Product Overview
The model of SMA female PCB connector is SMA-KE SMT.SMA series are popular 50 ohms RF connectors, using a threaded interface, providing reliable and excellent electrical performancein high frequencies. They are widely used in aero and aero space, military weapons, wireless network, and microwave devices ordata communication. They also attach semi-flex or semi-rigid cables working up to 18GHz.
SMA Connector to PCB Connection Methods
1. Direct Plug Connection
Precise Positioning and Insertion: Align the direct plug SMA plug with the pre-designed mounting holes on the PCB. Insert gently and slowly, ensuring that each pin of the plug is precisely aligned with the mounting hole. Avoid applying excessive force during insertion to avoid bending the plug pins or damaging the mounting holes on the PCB.
Securely Secure the Pins: Use tweezers to carefully bend the plug pins slightly so that they fit snugly on the PCB. This ensures the plug remains stable and prevents any movement during soldering, ensuring a high-quality soldering process.
Precise Soldering: Preheat the soldering iron to 300°C-350°C. Apply a small amount of flux to the contact point between the pin and the PCB. Then, use solder wick to solder the pin to the PCB pad. During soldering, strictly control the time and temperature, keeping each pin soldering for 2-3 seconds to prevent cold solder joints, short circuits, or damage to the PCB due to excessive temperatures or prolonged soldering. After soldering is complete, trim any excess pins neatly with wire cutters.
2. Surface Mount Connection
Preheating and Soldering: Surface mount SMA connectors require soldering in a reflow oven. The preheat temperature should be controlled between 150°C and 200°C to ensure the solder fully melts and forms a good connection. Avoid overheating during soldering to prevent damage to the connector or PCB.
Electrical
|
Impedance |
50Ω |
|
Frequency Range |
0-6GHz |
|
Working Voltage |
≤335V |
|
VSWR |
≤1.2 |
|
Insulation Resistance |
≥1000mΩ |
|
Withstanding Voltage |
750V |
|
Center Contact Resistance(mΩ) |
≤5 |
|
Outer Contact Resistance(mΩ) |
≤2.5 |
|
Durability |
500 cycles |
Material and Plating
| SMA-KE SMT |
Material |
Plating |
|
Body |
Brass |
Gold |
|
Center conductor |
Brass |
Gold |
|
Crimp Ferrule |
Brass |
Gold |
|
Insulator |
PTFE |
Environmental
|
Temperature Range |
-40℃ ~ +125℃ |
|
Humidity |
＜95％ |
|
Salt-fog Test |
48h |
Zhenjiang Tongda Electronics Co., Ltd. is a professional manufacturer of SMA female PCB connector, providing you with products suitable for you.
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