Our Precision SMA to BNC RF Adapter series extends standard interface capabilities up to 18 GHz, overcoming the traditional frequency limitations of conventional BNC connectors. Designed with high-grade passivated stainless steel and optimized internal impedance geometry, this adapter provides ultra-low VSWR, minimal insertion loss, and outstanding phase stability.
Ideal for lab test benches, defense electronics, telecommunications infrastructure, and high-frequency RF systems requiring seamless transitions between SMA and BNC interfaces without compromising signal integrity.
| Parameter | Specification |
| Frequency Range | DC to 18 GHz |
| Impedance | 50 Ω |
| VSWR | ≤ 1.25:1 (DC –18 GHz) |
| Insertion Loss | ≤ 0.05 × √f(GHz) dB |
| Dielectric Withstanding Voltage | 1,000 V RMS at sea level |
| Insulation Resistance | ≥ 5,000 MΩ |
| Durability (Mating Cycles) | ≥ 500 cycles |
| Operating Temperature | -55°C to +125°C |
| Body Material / Finish | Passivated Stainless Steel (SUS303) |
| Center Contact | Beryllium Copper (CuBe), Gold Plated (MIL-G-45204) |
| Insulator / Dielectric | High-performance PTFE / PEI (Ultem) |
| Model / Part Number | Interface 1 | Interface 2 | Max Freq | Body Style |
| TWC-SMBF-18G | SMA Male (Plug) | BNC Female (Jack) | 18 GHz | Straight |
| TWC-SFBM-18G | SMA Female (Jack) | BNC Male (Plug) | 18 GHz | Straight |
| TWC-SMBM-18G | SMA Male (Plug) | BNC Male (Plug) | 18 GHz | Straight |
| TWC-SFBF-18G | SMA Female (Jack) | BNC Female (Jack) | 18 GHz | Straight |
