High-Speed Quadrax Contacts

Amphenol Aerospace High-Speed Quadrax Contacts are made up of an outer contact with four inner contacts spaced to form two 100Ω or 150Ω controlled impedance differential pairs. Both contacts, when used in Amphenol MIL-DTL-38999 III and ARINC connectors, provide an excellent alternative for harsh environment applications. These applications include Ethernet 100 Base-T 100Ω, Gigabit Ethernet 1000 Base-T 100Ω, Fibre Channel 150Ω, IEEE1394B FireWire 110Ω. Amphenol Aerospace High-Speed Quadrax Contacts are gold-plated with crimp terminations. They offer low power consumption and EMI compatibility. 

Types of Circular MIL Spec Connectors

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Results: 75
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS Product MIL Type
Amphenol Aerospace Circular MIL Spec Contacts QUADRAX PI 65In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 38999 I III PC Twinax 18In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts CONTACT QUADRAX 46In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Tools, Hardware & Accessories TV 8 QDRAX METAL SEAL PLUG PCB 58In Stock
105Expected 02/10/2026
Min.: 1
Mult.: 1

Accessories
Amphenol Aerospace Circular MIL Spec Contacts 38999 III 8 SKT CONCNTRC TWIN 3In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 I, III


Amphenol Aerospace Circular MIL Spec Contacts 38999 I II III CON 12 COAX PIN 16In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 II


Amphenol Aerospace Circular MIL Spec Contacts CONTACT 4In Stock
Min.: 1
Mult.: 1
No
MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 38999 I III 8 DIFF TWX SKT CON 6In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts JT Series MIL-DTL-38999 II 9In Stock
Min.: 1
Mult.: 1
No
MIL-DTL-38999 I
Amphenol Aerospace Circular MIL Spec Contacts Hi Frequency Socket Contact 1In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 I, III
Amphenol Aerospace Circular MIL Spec Contacts 8P 100 OHMS PIN 1In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III
Amphenol Socapex Circular MIL Spec Contacts PIN SZ 8 TWINAX 4In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 I, III
Amphenol Aerospace Circular MIL Spec Contacts 8P 100 OHMS PIN 1In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Socapex Circular MIL Spec Contacts PIN SZ 8 TWINAX 50In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 I, III
Amphenol Socapex Circular MIL Spec Contacts PIN SZ 8 TWINAX ARINC600 20In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 I, III
Amphenol Aerospace T3-47TC08-LD
Amphenol Aerospace Circular MIL Spec Contacts TWINAX SOCKET 8 AWG 2In Stock
Min.: 1
Mult.: 1
No
Amphenol Aerospace Circular MIL Spec Contacts Bushing 83In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts D38999/20MC35AN W/ PC CON 6In Stock
Min.: 1
Mult.: 1

Amphenol Aerospace Circular MIL Spec Contacts 8P Pin use with Cbl PIC E6A3824 152In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 8P Socket use W/ Cbl PIC E6A3824 64In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 38999 I III CON 8 PIN COAX 7In Stock
Min.: 1
Mult.: 1
No
MIL-DTL-38999 I, III
Amphenol Aerospace Circular MIL Spec Contacts 38999 III PIN 8 QUADRAX CONTAC 30In Stock
18Expected 10/08/2026
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts CONTACT, SKT -QUADRAX 27In Stock
Min.: 1
Mult.: 1

MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 8P Socket use W/ Cbl GORE RCN8966-24 7In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III
Amphenol Aerospace Circular MIL Spec Contacts 22 AWG Quadrax Pin Contact for TV-R 10In Stock
Min.: 1
Mult.: 1
MIL-DTL-38999 III