M39029/77-428 Amphenol, M39029/77-428 Datasheet - Page 6

• Manufacturer Part Number: M39029/77-428
• Description: Circular MIL / Spec Connectors MIL-DTL-38999 I, III, IV Contact
• Manufacturer: Amphenol

Specifications of M39029/77-428

• Product Type: Contacts
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

High Speed Quadrax and
Differential Twinax Contacts
Amphenol provides the latest technology in high speed contacts - differential
twinax and quadrax contacts, size 8, for use in MIL-DTL-38999 Special*
Subminiature Cylindrical Connectors.
DIFFERENTIAL
TWINAX CONTACTS
High speed Differential Twinax contacts
consist of an outer contact with two inner
contacts spaced to form one 100 or 150 Ohm
controlled impedance differential pair. See
pages 15 and 16 for performance data and
ordering of Differential Twinax contacts, and
consult Amphenol Aerospace for more
information.
Differential Twinax and Quadrax contact options include:
• Crimp or printed circuit board termination
• Established designs to accommodate a variety of cable types and gages
• Ground plane connectors can incorporate quadrax contacts. These connec-
See pages 12-14 for performance data of Quadrax contacts. Consult Amphenol
Aerospace for further information needed.
* Requires modified connector to accommodate keyed contacts.
QUADRAX CONTACTS
High speed Quadrax contacts consist of an
outer contact with four inner contacts
spaced to form two 100 or 150 Ohm
controlled impedance differential pair.
Both contacts, when used in Amphenol
MIL-DTL-38999 Series III and ARINC type
connectors, provide an excellent alternative
for harsh environment applications such as:
• Ethernet 100 Base-T-100 Ohm
• Gigabit Ethernet 1000 Base-T-100 Ohm
• Fibre Channel-150 Ohm
• IEEE1394B FireWire-110 Ohm
tions have conductive inserts that ground the outer conductor of the contact
body to the shell of the connector. They accommodate size 8 and 12 shielded
contacts of which the size 8 can be quadrax type.
Differential Twinax Contact
Quadrax Contact
2
2
Differential Twinax and Quadrax
contacts provide high data transfer
rates, low power consumption,
and excellent EMI capability. They
offer controlled impedance of 100
or 150 Ohm and are ideal for use in
harsh environments.
D38999 Series III
Connectors
(standoff shell at
right and standard
shell below) with
Quadrax PC Tail
Contacts
D38999 Series III
Ground Plane
Connectors with
Quadrax PCB
Socket contacts
D38999 Series III
with Quadrax and
Power Contacts