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. 666-6757
Mfr. Part No.ALPHA-TRX433S
TWD236.00
Each
units
Module - 433MHz FM 115.2kbit/s +25dBm - - SPI 2.2 → 3.8V 16.1 x 15.9 x 4.2mm 4.2mm 16.1mm +85 °C
RS Stock No. 672-9016
Mfr. Part No.SMARTALPHA-RX868
TWD617.00
Each
units
Module - 868MHz GFSK 86.2kbit/s 0dBm - -110dBm USB 2.3 → 3.6V - - 23.7mm +80 °C
RS Stock No. 786-3198
Mfr. Part No.PTM210
BrandEnOcean
TWD1,157.00
Each
units
Module - 868MHz ASK 125kbit/s +5dBm - - - - 40 x 40 x 11.2mm 11.2mm 40mm +65 °C
RS Stock No. 177-4868
Mfr. Part No.ERA400TS
BrandLPRS
TWD870.00
Each (In a Tray of 50)
units
Module - 433MHz 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. 762-0121
Mfr. Part No.ZULUEVAL-T
TWD4,537.00
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. 783-9628
Mfr. Part No.ERA400TS
BrandLPRS
TWD673.00
Each
units
Module - 433MHz 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. 206-9154
Mfr. Part No.EC25EFA-MINIPCIE
BrandQuectel
TWD3,145.00
Each
units
- - B1/B3/B5/B7/B8/B20 B38/B40/B41MHz - - - - - USB 2.0 - - - - -
RS Stock No. 206-9145
Mfr. Part No.BG95M3LA-64-SGNS
BrandQuectel
TWD999.00
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - USB 2.0 - - - - -
RS Stock No. 731-2732
Mfr. Part No.RFM22B-868-S1
BrandHopeRF
TWD412.00
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. 185-8750
Mfr. Part No.N24RF64DTPT3G
TWD95.50
Each (In a Pack of 2)
units
Module - - - - - - - I2C 1.8 → 5.5V 3.1 x 4.5 x 1.05mm 1.05mm 3.1mm +105 °C
RS Stock No. 505-6749
Mfr. Part No.R7G-434.075
TWD1,451.00
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. 187-1558
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
TWD182.50
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. 206-9159
Mfr. Part No.EM06ELA-512-SGAS
BrandQuectel
TWD4,998.00
Each
units
- - B1/B3/B5/B7/B8/B20/B28/B32/B38/B40/B41 x2CA B1+B1/B5/B8/B20/B28 MHz, B20+B32? MHz, B3+B3/B5/B7/B8/B20/B28 MHz, B38+B38 MHz, B40+B40 MHz, B41+B41 MHz, B7+B5/B7/B8/B20/B28 MHz - - - - - USB 2.0 - - - - -
RS Stock No. 189-0217
Mfr. Part No.N24RF04EDWPT3G
TWD39.90
Each (On a Reel of 3000)
units
Module - - - - - - - I2C 1.8 → 5.5V 5 x 4 x 1.5mm 1.5mm 5mm +105 °C
RS Stock No. 206-9165
Mfr. Part No.M95FA-TEA-03-STDN
BrandQuectel
TWD1,241.00
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - - - - - - -
RS Stock No. 731-2779
Mfr. Part No.RFM02--868-S1
BrandHopeRF
TWD166.00
Each
units
Module - 868MHz FSK 115.2kbit/s +8dBm - - SPI 2.2 → 5.4V 15.9 x 16.1 x 4.2mm 4.2mm 16.1mm +85 °C
RS Stock No. 206-9142
Mfr. Part No.BC66NB-04-STD
BrandQuectel
TWD523.00
Each
units
- - B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66/B71/B85MHz - - - - - Serial - - - - -
RS Stock No. 206-9155
Mfr. Part No.EC25EUXGA-128-SGNS
BrandQuectel
TWD2,236.00
Each
units
- - B1/B3/B7/B8/B20/B28A/B38/B40/B41MHz - - - - - USB 2.0 - - - - -
RS Stock No. 189-0489
Mfr. Part No.N24RF04DWPT3G
TWD79.40
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. 908-4161
Mfr. Part No.UG96LATEA-128-STD
BrandQuectel
TWD1,978.00
Each
units
Module - - - - - - - I2C, NETLIGHT, PCM, UART - 22.5 x 26.5 x 2.2mm 2.2mm 22.5mm +85 °C