RSmUFLf – U.FL Female to RP-SMA Male RF Adapter

The RSmUFLf is a precision adapter designed to interface devices with a U.FL Male RF port to antennas or RF cables terminated with RP-SMA Female connectors. It is engineered for compact RF environments where space constraints, signal integrity, and mechanical reliability are critical.

Designed for professional RF installations, the RSmUFLf maintains a 50 Ohm characteristic impedance with low insertion loss, making it suitable for WiFi, LTE, GPS, and IoT applications in embedded systems, access points, routers, and industrial wireless equipment.

This adapter features a U.FL Female connector on one end and an RP-SMA Male connector on the other.

• The U.FL Female interface mates with a U.FL Male RF port, commonly found on embedded radio modules and wireless boards.

• The RP-SMA Male connector must be connected to an RP-SMA Female antenna or RF cable.

Key Features

• U.FL Female to RP-SMA Male RF adapter

• 50 Ohm characteristic impedance

• Compact, low-profile form factor

• Designed for permanent or semi-permanent installations

• Low insertion loss and stable VSWR

• Suitable for high-frequency RF applications

• Professional-grade RF construction

Technical Specifications

• Connector A: U.FL Female

• Connector B: RP-SMA Male

• Impedance: 50 Ohms

• Interface Type: RF coaxial adapter

• Mounting Style: Inline adapter

• Body Material: RF-grade metal alloy

• Plating: Gold-plated contacts (typical)

• Operating Temperature: -40°C to +85°C (typical)

Frequency / Performance

• Frequency Range: DC to 6 GHz (typical for U.FL interfaces)

• VSWR: ≤ 1.3:1 (typical)

• Insertion Loss: Minimal, application-dependent

• Power Handling: Limited by U.FL interface specifications

Typical Applications

• WiFi and Bluetooth modules

• LTE / 4G / 5G embedded modems

• GPS and GNSS receivers

• IoT gateways and industrial controllers

• RF prototyping and system integration

• Internal antenna-to-module transitions

Frequently Asked Questions

Q: Is this adapter a cable or a solid RF adapter?
A: This is a solid inline RF adapter, not a coaxial cable assembly.

Q: Can this adapter be used for LTE and 5G applications?
A: Yes, within the frequency and power limits of the U.FL interface.

Q: Is this adapter suitable for outdoor use?
A: No. This adapter is intended for indoor or protected enclosures only.