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. 908-4139
Mfr. Part No.M66FA-04-STD
BrandQuectel
£13.04
Each
Units
Module - 850,900,1800,1900MHz - - - - - ADC, PCM, RTC, UART - 17.7 x 15.8 x 2.3mm 2.3mm 17.7mm +85 °C
RS Stock No. 170-9183
Mfr. Part No.M66FA-04-STD
BrandQuectel
£11.97
Each (In a Box of 25)
Units
Module - 850, 900, 1800, 1900MHz - - - - - ADC, PCM, RTC, UART - 17.7 x 15.8 x 2.3mm 2.3mm 17.7mm +85 °C
RS Stock No. 170-9181
Mfr. Part No.M95FA-03-STD
BrandQuectel
£10.961
Each (In a Box of 25)
Units
Module - 850, 900, 1800, 1900MHz - - - - - UART - 19.9 x 23.6 x 2.65mm 2.65mm 19.9mm +85 °C
RS Stock No. 908-4120
Mfr. Part No.M95FA-03-STDN
BrandQuectel
£12.36
Each
Units
Module - 850,900,1800,1900MHz - - - - - UART - 19.9 x 23.6 x 2.65mm 2.65mm 19.9mm +85 °C
RS Stock No. 793-1992
Mfr. Part No.RFM69HW-868-S2
BrandHopeRF
£12.63
Each
Units
Module - 868MHz FSK, GFSK, GMSK, MSK, OOK 300kbit/s +20dBm - -120dBm SPI 1.8 → 3.6V 19.7 x 16 x 1mm 1.9mm 19.7mm +70 °C
RS Stock No. 847-6922
Mfr. Part No.EHS6T-USB
BrandGemalto
£155.39
Each
Units
Module - 1800 MHz, 1900 MHz, 2100 MHz, 800 MHz, 850 MHz, 900MHz - - - - - I2C, SPI - 115 x 86 x 26mm 26mm 115mm +65 °C
RS Stock No. 781-3061
Mfr. Part No.28340
£39.67
Each
Units
Reader - - - - - - - USB - - - - -
RS Stock No. 666-6625
Mfr. Part No.28140
£39.76
Each
Units
Reader - - - - - - - UART 4.5 → 5.5V - - 82.5mm +85 °C
RS Stock No. 617-1811
Mfr. Part No.QAM-TX3
BrandQuasar
£5.84
Each
Units
Module - 433.92MHz - 3000Hz +10dBm - - - 3 → 12V 5.2 x 7.08 x 1.8mm 1.8mm 7.08mm +85 °C
RS Stock No. 793-1995
Mfr. Part No.RFM69W-433-S2
BrandHopeRF
£6.55
Each
Units
Module - 433MHz FSK, GFSK, GMSK, MSK, OOK 300kbit/s +13dBm - -120dBm SPI 1.8 → 3.6V 19.7 x 16 x 1mm 1.9mm 19.7mm +70 °C
RS Stock No. 617-2000
Mfr. Part No.RWD-QT
£16.14
Each
Units
Module - - - - - - - TTL 5V - - 30.5mm +85 °C
RS Stock No. 666-6757
Mfr. Part No.ALPHA-TRX433S
£9.13
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. 765-8952
Mfr. Part No.BGS2T RS-232
BrandCinterion
£77.20
Each
Units
Module - 850 MHz, 900 MHz, 1800 MHz, 1900MHz - - - - - RS232 - 55 x 80 x 23mm 23mm 80mm +85 °C
RS Stock No. 786-3198
Mfr. Part No.PTM210
BrandEnOcean
£29.45
Each
Units
Module - 868MHz ASK 125kbit/s +5dBm - - - - 40 x 40 x 11.2mm 11.2mm 40mm +65 °C
RS Stock No. 843-0806
Mfr. Part No.28448
£2.21
Each
Units
Module - - - - - - - - - - - - -
RS Stock No. 783-9666
Mfr. Part No.ERA-CONNECT2-PIK1
BrandLPRS
£51.55
Each
Units
Module - 868 MHz, 915MHz - 115.2kbit/s +7dBm - -117dBm USB 5V 80 x 22 x 10mm 10mm 80mm +85 °C
RS Stock No. 793-4411
Mfr. Part No.BRAVO-T868
£17.54
Each
Units
Module - 868MHz FSK 9.6kbit/s +13dBm - -121dBm - 1.8 → 3.6V 17 x 48 x 10.5mm 10.5mm 48mm +85 °C
RS Stock No. 873-6678
Mfr. Part No.AFIG-0007
BrandZF
£11.21
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 542-517
Mfr. Part No.RWD-MIFARE-OEM
£63.61
Each
Units
Module - - - - - - - TTL 5V - - - -
RS Stock No. 617-1984
Mfr. Part No.RWD-MIFARE
£30.53
Each
Units
Module - - - - - - - TTL 4 → 6V - - 30.5mm +85 °C