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. 200-7273
Mfr. Part No.NC2400C
BrandNeoCortec
SGD16.59
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 206-9150
Mfr. Part No.EC21EFA-512-STD
BrandQuectel
SGD110.40
Each
units
- - B1/B3/B5/B7/B8/B20MHz - - - - - USB 2.0 - - - - -
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. 111-0160
Mfr. Part No.KAPPA-M868-SO
SGD29.03
Each
units
Module - 868MHz FM 57.6kbit/s +13dBm - -102dBm RS232 2.4 → 3.6V 31.5 x 11 x 2.5mm 2.5mm 31.5mm +85 °C
RS Stock No. 126-2181
Mfr. Part No.OEM-MICODE-USB (000128)
SGD89.35
Each
units
Reader - - - - - - - USB 5V - - 75mm -
RS Stock No. 505-6749
Mfr. Part No.R7G-434.075
SGD73.01
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. 146-5909
Mfr. Part No.Lazurite 920J
BrandLapis
SGD68.64
Each
units
Module - 920MHz - 100kbit/s - - - - 15V dc - - - -
New
RS Stock No. 206-9144
Mfr. Part No.BC95-GJB_02_STD
BrandQuectel
SGD24.00
Each
units
- - 700/ 800/ 850/ 900/ 1800/ 2100MHz - - - - - Serial - - - - -
New
RS Stock No. 206-9145
Mfr. Part No.BG95M3LA-64-SGNS
BrandQuectel
SGD45.11
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - USB 2.0 - - - - -
New
RS Stock No. 209-6123
Mfr. Part No.LT5534ESC6#TRMPBF
SGD17.49
Each
units
- - - - - - - - - - - - - -
RS Stock No. 189-0306
Mfr. Part No.N24RF04EDWPT3G
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. 126-2176
Mfr. Part No.RFID-A1 (00319)
SGD41.15
Each
units
Module - - - - - - - I2C, SPI 2.5 → 3.6V - - 20.32mm +85 °C
RS Stock No. 731-2779
Mfr. Part No.RFM02--868-S1
BrandHopeRF
SGD7.49
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
New
RS Stock No. 213-1335
Mfr. Part No.RockBLOCK 9603
BrandRock 7
SGD315.58
Each
units
- Transceiver - - 270 → 340bps - - - UART 5V 45.0 x 45.0 x 15.0mm 15mm 45mm 85 °C
New
RS Stock No. 211-0208
Mfr. Part No.6GT2600-3AA10
BrandSiemens
SGD135.628
Each (In a Pack of 10)
units
Transponder - - - - - - - - - - - - -
RS Stock No. 189-0222
Mfr. Part No.N24RF64EDWPT3G
SGD2.164
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. 189-0390
Mfr. Part No.N24RF64EDWPT3G
SGD3.304
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. 125-1247
Mfr. Part No.ZETAPLUS-868-D
SGD21.05
Each
units
Module - 868MHz FM 500kbit/s +13dBm - -116dBm Serial 1.8 → 3.6V 16 x 16.5 x 1mm 1mm 16.5mm +85 °C
New
RS Stock No. 209-6138
Mfr. Part No.LTC5507ES6#TRMPBF
SGD3.787
Each (On a Reel of 500)
units
- - - - - - - - - - - - - -
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