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. 894-8981
Mfr. Part No.AFIM-1001
BrandZF
£26.96
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 873-6687
Mfr. Part No.AFZE-1005
BrandZF
£17.71
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 818-4910
Mfr. Part No.TRF7960ARHBT
£3.70
Each
Units
Module - - ASK, OOK - - Surface Mount - - - 5.15 x 5.15 x 0.95mm 0.95mm 5.15mm +110 °C
RS Stock No. 162-8433
Mfr. Part No.TRF7960ARHBT
£2.431
Each (On a Reel of 250)
Units
Module - - - - - - - - - 5.15 x 5.15 x 0.95mm 0.95mm 5.15mm +110 °C
RS Stock No. 860-7236
Mfr. Part No.AM-RX9-433P
£6.21
Each
Units
Module - 433.92MHz AM 10kbit/s - - -109dBm - 2.4 → 5V 4 x 44 x 11mm 11mm 44mm +25 °C
RS Stock No. 765-8965
Mfr. Part No.BGS2T RS-485
BrandCinterion
£86.69
Each
Units
Module - 850 MHz, 900 MHz, 1800 MHz, 1900MHz - - - - - - - 55 x 80 x 23mm 23mm 80mm +85 °C
RS Stock No. 385-487
Mfr. Part No.QFM-TX1-433
BrandQuasar
£3.24
Each
Units
Module - 433MHz FM 4.8kbit/s +10dBm - - - 2.2 → 3.5V 12.501 x 16.802 x 2.5mm 2.5mm 16.802mm +85 °C
RS Stock No. 617-4523
Mfr. Part No.CARD-H2
£2.96
Each
Units
Module - - - - - - - - - - - - -
RS Stock No. 786-3209
Mfr. Part No.STM 330
BrandEnOcean
£27.53
Each
Units
Module - 868MHz ASK 125kbit/s +8dBm - - - - 43 x 16 x 8mm 8mm 43mm +60 °C
RS Stock No. 786-3211
Mfr. Part No.TCM 300
BrandEnOcean
£24.16
Each
Units
Module - 868MHz ASK 125kbit/s +7dBm - -96dBm UART 2.6 → 4.5V 22 x 19 x 3.1mm 3.1mm 22mm +85 °C
RS Stock No. 783-9625
Mfr. Part No.ERA400TRS
BrandLPRS
£23.06
Each
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. 783-9628
Mfr. Part No.ERA400TS
BrandLPRS
£15.40
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. 177-4868
Mfr. Part No.ERA400TS
BrandLPRS
£19.891
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. 179-1184
Mfr. Part No.TCM 300
BrandEnOcean
£15.20
Each (On a Reel of 250)
Units
Module - 868MHz ASK 125kbit/s +7dBm - -96dBm UART 2.6 → 4.5V 22 x 19 x 3.1mm 3.1mm 22mm +85 °C
RS Stock No. 177-4867
Mfr. Part No.ERA400TRS
BrandLPRS
£20.21
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. 173-2656
Mfr. Part No.STM 300
BrandEnOcean
£20.031
Each (On a Reel of 250)
Units
Module - 868MHz ASK 125kbit/s +7dBm - -96dBm SPI, USB 2.1 → 4.5V 22 x 19 x 3.1mm 3.1mm 22mm +85 °C
RS Stock No. 704-3278
Mfr. Part No.RDF1
£17.42
Each
Units
Module - 433.92MHz FM - - - -103dBm - 4.5 → 5.5V - - 50.5mm +60 °C
RS Stock No. 786-3192
Mfr. Part No.STM 300
BrandEnOcean
£18.28
Each
Units
Module - 868MHz ASK 125kbit/s +7dBm - -96dBm SPI, USB 2.1 → 4.5V 22 x 19 x 3.1mm 3.1mm 22mm +85 °C
RS Stock No. 793-4395
Mfr. Part No.T9-434-075
£19.64
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. 786-3224
Mfr. Part No.TCM 320
BrandEnOcean
£25.61
Each
Units
Module - 868MHz ASK 125kbit/s +5.2dBm - -96dBm - 2.6 → 3.3V 36.5 x 18 x 5.5mm 5.5mm 36.5mm +85 °C