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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Viewing 121 - 140 of 160 products
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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. 206-9153
Mfr. Part No.EC25EFA-512-STD
BrandQuectel
SGD122.44
Each
units
- - B1/B3/B5/B7/B8/B20 B38/B40/B41MHz - - - - - USB 2.0 - - - - -
RS Stock No. 189-0322
Mfr. Part No.N24RF16DWPT3G
SGD2.928
Each (In a Pack of 5)
units
Module - - - - - - - I2C 1.8 → 5.5V 5 x 4 x 1.5mm 1.5mm 5mm +105 °C
RS Stock No. 187-1857
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
SGD9.685
Each (In a Pack of 2)
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. 793-4405
Mfr. Part No.T9-434-225
SGD34.76
Each
units
Module - 434MHz FM 57kbit/s +13dBm - -121dBm Serial 2.2 → 12V 3 x 31.5 x 10.5mm 10.5mm 31.5mm +55 °C
RS Stock No. 153-3388
Mfr. Part No.LTC5505-1ES5#TRMPBF
SGD3.052
Each (On a Reel of 500)
units
Controller - - - - - Surface Mount - - - 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm +85 °C
RS Stock No. 177-4869
Mfr. Part No.ERA900TS
BrandLPRS
SGD38.72
Each (In a Tray of 50)
units
Module - 868 MHz, 915MHz ASK, FSK, GFSK 38400bit/s +10dBm - -117dBm RS232, UART 2.5 → 5.5V 31 x 4 x 12mm 12mm 31mm +85 °C
RS Stock No. 177-4867
Mfr. Part No.ERA400TRS
BrandLPRS
SGD39.698
Each (In a Tray of 50)
units
Module - 433MHz ASK, FSK, GFSK 115.2kbit/s +10dBm - -117dBm RS232, UART 2.5 → 5.5V 38 x 4 x 14mm 14mm 38mm +85 °C
RS Stock No. 189-0489
Mfr. Part No.N24RF04DWPT3G
SGD2.764
Each (In a Pack of 5)
units
Module - - - - - - - I2C 1.8 → 5.5V 5 x 4 x 1.5mm 1.5mm 5mm +105 °C
RS Stock No. 672-9016
Mfr. Part No.SMARTALPHA-RX868
SGD28.41
Each
units
Module - 868MHz GFSK 86.2kbit/s 0dBm - -110dBm USB 2.3 → 3.6V - - 23.7mm +80 °C
RS Stock No. 818-4910
Mfr. Part No.TRF7960ARHBT
SGD7.31
Each
units
Module - - ASK, OOK - - Surface Mount - - - 5.15 x 5.15 x 0.95mm 0.95mm 5.15mm +110 °C
RS Stock No. 762-0121
Mfr. Part No.ZULUEVAL-T
SGD204.83
Each
units
Module - 868MHz FSK 256kbit/s +20dBm - -116dBm - 2.2 → 3.6V 11 x 25 x 1mm 1mm 25mm +85 °C
RS Stock No. 781-3061
Mfr. Part No.28340
SGD77.69
Each
units
Reader - - - - - - - USB - - - - -
RS Stock No. 793-2005
Mfr. Part No.RFM64W-433S2
BrandHopeRF
SGD13.61
Each
units
Module - 433MHz FSK, OOK 150kbit/s +10dBm - -110dBm SPI 1.8 → 3.6V 19.7 x 16 x 1mm 1.9mm 19.7mm +70 °C
RS Stock No. 783-9631
Mfr. Part No.ERA900TS
BrandLPRS
SGD38.72
Each
units
Module - 868 MHz, 915MHz ASK, FSK, GFSK 38400bit/s +10dBm - -117dBm RS232, UART 2.5 → 5.5V 31 x 4 x 12mm 12mm 31mm +85 °C
RS Stock No. 505-6799
Mfr. Part No.R7G-434.525
SGD56.80
Each
units
Module - 434MHz FM 20kbit/s - - -117dBm - 4.5 → 5.5V 48 x 8.3 x 17mm 17mm 48mm +55 °C
RS Stock No. 731-2735
Mfr. Part No.RFM31B-868-D
BrandHopeRF
SGD14.02
Each
units
Module - 868MHz FSK, GFSK, OOK 256kbit/s - - -121dBm SPI 1.8 → 3.6V 14 x 15.5 x 5.9mm 5.9mm 15.5mm +85 °C
New
RS Stock No. 213-1336
Mfr. Part No.RockBlock FTDI Kit
BrandRock 7
SGD353.50
Each
units
- - - - 270 → 340bps - - - UART 5V 76.0 x 51.5 x 19.0mm 76mm 51.5mm 85 °C
RS Stock No. 150-3924
Mfr. Part No.A001-0052-002
BrandWEPTECH
SGD16.674
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. 731-2732
Mfr. Part No.RFM22B-868-S1
BrandHopeRF
SGD18.98
Each
units
Module - 868MHz FSK, GFSK, OOK 256kbit/s +20dBm - -121dBm SPI 1.8 → 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85 °C
RS Stock No. 146-5906
Mfr. Part No.Lazurite 920J
BrandLapis
SGD59.69
1 Box of 1
Box(es)
- Xbee Shield 920MHz - 100kbit/s - - - - 15V dc - - - -