SKU: IOWC-0799
📋 GST Invoice Available

15cm RP-SMA Female to IPEX4 Cable RG0.81

₹107.00 (Inclusive of all taxes)
Out of Stock

This 15cm RG0.81 coaxial pigtail cable provides a reliable 50-ohm impedance link between an RP-SMA female port and an IPEX4 (U.FL) connector, essential for connecting compact wireless modules to external antennas with minimal signal loss.

Features

  • RP-SMA Female to IPEX4 (U.FL) interface for connecting external antennas to compact module boards.
  • 15cm RG0.81 coaxial cable with 50-ohm impedance ensures stable RF signal transmission.
  • 11mm connector length provides a secure, low-profile connection for space-constrained designs.
  • Compatible with 5G, 4G, Wi-Fi, Bluetooth, LoRa, and GNSS modules requiring an IPEX4 antenna port.
  • Essential accessory for prototyping and final installations to improve wireless range and reliability.

Out of stock

Description

This RP-SMA female to IPEX4 connector cable is a critical RF interconnect for IoT and wireless communication projects. The RG0.81 coaxial construction maintains a consistent 50-ohm impedance over its 15cm length, minimizing VSWR and signal reflection to preserve link budget and data integrity. The reverse-polarity SMA connector mates with standard RP-SMA male antenna interfaces, while the miniature IPEX4 (often branded as U.FL) plug connects directly to the ultra-compact antenna pads found on embedded Wi-Fi, Bluetooth, cellular, and LoRa modules.

Designed for low-loss performance across sub-GHz to 5GHz frequency bands, this pigtail enables developers to route antenna signals away from noisy PCB environments, directly improving reception sensitivity and transmit efficiency. Its flexible cable and precise 11mm connector length allow for clean integration into enclosures, drones, trackers, and gateway devices where reliable wireless connectivity is paramount.

Key Features

  • Provides a direct, impedance-matched bridge between external RP-SMA antennas and internal IPEX4 module ports.
  • RG0.81 coaxial cable offers a balance of flexibility and RF shielding for stable performance.
  • Reverse Polarity SMA (RP-SMA) female connector ensures compatibility with common Wi-Fi and cellular antennas.
  • IPEX4 (U.FL) male connector is the industry-standard for compact, board-mounted RF interfaces.
  • Low VSWR design minimizes signal loss and reflection for optimal RF power transfer.
  • Essential for upgrading onboard antenna performance with higher-gain external antennas.
  • Enables modular antenna swapping for testing and optimizing wireless range.
  • Ideal for prototyping benches and final product integration requiring a reliable RF path.

Applications

  • Connecting external RP-SMA antennas to ESP32, ESP8266, nRF52840, or SIMCom cellular development boards.
  • Extending antenna placement in IoT gateways, routers, and wireless sensor nodes for better signal reception.
  • Providing a test interface for RF performance validation and antenna swapping during development.
  • Integrating into final product assemblies where the main PCB uses an IPEX4 antenna connector.
  • Enabling the use of directional or high-gain antennas with compact LoRaWAN or BLE tracking devices.

Technical Specifications

Cable TypeRG0.81 Coaxial
Impedance50 Ohm (Typical)
Cable Length15 cm
Connector 1RP-SMA Female
Connector 2IPEX4 (U.FL) Male
Connector Length11 mm
Frequency RangeCompatible with Sub-GHz to 5+ GHz
Primary UseRF Antenna Pigtail / Interconnect Cable
CompatibilityWi-Fi, Bluetooth, 4G/5G, LoRa, GNSS Modules

Frequently Asked Questions

What modules is this RP-SMA to IPEX4 cable compatible with?

This cable is directly compatible with any wireless module featuring a female IPEX4 (U.FL) antenna pad. This includes common Wi-Fi/Bluetooth SoCs like the ESP32-S3, ESP8266, and nRF52840, as well as cellular modules (SIM7600G, SIM7000G), LoRa transceivers (SX1276, SX1262), and GNSS receivers. The RP-SMA female end connects to standard RP-SMA male antennas, allowing you to use external antennas for improved range.

How do I properly install and secure the IPEX4 connector?

Align the IPEX4 connector squarely with the module's female socket. Gently press down until a faint click is heard or felt, indicating the locking clip has engaged. Do not pull on the cable to seat it. To disconnect, use a spudger or small flat tool to gently lift the metal locking clip on the connector's side before pulling straight up. Avoid lateral force to prevent damaging the delicate PCB socket. For strain relief, secure the cable near the connector using adhesive clips or cable ties.

What is the significance of the RG0.81 cable specification?

RG0.81 refers to the coaxial cable's diameter and construction, which dictates its flexibility, loss per meter, and power handling. This specific type offers a good balance for short runs (like this 15cm pigtail), providing adequate shielding with moderate flexibility for routing inside enclosures. It is typically rated for 50-ohm impedance, which matches the standard for Wi-Fi, cellular, and LoRa systems, ensuring minimal signal reflection (low VSWR) and efficient power transfer between your module and antenna.

Package Includes

  • 1 x 15cm RP-SMA Female to IPEX4 Connector Cable (RG0.81)

Additional Information

Weight 0.006 kg