MIL-DTL-38999
Circular Connectors
And 38999-Style Connectors
Withstand Harsh Environments with
Rugged, Capable Connectors for Signal, Power,
Control, and Optical Needs
AEROSPACE, DEFENSE & MARINE
/// MIL-DTL-38999 CIRCULAR CONNECTORS
INTRODUCTION
MIL-DTL-38999 CONNECTORS
Series I
Series III
Series IV
MIL-DTL-38999 SERIES III STYLE CONNECTORS
Panel Seals
Hermetic Connectors
PCB Connectors
Board-Mount 38999 Connectors
Marine Connectors
DEUTSCH DTS-B Connectors
Band It Platform Connectors
Aluminum and Stainless Steel Connectors with
Integral Backshells
Power Connectors
DEUTSCH DTS-HC Connectors
POLAMCO Connectors
Lanyard Connectors
1760 Series Connectors (MIL-DTL-38999/31 and ACT98 and commercial /29)
Ultra-Dense Connectors
DEUTSCH Wildcat 38999 Connectors
38999 Series 1.5 Connectors
DEUTSCH HDJ/JN1003 Series Connectors
High-Speed Connectors
Quadrax Connectors
CeeLok FAS-X Connectors
High-Speed COTS Interface Connectors
POLAMCO USB Connectors
POLAMCO RJ45 Connectors
Fiber-Optic Connectors
Introduction
MC801 Connectors
DEUTSCH MC3 MKII Connectors
DEUTSCH MC4 Connectors
DEUTSCH MC5 Connectors
DEUTSCH MC6 Connectors
AviMT Connectors
38999-Style Connectors
PRO BEAM Inserts
MIL-T-29504 Style Optical Termini
Backshells and Rear Accessories
Specialty Connectors
DEUTSCH CBC Bussed Connectors
Assembly Instructions
4
18
30
44
56
62
65
102
110
120
125
137
138
144
156
173
186
189
193
195
199
205
211
217
224
226
233
235
237
281
286
TE Components . . . TE Technology . . . TE Know-how . . .
AMP | AGASTAT | CII | HARTMAN | KILOVAC | MICRODOT | NANONICS | POLAMCO | Raychem
SEACON | Rochester | DEUTSCH
Empower Engineers to Solve Problems, Moving the World Forward.
MIL-DTL-38999 Circular Connectors
MIL-DTL-38999 Connectors
MIL-DTL-38999 Series
Series I
Series III
Series IV
Coupling
Bayonet
Threaded
Breech lock
DEUTSCH Connector Family
DJT
DTS
DTS-K, DTS-L, DTS-S
ACT
DIV
Shell Material
Aluminum
Aluminum
Stainless steel
Composite
Aluminum
MIL-DTL-38999 Series III Style Connectors
Marine Connectors
DEUTSCH DTS-B Connectors
High-Speed Connectors
Quadrax Connectors
CeeLok FAS-X Connectors
High-Speed COTS Interface Connectors
POLAMCO RJ45 Connectors
POLAMCO USB Connectors
Power Connectors
DEUTSCH DTS-HC Connectors
POLAMCO Connectors
Lanyard Connectors
1760 Series Connectors
(MIL-DTL-38999/31 and ACT98 and commercial /29)
PCB Connectors
Board-Mount 38999 Connectors
Fiber-Optic Connectors
DEUTSCH MC3 MKII Connectors
DEUTSCH MC4 Duplex Connectors
DEUTSCH MC5 Connectors
DEUTSCH MC6 Connectors
MC801 Connectors
QPL Connectors
EB16 Connectors
PRO BEAM Inserts
Ultra-Density Connectors
DEUTSCH Wildcat 38999 Connectors
Specialty Connectors
DEUTSCH CBC Bussed Connectors
DEUTSCH Grounding Connectors
38999 Series 1.5 Connectors
DEUTSCH HDJ/JN1003
Series Connectors
Hermetic Connectors
Overview/Capabilities
38999 Series I bayonet coupling interface lengths
and Series II diameters
Internal contact bussing for grounding or power distribution
Nearly twice the contact density over standard Series III
DEUTSCH 2.5 mm termini
2.5 mm termini, compact Size 9 shell
DEUTSCH 1.25 mm termini
MT ferrule
ARINC 801 termini
MIL-PRF-29504/4 and /5 termini
EB16 contacts
Expanded beam termini
MIL-STD-1760 Types 1 and 2
Up to 300 A
Up to 1000 A
Cat 6a
USB 2.0 and 3.0
2 Gb/s
10 Gb/s, 1 or 4 Ethernet channels
Marine bronze shell
AEROSPACE, DEFENSE & MARINE
/// MIL-DTL-38999 CIRCULAR CONNECTORS
PAGE 3
MIL-DTL-38999 Circular Connectors
38999 Overview
MIL-DTL-38999 connectors are some of the most popular and
widely used subminiature circular connectors for military and
aerospace applications. With three coupling methods, nine shell
sizes, and a wide variety of contact arrangements, the connectors
help give you the range of choices you need. What’s more, the
original aluminum connectors have evolved to include stainless
steel and composite shells—supported by a range of finishes.
38999-Style Connectors
Because of the widespread popularity of 38999 Series III
connectors, the basic design has been adapted to a great many
additional configurations. These 38999-style connectors include
versions for power, fiber optics, filtering, high-speed networking,
commercial interfaces, pc board interfaces, and higher contact
densities. As a result, 38999-style connectors offer excellent
versatility and flexibility.
Rugged Reliability
When it comes to taming harsh environments, TE Connectivity
(TE) offers 38999 connectors to handle a wide range of
applications. We offer a broad array of configurations, materials
and finishes to help meet the performance requirements of
ground, aerospace, and marine applications. These highly
durable subminiature circular connectors are time tested for
reliability in some of the toughest environments.
TE helps meet the need for reliable performance with rugged
MIL-DTL-389999 connectors having 500 mating cycles,
operating temperatures to 200°C, corrosion-resistant and
corrosion-proof connector versions, scoop-proof designs, and
a variety of options for excellent electromagnetic interference
(EMI) control, such as filtering and fiber optics.
Designs that Save Space and Weight
The importance of reducing size and weight of components,
including MIL-DTL-38999 subminiature connectors, should
never be underestimated. Lighter, smaller connectors can
make a big difference in terms of contributing to greater
performance: longer flight times, greater payload capability, and
increased efficiency. Beyond the standard lightweight aluminum
connectors, we offer composite connectors to help support
greater weight savings.
Solve Tough Application Issues with TE
We work closely with customers to help meet their most
demanding requirements for some of the world’s toughest
applications. Whether for ground defense, commercial and
military aerospace, or marine applications, TE designs and
manufactures MIL-DTL-38999 subminiature circular connectors
to be ruggedly reliable, fast and easy to install, smaller and
lighter, and with more options, materials and configurations to
help maximize performance, reliability and efficiency.
AEROSPACE, DEFENSE & MARINE
/// MIL-DTL-38999 CIRCULAR CONNECTORS
PAGE 4
MIL-DTL-38999 Circular Connectors
MIL-DTL-38999 Connector Series Overview
Series I
Coupling Mechanism
Shell Materials
Bayonet, 1/3 turn
Aluminum
Stainless steel
Olive drab cadmium
Passivated
Electroless nickel
Electrodeposited nickel
Nickel PTFE
Black zinc nickel
9, 11, 13, 15, 17, 19, 21, 23, 25
128
22, 20, 16, 12, 8
Series III
Threaded, 360° turn
Aluminum
Stainless steel
Composite
Olive drab cadmium
Passivated
Electroless nickel
Electrodeposited nickel
Nickel PTFE
Black zinc nickel
9, 11, 13, 15, 17, 19, 21, 23, 25
187
23, 22, 20, 16, 12, 10, 8
SAE AS39029
Crimp
PCB tail
Solder cup**
Eyelet**
Scoop proof
Environmentally sealed
Hermetic versions
Filter versions
Spring fingers for EMI control
-65°C to +200°C
-65°C to +175°C
-65°C to +150°C
500
ACT composite Series III: 1500*
Series IV
Breech lock, 1/4 turn
Aluminum
Stainless steel
Olive drab cadmium
Passivated
Electroless nickel
Finishes
Shell Sizes
No. of Signal Contacts, Max.
Contact Sizes, Std.
Contact Type
Contact Styles
11, 13, 15, 17, 19, 21, 23, 25
128
22, 20, 16, 12, 8
Features
Operating Temperatures
Durability
(Mating Cycles)
*Achievable only with high durability contacts or by replacing them each 500 cycles
** Hermetic versions only
AEROSPACE, DEFENSE & MARINE
/// MIL-DTL-38999 CIRCULAR CONNECTORS
PAGE 5
ADI Reference Circuit
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