D38999/20JJ11SB-LC Amphenol, D38999/20JJ11SB-LC Datasheet - Page 128

• Manufacturer Part Number: D38999/20JJ11SB-LC
• Description: Circular MIL / Spec Connectors 11P SIZE 25 WALL MOUNT RECEPTACLE SKT
• Manufacturer: Amphenol
• Series: 38999 Seriesr

Specifications of D38999/20JJ11SB-LC

• Mil Type: MIL-DTL-38999 III
• Product Type: Connectors
• Contact Style: Socket (Female)
• Shell Style: Receptacle
• Shell Size: 25
• Number Of Contacts: 11
• Insert Arrangement: 25-11
• Mating Style: Threaded
• Mounting Style: Panel

* More in-depth information on attenuation is available in:
L-1146, General Design Guideline for EMI Filters and/or
TVS (Transient Voltage Suppression) Connectors.
Also for further information ask for:
L-1145, How to Specify Filter Connectors.
EMI Capabilities
continues
Amphenol provides a wide range of filtering solutions. You
can select your options for your particular interference
threats - VHF, UHF, HF or other filter ranges, then couple
with a connector package of your choice. Or give Amphenol
your custom shell design requirements for assistance in
designing your unique filter solution.
EMI Filter connectors are intended for use in temperatures
from –55°C to +125°C. Attenuation will change with feed-
through current and temperature.*
To assure reliability, connectors may be subjected to an
attenuation performance test verifying proper assembly and
grounding of the filters. Attenuation data on filter per-
formance is stated in reference to a 50 ohm impedance
system in order to allow filter performance to be more
easily translated into real world impedances. Those inter-
ested in determining the expected filter performance in an
impedance system other than 50 ohms may refer to page
131 of this catalog or may contact Amphenol Aerospace for
further assistance.
It is suggested that the user analyze his system
require ments for EMI protection in the following areas:
Definition of Filter Contacts:
Filter contacts can be provided in most frequencies in
contact sizes 22 or larger. Consult Amphenol Aerospace
for availability.
Tubular connector designs will meet 3 amps RF current
from –55°C through +125°C. Planar connector designs
will meet 5 amps.
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UHF-1
VHF-1
MF-1
HF-1
Working voltage (DC or AC and Frequency)
Peak voltage
Desired attenuation at a given frequency level
Any special capacitance limitations
50 dB performance between 300 - 2999 MHz
50 dB performance between 300 - 2999 KHz
50 dB performance between 30 - 2999 MHz
50 dB performance between 3 - 29 MHz
Ultra High Frequency
Very High Frequency
Medium Frequency
High Frequency
Contact Amphenol Aerospace for more information 800-678-0141 • www.amphenol-aerospace.com
Contact Options
Methods of Wire Termination
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Coaxial, concentric twinax, triax and quadrax contacts can be
included in arrangements of filtered contacts for signal or power
circuits (See Amphenol catalog 12-130, High Frequency
Contacts for Multi-Pin Connectors).
Filter contacts with differing cut-off frequencies can be mixed in
any given insert arrangement. (ratio 100:1 typical)
Ground, insulated or filter contacts can be combined within the
same connector to meet unique or changing frequency
protection requirements.
Thermocouple contacts
Diodes for EMP
Solder cup - wire termination
PCB termination (Pre-tinning is available)
Solderless wrap
Amphenol
termination. It uses crimp insertable socket contacts on
conductor wires. Sockets mate with filter pins within the
connector body. (Socket type M39029/57). (For further contact
information, see section, MIL-DTL-38999 Series I & II).
Weld terminal for thermocouple contacts
Planars, MOV’s, Tubular and Diode Contacts
®
UTS (Universal Termination System) allows crimp
Amphenol
Planar Array
Assembly
Capacitor and
MOV Planars
Tubular Filters and
Diode Contacts
Aerospace
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