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K Female RF Connector End Launch
Description: 2.92 mm, Female, Straight, End Launch, PCB Connector, with .007" Pin (Solderless), Apply to End Launch PCB, Work to 40 GHz
● VSWR: 1.30 Max @ 40 GHz
● Insertion Loss: ≤ 0.38 dB @ 40 GHz
● Mating/unmating Life: ≥ 500 Cycles
● Body Material: Stainless Steel
● Housing Material: Brass
● Contact Pin Material: Becu
Description
Introduction
Hualink high-performance 2.92 mm female End Launch connectors are designed to provide less reflection up to 40 GHz for single-layer and multi-layer printed circuit boards where the high-frequency signal is on the top layer. It's designed into 2 pieces for more stable installation on PCB, solderless design for both grounding and signal make it high-efficiency to install or uninstall, which save a lot of time and cost. Comparing to Standard High Profile version, low profile is more suitable if application limit the space.
Specification
Electrical | |
● Impedance: 50 Ω | ● Insulation Resistance: 5000 MΩ Min |
● Frequency Range: DC – 40 GHz | ● Dielectric Withstanding Voltage: 500 Vrms Min (Sea Level) |
● VSWR: 1.30 Max @ 40 GHz | ● Contact Resistance: ≤ 3 mΩ (Center Contact) |
● Insertion Loss: ≤ 0.38 dB @ 40 GHz | ≤ 2 mΩ (Outer Contact) |
Mechanical | |
● Mateable with SMA, 3.5 mm, SMK, K Series | ● Center Contact Retention Force: 6 lbs Min |
● Durability: ≥ 500 Cycles | ● Coupling Torque: 7- 8 lb-in Recommended |
Environmental | |
● Temperature Range: -55 ℃ to +85 ℃ | |
Material & Finish | |
● Body: Brass and SUS303 | ● Dielectric: Engineering Plastic and PTFE, Natural |
● Center Contact: Beryllium Copper, 30 μ" Gold | |
Features and Benefits
● Good Return Loss
● Solderless /No hurting to the PCB
● Ship with testing report and can be tracked
● High Precision
● Excellent Repeatability
● Install easily
Applications
● Research & Development
● 5G Communications/Wireless
● EMC/EMI
● Systems and modules
● Electric measurement
Outline Drawing

FAQ
1. End Launch Connectors – Installation Procedure
Step 1: Mount the end launch connector on the board in the desired position through 2 holes.
Step 2: Ensure the launch pin is centered on the signal trace of PCB.
Step 3: Ensure the housing is tight against the side face of PCB.
Step 4: Tighten the 1-72 mounting screws until the connector is not moving.
Step 5: Keep PCB and Connectors clear
2. Cut-off frequency of RF connector?

3. How much torque is recommended for a RF connector?
Connector Type | Recommended Coupling Torque |
SMA | 7 - 10 lb-in |
3.5 mm | 7 - 8 lb-in |
2.92 mm | 7 - 8 lb-in |
2.4 mm | 7 - 8 lb-in |
1.85 mm | 7 - 8 lb-in |
1.0 mm | 3.6 - 4.4 lb-in |
Type N | 12 - 15 lb-in |
Packaging, Shipping

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