Product Specification

Connect with Confidence: HUADA RF Coaxial Connector SMA-KFD290 for Demanding Applications

Experience exceptional signal transmission with our advanced RF Coaxial Connector SMA-KFD290. Engineered with precision, this connector boasts an impedance of 50Ω and a wide operating temperature range of -65°C to +165°C, ensuring seamless performance in harsh environments. Its rugged construction withstands up to 500 mating cycles, delivering unwavering reliability for mission-critical connections.

The SMA-KFD290 excels in applications with flexible cables, supporting a frequency range of 0~12.4GHz. When used with semi-rigid cables, it extends the frequency range to a remarkable 0~18GHz. Its low VSWR values ​​of 1.15+0.02F for flexible cables and 1.10+0.02F for semi-rigid cables ensure minimal signal loss and maximum transmission efficiency.

Built to meet industry standards, the SMA-KFD290 guarantees exceptional insulation resistance of 5000 MΩ and a dielectric withstanding voltage of 1000 V. Its robust design and superior materials ensure optimal performance and longevity in demanding environments.

Key Features of the SMA-KFD290 HUADA Coaxial Connector

Frequency Range: The SMA-KFD290 operates seamlessly across a wide frequency spectrum, spanning from DC (direct current) up to an impressive 18 GHz. Whether you’re dealing with low-frequency signals or high-speed data, this connector has you covered.
Operating Temperature Range: Designed to withstand extreme conditions, the SMA-KFD290 can brave temperatures as low as -55°C and as high as +165°C. From frigid mountaintops to scorching industrial environments, it maintains its performance and reliability.
Pin Diameter: The connector’s pin diameter measures a precise 0.30 mm, ensuring optimal signal transmission and minimal losses. Precision matters, especially in critical applications.
Voltage Rating (Dielectric Withstanding Voltage): With a robust dielectric design, the SMA-KFD290 can handle up to 500 Vrms (root mean square voltage). This insulation capability prevents electrical breakdown and ensures safe operation.
VSWR (Voltage Standing Wave Ratio): The VSWR of 1.15:1 indicates excellent impedance matching. Lower VSWR values mean less signal reflection and better overall performance.
Insulator Material: The SMA-KFD290 uses either PTFE (polytetrafluoroethylene) or LCP (liquid crystal polymer) as the insulator material. Both options offer low loss and high-temperature stability, making them ideal for RF applications.
Seal Ring: The connector features a silicon rubber seal ring, ensuring reliable sealing and preventing moisture ingress.
Contact Resistance: The center contact has a maximum resistance of 3 mΩ, while the outer contact maintains a resistance of ≤ 2 mΩ. Low contact resistance ensures efficient signal transfer.
Durability: The SMA-KFD290 withstands 500 mating cycles, making it durable for repeated connections and disconnections.
Insulation Resistance: The insulation resistance exceeds 5000 MΩ, ensuring minimal leakage and reliable isolation between conductors.
Body Material and Finish: The connector’s body and other metal parts are made of stainless steel with a passivated finish. This combination ensures longevity and corrosion resistance.

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