Amphenol Aerospace Quadrax Contacts
DURABLE HIGH SPEED CONTACTS
Amphenol Quadrax contacts are designed to meet ASTM E595 outgassing standards for aerospace applications such as ethernet, AFDX (Avionics Full Duplex Switched Ethernet) and Cockpit (display) & In-Flight Entertainment.
These high speed/frequency Amphenol Quadrax contacts feature a rugged outer wall for increased durability, gold plated finish, and crimp termination to protect four strategically spaced inner contacts that form two 100-150 Ohm matched impedance differential pairs.
When these Amphenol Quadrax contacts are matched with a MIL-DTL-38999 Series III or ARINC style connector, they form a high speed connector suitable for use in harsh and demanding environments. Amphenol Quadrax contacts can handle up to 1.25 GHz of bandwidth and data transfer rates in excess of 2.5 Gbps and provide an excellent alternative for Ethernet 100 Base-T-100 Ohm, Gigabit Ethernet 1000 Base-T-100 Ohm, Fibre Channel-150 Ohm, and IEEE1394B FireWire-110 Ohm.
PEI-Genesis offers these Quadrax contacts manufactured by Amphenol which are available in size 8 crimp termination style or with PC tails.
Features & Benefits
- Four strategically spaced inner contacts form two 100 or 150 Ohm matched impedance differential pairs
- Outer contact has rugged wall section for durability
- Available in size 8 crimp termination style
- Also available in size 8 with PC tails
- Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts
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AMPHENOL QUADRAX CONTACTS – FEATURES
Amphenol Quadrax Contacts offer several advantages for high data transfer rates, low power consumption and excellent EMI compatibility:
- Four strategically spaced inner contacts form two 100 or 150 Ohm matched impedance differential pairs
- Outer contact has rugged wall section for durability
- Available in size 8 with PC tails
- Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts
Amphenol Quadrax Contacts for Printed Circuit Board Attachment – Available for MIL-DTL-38999 Series III Circular connectors with straight PC tail termination and with compliant pin termination. These provide the ideal solution for bringing high speed data transmission to the board.
Amphenol Quadrax Contacts for Rectangular Board Level Connectors – Incorporate the same size 8 Quadrax PCB contacts as used in circular 38999 connectors.
- 0.025 ±0.002 PTH Quadrax contact
- 0.040 ± 0.003 PTH shell grounding
- Accomodates backplane 0.125 inch min. thickness
- Consult Amphenol Aerospace for availability of additional connector configurations
AMPHENOL QUADRAX CONTACTS – MATERIALS & FINISHES
Quadrax Contacts are gold plated,
crimp termination Finish of mating contacts parts: supplied with 0.000050 min. gold over nickel on mating parts. Consult Amphenol for availability of
other finishes.
AMPHENOL QUADRAX CONTACTS – ELECTRICAL DATA
Quadrax Size 8 Contact Performance:
- Bandwidth: Up to 3 Gigahertz
- Data Rate: Exceeding 3 Gbits/sec.
- Voltage Rating: 500 Vrms max. @ sea level
- Dielectric Withstanding Voltage: 1000 VAC rms between all inner contacts @ sea level, 500 VAC rms between inner and outer contacts @ sea level
AMPHENOL QUADRAX CONTACTS – MECHANICAL
Typical Quadrax Socket Contact has socket outer contact with a socket inner contact Typical Quadrax Pin Contact has pin outer contact with a pin inner contact
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Amphenol Tri-Start, 38999 Series III* Connectors can be ordered with the following popularly used Quadrax contacts:
- 100 ohm quadrax 21-033385-051 socket contacts
- 100 ohm quadrax 21-033384-051 pin contacts
AMPHENOL QUADRAX CONTACTS – EXAMPLE
SHELL SIZE
INSERT ARRANGEMENT ALTERNATE KEYING POSITION
STEP 1: SELECT A CONNECTOR TYPE
TV = Tri-Start Series Connector with metal shells
TVP = Back panel mounted receptacle with metal shells
CTV = Tri-Start Series Connector with composite shells
CTVP = Back panel mounted receptacle with composite shells
STEP 2: SELECT A SHELL STYLE
00 = Wall mount receptacle
02 = Box mount receptacle available only with the PCB tails and epoxy backfilled (non-removable)
06 = Straight plug
07 = Jam nut receptacle
STEP 3: SELECT A SERVICE CLASS WITH QUADRAX
RQF = Electroless nickel plated aluminum
RGQF = Electroless nickel plated ground plane aluminum
RQW = Olive drab cadmium plate
RGQW = Olive drab cadmium plated ground plane aluminum
RQB = NiAlBronze
RGQB = NiAlBronze ground plate
RQK = Corrosion resistance stainless steel
RGQK = Stainless steel ground plate
QDT = Durmalon plated, Nickel-PTFE alternative to cadmium
GQDT = Groundplane Durmalon
STEP 5: SELECT CONTACT TYPE
P = Pin contacts
S = Socket contacts
STEP 6: SELECT AN ALTERNATE KEYING POSITION
Locksmith keying - rotation of minor keys. See Series III Alternate Positions below
"N" not required for normal position
Tri-Start Alternate Positions
A plug with a given rotation letter will mate with a receptacle with the same rotation letter. The angles for a given connector are the same whether it contains pins or sockets. Inserts are not rotated in conjunction with the master key/keyway.
Key & Keyway Arrangement Identification Letter
The incorporation of quadrax or differential twinax contacts requires a modified connector to accommodate keyed contacts.
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