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. 532-4367
Mfr. Part No.ER400TS-02
BrandEasy Radio
£19.32
Each
Units
Module - 433MHz FSK 38.4kbit/s +10dBm - - RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85 °C
RS Stock No. 126-2176
Mfr. Part No.RFID-A1 (00319)
£20.84
Each
Units
Module - - - - - - - I2C, SPI 2.5 → 3.6V - - 20.32mm +85 °C
RS Stock No. 793-2024
Mfr. Part No.RFM68W-868-S2
BrandHopeRF
£5.75
Each
Units
Module - 868MHz FSK, OOK 100kbit/s +10dBm - - TWI 1.8 → 3.7V 15 x 14.5 x 1mm 1.7mm 15mm +70 °C
RS Stock No. 532-4373
Mfr. Part No.ER400RS-02
BrandEasy Radio
£24.32
Each
Units
Module - 433MHz FSK 38.4kbit/s +10dBm - -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85 °C
RS Stock No. 162-8691
Mfr. Part No.RF430CL330HCPWR
£0.481
Each (On a Reel of 2000)
Units
Transponder - - - - - - - SPI 3 → 3.6V 4.5 x 5.1 x 1.05mm 1.05mm 5.1mm +85 °C
RS Stock No. 125-1256
Mfr. Part No.RFM119W-433S1
£4.90
Each
Units
Module - 433MHz FSK - +13dBm - - 2-Wire 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85 °C
RS Stock No. 125-1257
Mfr. Part No.RFM119W-868S1
£3.58
Each
Units
Module - 868MHz FSK - +13dBm - - 2-Wire 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85 °C
RS Stock No. 786-3186
Mfr. Part No.ESK 300
BrandEnOcean
£117.06
Each
Units
Module - 868MHz - 125kbit/s +3dBm - - USB - - - - +65 °C
RS Stock No. 825-3344
Mfr. Part No.RF430CL330HCPWR
£1.17
Each (In a Pack of 5)
Units
Transponder - - - - - - - SPI 3 → 3.6V 4.5 x 5.1 x 1.05mm 1.05mm 5.1mm +85 °C
RS Stock No. 860-7233
Mfr. Part No.AM-RRQ3-433P
£8.47
Each
Units
Module - 433.92MHz AM 4.8kbit/s - - -108dBm - 3.3 → 8V 6 x 38.1 x 14.5mm 14.5mm 38.1mm +85 °C
RS Stock No. 793-4405
Mfr. Part No.T9-434-225
£24.88
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. 908-4161
Mfr. Part No.UG96LATEA-128-STD
BrandQuectel
£44.53
Each
Units
Module - - - - - - - I2C, NETLIGHT, PCM, UART - 22.5 x 26.5 x 2.2mm 2.2mm 22.5mm +85 °C
RS Stock No. 133-715
Mfr. Part No.LC-TX458E-R
BrandLPRS
£47.43
Each
Units
Module - 458MHz - - - - - - - - - - -
RS Stock No. 146-0765
Mfr. Part No.UG96LATEA-128-STD
BrandQuectel
£42.056
Each (In a Box of 10)
Units
Module - - - - - - - I2C, NETLIGHT, PCM, UART - 22.5 x 26.5 x 2.2mm 2.2mm 22.5mm +85 °C
RS Stock No. 825-3353
Mfr. Part No.RF-HDT-DVBE-N2
£1.824
Each (In a Pack of 5)
Units
Transponder - - - - - - - - - - 3mm - +90 °C
RS Stock No. 921-3016
Mfr. Part No.RF-HDT-DVBE-N2
£0.892
Each (On a Reel of 1000)
Units
Transponder - - - - - - - - - - 3mm - +90 °C
RS Stock No. 906-2732
Mfr. Part No.XB8-DMRS-002
£21.20
Each
Units
Module - 863 → 870MHz - 80kbit/s 25mW - -101dBm - 2.7 → 3.6V 33.8 x 22.1 x 3mm 3mm 33.8mm +85 °C
RS Stock No. 172-9310
Mfr. Part No.XB8-DMRS-002
£20.57
Each (In a Tray of 36)
Units
Module - 863 → 870MHz - 80kbit/s 25mW - -101dBm - 2.7 → 3.6V 33.8 x 22.1 x 3mm 3mm 33.8mm +85 °C
RS Stock No. 783-9669
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
£77.12
Each
Units
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C
RS Stock No. 172-2311
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
£90.11
Each (In a Tray of 20)
Units
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C