Description
The SMA Male Straight Crimp Connector for RG178 is a sub-miniature RF interface designed for high-density applications where a secure, permanent cable attachment is required. Because RG178 is a very small-diameter flexible cable, this connector utilizes a hex-crimp termination method. This involves sliding a ferrule over the cable’s braided shield and using a specialized crimping tool to create a 360-degree mechanical bond, ensuring maximum pull-strength and electrical grounding.
Constructed with a gold-plated brass body and a Teflon (PTFE) insulator, this connector maintains a strict 50 Ohm impedance and superior signal integrity from DC up to 18 GHz (depending on the specific grade). The threaded coupling mechanism provides a secure, low-loss connection with all standard SMA female jacks, making it a staple in WiFi antennas, FPV drones, and laboratory test equipment.
Key Technical Advantages
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High-Strength Crimp Termination: The hex-crimp ferrule provides a rugged, permanent attachment that resists physical strain and vibration.
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Superior Signal Integrity: Precision-machined to ensure a consistent 50 Ohm match, minimizing VSWR and insertion loss in high-frequency paths.
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Enhanced EMI/RFI Shielding: The 360-degree crimp provides excellent shielding effectiveness (typically = -90 dB), preventing signal leakage.
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Corrosion Resistance: The high-purity gold plating protects the connector from oxidation and ensures reliable conductivity over its long operational life.
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Industrial Durability: Rated for at least 500 mating cycles, maintaining stable electrical contact throughout frequent connections.
Key Features
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Connector Type: SMA Male (Plug) with standard 1/4-36 threads and male center pin.
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Cable Compatibility: Specifically designed for RG178, RG196, and 1.13mm micro-coaxial cables.
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Premium Insulation: Features a PTFE (Teflon) dielectric for high thermal stability and low signal attenuation.
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Broad Frequency Range: Reliably supports applications across DC to 12.4 GHz (Standard) or up to 18 GHz (Precision).
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Compact Footprint: Lightweight and small-profile design ideal for portable devices and tight enclosures.
Technical Summary
| Parameter | Specification |
| Frequency Range | DC ~ 12.4 GHz (up to 18 GHz) |
| Impedance | 50 O |
| Body Material | Gold-Plated Brass |
| Insulator | PTFE (Teflon) |
| Termination Style | Hex Crimp (Ferrule) |
| Mating Cycles | >500 Cycles |
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