End Launch Connectors
Original inventor of the end launch connector - precision RF transitions for microstrip and GCPW PCB designs, up to 125 GHz
Southwest End Launch Connectors
The original end launch connector - invented by Southwest Microwave for low-loss, mode-free PCB signal launch
Southwest Microwave invented the end launch connector and continues to evolve the product line with new robust standard and narrow block thread-in models. End launch connectors provide a low VSWR, mode-free broadband response for single and multilayer microstrip or grounded coplanar waveguide (GCPW) printed circuit board designs. Frequency coverage from DC up to 125 GHz across multiple interface types: SMA (27 GHz), 2.92 mm (40 GHz), 2.40 mm (50 GHz), 1.85 mm (67 GHz), 1.35 mm (90 GHz), and 1.0 mm (125 GHz).
Key Features
Unique clamping mechanism and robust design for reliable PCB mounting
Unique Clamping Mechanism
Adapts to board thicknesses up to .300" (7.62 mm). No PCB via holes required. The clamping design provides reliable mechanical retention and repeatable RF performance.
Multiple Block Options
Available in narrow block (.350" width) for high-density layouts and standard block (.500" width) for general-purpose use. Thread-in and non-magnetic options available.
Design Support
PCB connector launch design and stack-up model recommendations provided. 3D models for mechanical layout and encrypted HFSS models (version 18.0 or newer) for electromagnetic simulation are available upon request.
Interface Options & Frequency
Six interface types covering DC to 125 GHz
SMA (SuperSMA) - 27 GHz
Jack (female) and plug (male) options. Proprietary Southwest SMA design with extended frequency to 27 GHz. Suitable for general-purpose RF and microwave applications.
2.92 mm - 40 GHz
Jack and plug options. Compatible with 2.92 mm and 3.5 mm interfaces. Excellent for radar, satcom, and test equipment.
2.40 mm - 50 GHz
Jack and plug options. Compact design with performance to 50 GHz. Ideal for aerospace and defense applications.
1.85 mm - 67 GHz
Jack and plug options. Compatible with 1.85 mm and 2.4 mm interfaces. Suitable for millimeter-wave systems and high-frequency test.
1.35 mm - 90 GHz
Female (jack) options. Between-series adapters to 1.0 mm available. For E-band, W-band, and emerging 5G/6G millimeter-wave applications.
1.0 mm - 125 GHz
Jack and plug options. The highest frequency coaxial connector in production. For D-band, V-band, and beyond-5G research applications.
Selection Guide
Pin/dielectric diameter and PCB thickness options
Pin / Dielectric Diameter
.010" / .0635" - Lower frequency options (SMA 01A series)
.007" / .0390" - Mid-frequency options (1.85 mm, 2.40 mm 03A series)
.005" / .0290" - Highest frequency options (1.0 mm, 1.35 mm, 2.92 mm, SMA 04A series)
PCB Thickness - Narrow Block (.350")
Up to .065" - Thread-in models (-9 suffix)
.040" to .090" - Thread-in models (-14 suffix)
PCB Thickness - Standard Block (.500")
Up to .100" - Standard models (-6 suffix)
.090" to .210" - Standard models (-7 suffix)
.190" to .300" - Standard models (-8 suffix)
Need end launch connectors?
Contact TMT to request product datasheets, 3D models, HFSS simulation models, and application support for your PCB launch design.
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