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Amphenol Backplane Systems UHD Coax Connector

Amphenol's UHD Coax connector has a high-performance impedance-matched contacts of 50 Ohms nominal at 0-2 GHz. It's integral guidance simplifies use in blind-mate applications. It can be easily incorporated in the UHD Backplane and module connector assemblies. It's controlled contact float provides accurate mating alignment and has become an industry-standard hand crimping tool.

Some specifications are as follows:

  • 292 Digital Contacts
  • SEM-E Format
  • DESC 89065
  • 8 Coax Contacts
  • Rigid or Flex Terminations

Mechanical Operating Characteristics

Mating Force
16 oz. per contact
Cable Retention
10 lb min (with RG 174)
Contact Retention
10 lb min.
500 cycles per MIL-C-39012
Nominal Impedance
50 ohms
Working Voltage
500V RMS
Frequency Range
0-2 GHz
Contact Resistance (max)
Outer shield, 3 milliohms; inner signal, 6 millohms
Dielectric Withstanding Voltage
1,000V RMS (sea level)
RF Leakage
-50dB min @ 2GHz
RF Insertion Loss (max)
0.4dB @ 1.5GHz
Corona Level
250V RMS @ 70,000 feet
Temperature Range
-65°C to +125°C
MIL-STD-202, method 301
MIL-STD-202, method 213
Moisture Resistance
MIL-STD-202, method 101, test condition B
Temperature Cycling
MIL-STD-202, method 102, test condition C

Physical Operating Characteristics

Socket (center contact & plug) Brass per QQ-B-626
Socket (shell) Copper Alloy C17300
Pin (center contact) Copper Alloy C17300
Pin (shell) Brass per QQ-B-626
Dielectrics PTFE per ASTM-D-1457
Housings LCP Liquid Crystal Polymer per MIL-M-24519
Plating 30 microinches min. gold per MIL-G-45204, Type 2, Class 4, over 50 microinches min. nickel per QQ-NM-290, Class 1

Electrical Operating Characteristics


1.15 max 0-500MHZ
1.25 max 0-1GHz
1.35 max 1-4GHz

Return Loss 23dB 0-500MHz
19dB 0-1GHz
16dB 1-4GHz
Isolation 80dB min. 0-2GHz
Insertion Loss 0.2dB 0-2GHz
0.4dB 0-4GHz

Cable-to-Cable Mated Pair, Braided Cable RG316

Cable-to-Cable Mated Pair, Braided Cable RG316

Cable-to-Cable Mated Pair, .086" Semi-Rigid Cable

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