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SMA Connectors Have The Characteristics Of Frequency Bands


The SMA connector is a widely used coaxial connector with a small thread connection, which has a wide bandwidth and excellent performance. SMA connectors are suitable for use in radio frequency circuits for microwave equipment and digital communication systems to connect RF cables or microstrip lines.

SMA connectors are suitable for applications in the frequency range DC to 26.5GHz microwave. Applications such as telecommunications, networking, SMA Connector wireless communications, and inspection and measurement instruments. It has a frequency bandwidth, excellent performance, high reliability, SMA Connector long life characteristics.

SMA connector of the main technical indicators

Temperature range: Temp.range -65 ~ + 165 ° C (PE Cable -40 ~ + 85 ° C)

SMA Connector Vibration: Vibration MIL-STD-202, Method 213

Characteristic Impedance: Impedance 50Ω

SMA Connector Frequency range: Frequency Range DC ~ 12.4GHz (half just cable 0 ~ 18GHz)

Operating voltage: Working Voltage 335V max (RMS)

Pressure: Withstand Voltage 1000V rms (sea level minimum)

SMA Connector Contact resistance: Contact resistance

Between the inner conductors: Center Contact ≤ 3 mΩ

Outside conductor: Outer Contact ≤ 2 mΩ

Insulation resistance: Insulation resistance ≥ 5000 MΩ

Insertion loss: ≤0.15 dB / 6GHz

Voltage Standing Wave Ratio: VSWR Straight: Straight

Soft cable ≤1.10 + 0.002f Semi-just cable ≤1.05 + 0.001f

SMA Connector Curved Right angle Soft cable ≤1.20 + 0.003f Semi-just cable ≤1.10 + 0.001f

Durability: Dating (mating) ≥ 500 times (cycles)

Materials and Coatings

Shell brass brass

Pinned brass brass

Jack beryllium bronze beryllium

Elastic contact beryllium bronze beryllium

Insulator insulator Teflon PTFE

Crimp ferrule copper alloy nickel or gold plated

o - Sealant o - ring sealing silicone rubber


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