RF Modules

An RF module, also commonly referred to as a radio frequency module, is a small electronic device that is used to transmit and receive radio signals between two devices, and is also used in embedded systems to facilitate wireless communication connections. RS Components offer a varied range of RF modules from several brands across the industry, including Eccel Technology, ON Semiconductor, RF Solutions, Wurth Elektronik, and many more.

What is the main function of an RF module?

Radio frequency modules are the biggest facilitator of wireless communication, this is because it does not require a line of sight. This is in contrast to its usual alternative, Infrared, which mostly operates in line of sight mode. It spans between a range of 3 kHz and 300 GHz, with the lower end being applied in applications such as submarines and radio stations whilst the higher spectrum is used in applications such as GPS, Wi-Fi, Bluetooth and TV broadcasting. An RF module is typically used with a pair of encoder/decoders. The encoder is used for encoding parallel data for transmitting whilst the reception is decoded by a decoder. Some of the main functions of an RF Module are:

  • Act as a transmitter of signals
  • A solution for detecting radio signals
  • Bridging communication between two devices
  • RF can stretch communication between applications
  • Acts as a receiver module

The performance of radio frequency applications is dependent on a few factors. Through increasing a transmitter’s power, a larger communication range can be attained. This also causes a power drain from the power source which could result in a shorter life span for battery-powered devices. Through the use of higher transmitted power, interference with other radio frequencies can occur.

Typical applications of an RF module

  • Car alarm systems
  • Remote controls
  • Sensor reporting
  • Automation systems

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Description Price Component Type Module Type Supported Frequency Bands Modulation Technique Maximum RF Data Rate Maximum Output Power Mounting Type Receiver Sensitivity Supported Bus Interfaces Supply Voltage Dimensions Height Length Maximum Operating Temperature
RS Stock No. 205-9972
Mfr. Part No.2609026291001
£90.80
Each
Units
- RF Module 915MHz FM 400kbps 14dBm - - - 3.6V - - - -
RS Stock No. 205-9958
Mfr. Part No.2606031121000
£21.197
Each (On a Reel of 400)
Units
- RF Module 2.4GHz - 500kbps 0dBm - - - 3.6V - - - -
RS Stock No. 206-9151
Mfr. Part No.EC21EFA-MINIPCIE
BrandQuectel
£63.41
Each
Units
- - B1/B3/B5/B7/B8/B20MHz - - - - - USB 2.0 - - - - -
RS Stock No. 205-9935
Mfr. Part No.2605031141000
£25.22
Each
Units
- RF Module 434MHz - 100kbps 10dBm - - - 3.6V - - - -
RS Stock No. 205-9971
Mfr. Part No.2607056291011
£90.80
Each
Units
- RF Module 915MHz FM 38.4kbps 15dBm - - - 3.6V - - - -
RS Stock No. 187-1558
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
£4.43
Each (In a Tray of 429)
Units
Transceiver - 137 → 175 MHz, 410 → 525 MHz, 862 → 1020MHz - 12Mbit/s 20dBm - -148dBm USB 1.8 → 3.6V - - 6mm +85 °C
RS Stock No. 206-9150
Mfr. Part No.EC21EFA-512-STD
BrandQuectel
£55.91
Each
Units
- - B1/B3/B5/B7/B8/B20MHz - - - - - USB 2.0 - - - - -
RS Stock No. 150-3927
Mfr. Part No.A001-0052-002
BrandWEPTECH
£17.12
Each
Units
Module - 2.36 → 2.48GHz - - - - - FTDI USB, I2C, RS232, SPI, USB 3.3V 19 x 14 x 2.5mm 2.5mm 19mm -
RS Stock No. 206-9149
Mfr. Part No.BG96MA-MINIPCIE-S
BrandQuectel
£37.50
Each
Units
- - B1/ B2/ B3/ B4/ B5/ B8/ B12/ B13/ B18/B19/ B20/ B25?/ B26*/ B28 B39 (for Cat M1 only) EGPRS: 850/900/1800/1900 MHz MHz, BeiDou/Compass MHz, Galileo MHz, GLONASS MHz, GNSS GPS MHz, QZSS MHz - - - - - UART, USB - - - - -
RS Stock No. 200-7273
Mfr. Part No.NC2400C
BrandNeoCortec
£9.36
Each
Units
Module - 2.4GHz - - - - - - 3.6V 18 x 11 x 2.6mm 2.6mm 18mm -
RS Stock No. 150-3924
Mfr. Part No.A001-0052-002
BrandWEPTECH
£9.329
Each (In a Tray of 50)
Units
Module - 2.36 → 2.48GHz - - - - - FTDI USB, I2C, RS232, SPI, USB 3.3V 19 x 14 x 2.5mm 2.5mm 19mm -
RS Stock No. 200-7272
Mfr. Part No.NC1000C-9
BrandNeoCortec
£9.74
Each
Units
Module - 915MHz - - 10dBm - -93dBm - 3.6V 18 x 11 x 2.6mm 2.6mm 18mm -