High-Performance RF Coaxial Connector SMA-KHD20 by HUADA
Unlock Seamless Connectivity with the HUADA SMA-KHD20 RF Coaxial Connector
The SMA-KHD20 RF Coaxial Connector from HUADA ensures reliable signal transmission in demanding environments. With an impedance of 50Ω, it operates flawlessly across a wide temperature range (-65°C to +165°C). Its robust design withstands 500 mating cycles, making it ideal for industrial applications. The dielectric withstand voltage of 1000V ensures safety, while the VSWR (Voltage Standing Wave Ratio) remains low for both flexible and semi-rigid cables (0~12.4GHz and 0~18GHz, respectively). Elevate your connectivity solutions with the SMA-KHD20.
Key Features of the SMA-KHD20 HUADA Coaxial Connector
Frequency Range: The SMA-KHD20 operates seamlessly across a broad frequency spectrum, spanning from DC (direct current) up to an impressive 18.0 GHz (minimum). Whether you’re dealing with low-frequency signals or high-frequency applications, this connector has you covered.
Impedance (50Ω): The SMA-KHD20 maintains a consistent impedance of 50Ω. This standardized impedance ensures efficient signal transmission and compatibility with other RF components.
Insulation Resistance (≥ 5,000 MΩ): Safety and reliability are paramount. The SMA-KHD20 boasts impressive insulation resistance, exceeding 5,000 megohms. This high resistance prevents leakage and ensures optimal performance even in challenging environments.
Voltage Standing Wave Ratio (VSWR): The VSWR quantifies how efficiently a connector transmits power without reflecting it back. For the SMA-KHD20, the VSWR follows a simple formula: VSWR=1.02+0.005⋅f (GHz) , where f represents the frequency in gigahertz. Lower VSWR values indicate minimal signal loss and better performance.
Contact Resistance: The center contact resistance drop is ≤ 3.0 milliohms, while the outer contact resistance drop is ≤ 2.0 milliohms. These low resistance values ensure reliable electrical connections.
Dielectric Withstanding Voltage (1,000V rms): The SMA-KHD20 undergoes rigorous testing, withstanding 1,000 volts rms (root mean square) at sea level. This robust dielectric design guarantees safe operation under varying conditions.
RF High Potential Withstanding Voltage (760V rms at 5 MHz): Even when subjected to high voltage, the SMA-KHD20 maintains integrity. It can handle 760 volts rms at 5 MHz without compromising performance.
Connector Durability (500 Cycles): Designed for longevity, the SMA-KHD20 endures 500 insertions and withdrawals without mechanical failure. Whether in production lines or field installations, this connector remains reliable.
Mechanical Strength: The SMA-KHD20 exhibits high mechanical strength, making it suitable for demanding applications. It withstands physical stress, ensuring consistent performance over time.
Low-Voltage VSWR Optimization: At lower frequencies, the SMA-KHD20 minimizes reflection, enhancing signal quality and maintaining efficient communication.
Technical Features Table:
Impedance | 50Ω |
Minimum Operating Temperature | -65 °C |
Maximum Operating Temperature | +165 °C |
Mating Cycles | 500 |
Series | RF Coaxial Connector |
Insulation Resistance | 5000 MΩ |
dielectric withstanding voltage | 1000 V |
Frequency Range with Flexible Cable | 0~12.4GHz |
Frequency Range with Semi-rigid | 0~18GHz |
VSWR with Flexible Cable | 1.15+0.02F |
VSWR with semi-rigid | 1.10+0.02F |

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