142-4408-106 Emerson Network Power, 142-4408-106 Datasheet - Page 33
![RF Connectors R/A PLG 142/400 Ni](/photos/32/16/321662/142-4408-106_lg_sml.jpg)
142-4408-106
Manufacturer Part Number
142-4408-106
Description
RF Connectors R/A PLG 142/400 Ni
Manufacturer
Emerson Network Power
Datasheet
1.133-3711-801.pdf
(294 pages)
Specifications of 142-4408-106
Product
Connector
Rf Series
SMA
Gender
Plug
Polarity
Reverse
Contact Plating
Gold
Shell Plating
Nickel
Impedance
50 Ohms
Termination Style
Crimp
Connector Type
Plug Crimp
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Bodies: Stainless steel per QQ-B-626, gold plated* per MIL-G-45204
Contacts:
Female - beryllium copper per QQ-C-530, gold plated per
Contact Support Beads: PTFE fluorocarbon per ASTM D 1710 and
Seal Rings: Silicone rubber per ZZ-R-765
.00005" min. or passivated per MIL-F-14072 B (EL) 300
MIL-G-45204 .00005" min.
ASTM D 1457 or modified PPE resin
The Johnson SMK Connector provides an excellent solution
for demanding applications requiring high frequency trans-
mission. Although similar to the SMA interface, a smaller
internal body diameter (2.92mm) and air dielectric provide
a higher cutoff frequency and other key advantages:
• Precision manufacturing allows superior electrical
• Female contacts have a unique three-slot construction,
• Precise assembly tooling assures excellent, repeatable contact and support bead location on cabled connectors.
• Connector mating interface per MIL-STD-348
• Mating interface control provides consistent electrical performance.
• The plug connector VSWR is 1.20 Max to 40 GHz and a 12 inch SMK plug to plug cable assembly performs
• The Field Replaceable Jacks are teamed with a high quality hermetic seal feed thru for use in sealed
• The SMK plug interface employs more precise dimensions than an SMA and uses a shorter snub nose male
* All gold plated parts include a .00005" min. nickel underplate barrier layer.
performance to 40 GHz.
which enhances connectivity by creating a more rugged connector
while reducing the chance of intermittent connections.
better than 1.35 VSWR to 40 GHz.
circuit modules.
pin such that the connector bodies align before the contacts engage.
Connectivity Solutions
PLUG
MATERIAL SPECIFICATIONS
Johnson SMK (2.92mm) Connectors
Tel: 800-247-8256
Mating Engagement for SMK (2.92mm) Series
•
SMK - 50 Ohm Connectors
Fax: 507-833-6287
Engagement Design: MIL-STD-348, Series SMK (2.92mm)
Engagement/Disengagement Force: 2 inch-pounds maximum
Mating Torque: 7 to 10 inch-pounds
Coupling Proof Torque: 15 inch-pounds minimum
Coupling Nut Retention: 60 pounds minimum
Contact Retention: 6 lbs. minimum axial force (captivated contacts)
Cable Retention:
*Or cable breaking strength whichever is less.
Durability: 500 cycles minimum
.086 Semi-Rigid ...................................30
.141 Semi-Rigid ...................................60
JACK
Notes:
1. ID of contact shall meet VSWR and connectivity requirements
when mated with dia. .0355-.0365 male pin.
•
www.EmersonNetworkPower.com/connectivity
INCHES (MILLIMETERS) • CUSTOMER DRAWINGS AVAILABLE ON REQUEST
MECHANICAL RATINGS
PLUG
Axial Force* (lbs) Torque (in-oz)
16
55
(2.92mm)
JACK
33
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