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Engineered for compact embedded systems, industrial IoT modules, and high-density RF panels, this ultra-thin RG316 pigtail cable delivers reliable 50Ω signal transmission from a panel-mounted SMA female bulkhead to an internal SMB female (jack) interface — eliminating the need for awkward adapters and reducing signal loss in space-constrained designs.
Packaging and delivery
| Selling Units | Single item |
| Single package size | 22X15X3 cm |
| Single gross weight | 0.200 kg |
Lead time
| Quantity (pieces) | Lead time (days) |
| 1 - 1000 | 10 |
| 1001 - 5000 | 15 |
| 5001 - 10000 | 25 |
| > 10000 | To be negotiated |
Price
| 20 - 499 pieces | US$1.98 |
| 500 - 999 pieces | US$1.85 |
| 1000 - 4999 pieces | US$1.50 |
| >= 5000 pieces | US$1.15 |
Feature | Specification |
Connector 1 | SMA Female Jack Bulkhead — Threaded, panel-mount, with washer and 1/4"-36UNS hex nut for secure chassis installation |
Connector 2 | SMB Female (Jack) — Push-on, no-tool locking, compatible with SMB male (plug) terminations |
Gender Pairing | Female (bulkhead) → Female (jack) — Designed to connect to an external SMA male cable and internal SMB male PCB header |
Cable Type | RG316 — 50Ω, double-shielded, flexible, low-profile coaxial cable |
Outer Diameter | 1.6 mm (0.063") — Ideal for tight routing in PCB enclosures, wearables, and embedded modules |
Shielding | 95% tinned copper braid + aluminum foil — >60 dB attenuation at 4 GHz |
Max Frequency | 4 GHz — Optimized for LTE, Wi-Fi 6, GPS, and industrial wireless sensors |
Note: SMB female (jack) is the receptacle — it accepts SMB male (plug) connectors. This is the industry-standard configuration for internal board-to-panel RF links.
Parameter | Value |
Impedance | 50 Ω ±3% |
Velocity of Propagation | 69% |
Capacitance | 96 pF/m |
Attenuation (Typical) | 0.86 dB/m @ 1 GHz |
Shielding Effectiveness | >60 dB @ 4 GHz |
Jacket Material | FEP (Fluorinated Ethylene Propylene) — Flame-retardant, chemical-resistant, wide temp tolerance |
Operating Temperature | -65°C to +200°C — Suitable for automotive, industrial, and aerospace environments |
Min Bend Radius | 13 mm — Maintains signal integrity under repeated flexing |
Dielectric Strength | 200 V AC |
Insulation Resistance | ≥500 MΩ·km |
RG316 is 40% thinner than RG174 and offers superior thermal stability — perfect for high-temperature enclosures and densely packed PCBs.
Eliminate Adapter Cascades — Direct SMA-to-SMB connection removes 2–3 dB of cumulative loss from multiple adapters
Panel-Mount Ready — SMA bulkhead jack screws securely into device chassis, creating a sealed, vibration-resistant entry point
Internal Board Integration — SMB female jack connects seamlessly to standard SMB male headers on RF modules, GPS units, or LTE transceivers
Space-Saving Profile — 1.6mm cable diameter enables routing in tight spaces where SMA or RG174 cables won’t fit
High-Temp Resilience — FEP jacket survives solder reflow, engine bays, and industrial ovens — unlike PVC or PE jackets
No Tools Required — SMB push-on coupling enables rapid assembly and field service without wrenches or torque tools
RoHS & REACH Compliant — Certified for global compliance in consumer electronics, medical, and industrial markets
Low PIM Design — Gold-plated contacts and clean impedance transitions ensure minimal intermodulation distortion in multi-carrier systems
Ideal for replacing proprietary OEM pigtails in Huawei 4G modules, Quectel EC25, Telit LE910, and Arduino/Raspberry Pi RF shields with SMB headers.
Industrial IoT Gateways — Connect external SMA antenna to internal SMB RF module on a metal enclosure
5G Small Cell Base Stations — Panel-mounted SMA input → internal SMB-connected PA/PAU board
GPS & GNSS Receivers — Ruggedized SMA bulkhead entry → SMB header on compact receiver PCB
Medical Telemetry Devices — Low-profile, high-reliability RF link in portable diagnostic units
Automotive Telematics — Withstands under-hood temperatures and vibration in fleet tracking systems
R&D Prototyping — Rapidly prototype RF interfaces without soldering or custom PCB traces
Wireless Sensor Networks — Enables external antenna access in sealed, battery-powered nodes
Avoid using this cable for frequencies above 4 GHz — use RG174 with SMA-to-SSMC for 12+ GHz applications.
Standard Stock: 5cm, 10cm, 15cm, 20cm lengths — pre-tested with S11/S21 data
Custom Options:
Cable Length: 3cm to 50cm (incremental 1cm steps)
Jacket Color: Black (standard), White, Red, Blue (for system ID)
Termination: Crimped or soldered, with optional heat-shrink strain relief
Bulkhead Mounting: Optional O-ring seal for IP67-rated enclosures
Packaging: Anti-static ESD bags, 10 pcs/box, QR-coded test reports included
MOQ: 5 pieces
Lead Time: 3–5 days standard | 7–10 days custom
Support: Full RF test reports (S-parameters), RoHS/REACH declarations, and application engineering support
Compatible with: Quectel EC25, Telit LE910, u-blox ZED-F9P, SparkFun RF modules, and any device with SMB male PCB header and external SMA antenna port. Not compatible with 75Ω systems or Fakra/NMO connectors.
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