Product Specification

Upgrade Your Connectivity with the RF Coaxial Connector SMA-KFD278 by HUADA

Experience unparalleled performance and reliability with our premium SMA-KFD278 RF Coaxial Connector. Featuring a robust 50Ω impedance, this connector ensures pristine signal transmission across a wide frequency range (0-12.4GHz for flexible cable and 0-18GHz for semi-rigid).
Engineered with exceptional durability, the SMA-KFD278 offers 500 mating cycles and withstands extreme operating temperatures from -65°C to +165°C. Its high insulation resistance (5000 MΩ) and dielectric withstanding voltage (1000 V) provide superior protection against electrical hazards.
Whether you're working with flexible or semi-rigid cables, the SMA-KFD278 RF Coaxial Connector delivers unparalleled VSWR performance (1.15+0.02F for flexible cable and 1.10+0.02F for semi-rigid). Enhance your RF transmissions today with this superior connector designed for demanding applications.

Key Features of the SMA-KFD278 HUADA Coaxial Connector

Frequency Range: The SMA-KFD278 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-KFD278 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-KFD278 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-KFD278 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-KFD278 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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