Plugs,
Crimping & Insertion/Removal Tools
Ordering Information
8
9
10
11
4
5-7
1
2
3
12
13
14
1
AMPHENOL
Series II
Amphenol Miniature Cylindrical
MIL-C-26482, Series 2 Connectors
Amphenol broadens their Miniature Cylindrical Family of
Connectors with the addition of the product line of
MIL-C-26482, Series 2 connectors.
This series provides a bayonet coupling connector with crimp rear
insertable, rear releasable contacts.
DESIGN CHARACTERISTICS
Medium size, environmentally resistant connector
MS3470
wall mounting receptacle
with narrow flange
MS3472
wall mounting receptacle
with wide flange
Recommended operating voltage to 1000 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 connectors
assures no damage to the front that might affect the sealing
characteristics
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 colour 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 triple
webbed grommet at the rear of the connector
MS3471
cable connecting receptacle
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 contact bent within
pre-established limits
Elastomer interfacial seal on the pin side has raised barriers
around each pin which displace into the socket chamfer when
mated, providing a positive moisture seal
CUSTOMER OPTIONS
Shell styles within this family include:
MS3476
straight plug
MS3475
plug with RFI grounding
fingers
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 fingers, 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-cadmium
zinc cobalt plating, consult factory)
AMPHENOL
2
Series II
Amphenol Miniature Cylindrical
MIL-C- 26482, Series 2 Connectors
class descriptions, performance specifications
CLASS DESCRIPTIONS
Military
MIL-C-26482, Series 2
Class L
Class E
Class R
Class A
-
Class W
* Ref. MIL-C-26482
Description
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
Proprietary class G - Stainless steel shell, passivated, fluid resistant
Aluminum shell, olive drab cadmium plated, corrosion/fluid resistant
PERFORMANCE SPECIFICATIONS
SERVICE RATINGS**
Service
Rating
I
II
Recommended
Operating AC Voltage
at Sea Level
600
1,000
Test Voltage AC (RMS), 60 cps
Sea Level
50,000 ft.
70,000 ft.
110,000 ft.
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 2000 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
-65
0
C (-85
0
F) to 200
0
C (392
0
F)
ENVIRONMENTAL SEAL
Wired, mated connectors with the specified accessory
attached will meet the altitude immersion test specified in
MIL-C-26482.
SHOCK AND VIBRATION REQUIREMENTS
When tested as follows, the connector shall sustain
no
physical damage, or electrical discontinuity exceeding
one microsecond.
SHOCK
Pulse of an approximate half sine wave of 300g magnitude
with duration of 3 milliseconds applied in 3 axes
DURABILITY
Minimum of 500 mating cycles.
VIBRATION
Sixteen hours of random vibration having a range of 50 to
2,000 Hz with a 41.7G peak level
3
AMPHENOL
