D38999/26JH55JN Amphenol, D38999/26JH55JN Datasheet - Page 86
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D38999/26JH55JN
Manufacturer Part Number
D38999/26JH55JN
Description
Circular MIL / Spec Connectors 55P SIZE 23 STRAIGHT PLUG SKT
Manufacturer
Amphenol
Series
38999 Seriesr
Datasheet
1.D3899926WG41SN.pdf
(208 pages)
Specifications of D38999/26JH55JN
Mil Type
MIL-DTL-38999 III
Product Type
Connectors
Contact Style
Socket (Female)
Shell Style
Plug
Shell Size
23
Number Of Contacts
55
Insert Arrangement
23-55
Mating Style
Bayonet
Mounting Style
Cable
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Amphenol
Printed Circuit Board Applications
Amphenol provides three popular connector series with PC tail contacts. The following key
points give a quick overview of these series. For more detail, there are series catalogs
available as listed below*. Go to www.amphenol-aerospace.com to view and download
these catalogs. There is a guide to selecting a circular connector with printed circuit board
contacts on the following page to assist you further.
How to Measure the PCB Tail Length
The tail length of the PCB is the portion of the contact that extends beyond the rear of the
shell. This length will vary in relationship to the mounting flange, depending on the series
of connector selected. Standard lengths are shown on the connector shell style drawings
in this catalog. These shell style drawing pages also provide how to order part numbering
for standard PCB cylindrical connectors. When computing the desired tail length, it is
important to take into consideration the following factors:
Would Alignment Discs, Headers or
Special Stand-off Shells be Beneficial?
The answer is yes, any mechanical methods needed to stabilize the board or flex to the
connector and/or the panel is beneficial. The PCB tails shown in this catalog are of one
diameter. Stepped tails or PCB tails with an increased diameter on a designated portion
may be required for certain applications.
Alignment discs are available which provide ease of alignment of pins to boards,
protection during shipment and optimized electrical circuit separation. Header
assemblies (see pages 195 & 196) are available which provide time and cost saving
potentials. Standoffs may be required for certain applications. Amphenol has developed
a new stand-off adapter (see page 124) which may eliminate the need for special
stand-off shell designs. Connectors with clinch nuts can be provided. Please call
Amphenol to discuss any optional designs or any special requirements.
MIL-DTL-38999 CONNECTORS, METAL & COMPOSITE
•
•
•
•
•
•
•
Note: MIL-DTL-38999 supersedes MIL-C-38999.
• The connector series and shell style.
• The mounting style of the receptacle; jam nut (D hole) or panel mount (four holes).
• The extension of the tail beyond the opposite side of the board or the flex.
• The space required to adequately clean flux from between the board or flex and the
Lightweight, compact, high density and high reliability cylindrical
Operating voltage to 900 VAC (RMS) at sea level
Environmentally resistant
Solder or crimp rear release contacts in mating plug
Series I (LJT) - Bayonet coupling
• Scoop-proof (recessed pins) offers maximum contact protection
• For applications requiring maximum weight/space savings and reliability
Series III (Tri-Start) - Threaded, quick coupling in one
complete turn
• Designed for general duty as well as severe
• Superior EMI shielding with grounding fingers and
• Filter/Transient protection versions available
• Scoop-proof contact protection
• Stainless steel firewall versions, and composite versions
• Available in Hermetics
Series II (JT) - Bayonet coupling
This can affect the overall length of the tail.
rear of the connector shell. Connectors that are mounted flush against the board may
trap soldering flux which could lead to corrosion of the solder joints.
environmental applications
metal-to-metal mating
®
Circular Connectors for
Contact Amphenol Aerospace for more information 800-678-0141 • www.amphenol-aerospace.com
Special 38999 Connector with
Stand-off Shell and
PC Tails
Universal Header Assemblies are avail-
able for Flex Print/PC Board Mounting.
Beneficial espe cially when electrical
testing of the connector requires it to
be removed and reattached.
Special Configuration Composite
Amphenol
38999 Series III Connector with a
38999 Series III Box Mount
Connector with PC Tails
Stand-off Adapter on a
Jam Nut Receptacle.
Shell and PC Tails
Aerospace
85
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