M39029/77-428 Amphenol, M39029/77-428 Datasheet - Page 39

• 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

Coax, Twinax & Triax PC Tail Contacts
for Subminiature Cylindricals
general description, application data
Amphenol
are currently supplied as follows:
•
•
•
PC Tail shielded contacts provide a cost effective packag-
ing solution for limited space applications where connec-
tors are attached to printed circuit boards. High reliability is
assured with factory pre-assembled contacts and stan-
dardization termination to the board. PC Tail contacts are
available for MIL-DTL-38999 Series I and III cylindrical
connectors and also for ARINC 404, ARINC 600 and R27
rect angular connectors. The following pages (36 & 37)
show the avail able PC Tail contact part numbers for
Subminiature Cylindricals. See the Rectangular Section of
this catalog for information on twinax contacts for ARINC
Rect angular connectors along with compatible cable
termina tions. Consult Amphenol Aerospace for further
information on the applicable tooling for these contacts.
TYPICAL ELECTRICAL PERFORMANCE
Size 8, 12 & 16 PC Tail Coax Contacts
Contact Resistance:
Center @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Outer @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Operating Frequency: 0–500 MHz
Dielectric Withstanding Voltage:
Center to Outer 500 VAC Rms @ Sea Level
Insulation Resistance
1,000 megohms minimum @ 25°C
TYPICAL ELECTRICAL PERFORMANCE
Size 8, 10 & 12 PC Tail Twinax Contacts
Contact Resistance:
Center @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Intermediate @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Outer @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Operating Frequency: 0–20 MHz
Dielectric Withstanding Voltage:
Center to Intermediate 500 VAC Rms @ Sea Level
Intermediate to Outer 500 VAC Rms @ Sea Level
Insulation Resistance
1,000 megohms minimum @ 25°C
TYPICAL ELECTRICAL PERFORMANCE
Size 8 PC Tail Triax Contacts
Contact Resistance:
Center @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Intermediate @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Outer @ 1 Amp, 55 millivolts max. voltage drop @ 25°C
Operating Frequency: 0–500 MHz
Dielectric Withstanding Voltage:
Center to Intermediate 500 VAC Rms @ Sea Level
Intermediate to Outer 500 VAC Rms @ Sea Level
Insulation Resistance
1,000 megohms minimum @ 25°C
8, 12 and 16 Coax
8, 10 and 12 Twinax
8 Triax (socket only)
®
Printed Circuit Tail Contacts
35
D38999 Connector with PC Tail Coax Contacts,
Sealing Plugs in unused contact cavities and
PC Tail Alignment Disc
PC Tail Coax and Twinax Contacts for
Attachment to Printed Circuit Boards
Size 8, PC Tail Twinax Socket Contact
for use in D38999 Connectors