140-0000-973 Emerson Network Power, 140-0000-973 Datasheet - Page 11
![CONN JACK SMA END LAUNCH FIXTURE](/photos/2/30/23077/140-0000-973_sml.jpg)
140-0000-973
Manufacturer Part Number
140-0000-973
Description
CONN JACK SMA END LAUNCH FIXTURE
Manufacturer
Emerson Network Power
Series
SMAr
Specifications of 140-0000-973
Accessory Type
End Launch Connector
Product
Crimping, Stripping & Cutting Tools & Drills
Description/function
Soldering Mating Fixture for SMA Jacks
For Use With/related Products
SMA Jacks
Lead Free Status / RoHS Status
Not applicable / Not applicable
Lead Free Status / RoHS Status
Not applicable / Not applicable, Lead free / RoHS Compliant
Other names
J10081
Emerson Network Power • Tel: 800.247.8256 • Fax 507.833.6287 • www.EmersonNetworkPower.com/connectivity
As can be seen in the cut away portion of Figure 1, the connector’s center conductor pin is directly
attached in-line with the GCPW signal trace. The body of the connector is always attached to the signal
side ground. The design of the center conductor pin is a compromise between ease of assembly and
minimal discontinuity reactance. The diameter of the pin is matched approximately to the thickness of the
GCPW structure. Scaling down the pin diameter matches the electromagnetic field distributions with the
GCPW line in order to keep the discontinuity reactance small.
The output coax of the connector at the transition area is sized appropriately to match the thickness of the
high frequency board substrate. The output coax section extends well within the connector by means of
constant diameters, avoiding any abrupt diametrical changes at the circuit board edge which can create
large discontinuities.
Figure 1 - End Launch Connector Shown Attached to the GCPW Transmission Line
High Frequency SMA End Launch Connectors
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