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. 908-4120
Mfr. Part No.M95FA-03-STDN
BrandQuectel
kr 144,81
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. 170-9181
Mfr. Part No.M95FA-03-STD
BrandQuectel
kr 117,774
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. 731-2732
Mfr. Part No.RFM22B-868-S1
BrandHopeRF
kr 108,37
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. 906-2732
Mfr. Part No.XB8-DMRS-002
kr 250,66
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
kr 243,215
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. 847-6922
Mfr. Part No.EHS6T-USB
BrandGemalto
kr 1 671,70
Each
Units
Module - 800 MHz, 850 MHz, 900MHz, 1800 MHz, 1900 MHz, 2100 MHz - - - - - I2C, SPI - 115 x 86 x 26mm 26mm 115mm +65 °C
RS Stock No. 617-1811
Mfr. Part No.QAM-TX3
BrandQuasar
kr 68,38
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. 542-517
Mfr. Part No.RWD-MIFARE-OEM
kr 714,25
Each
Units
Module - - - - - - - TTL 5V - - - -
RS Stock No. 786-3227
Mfr. Part No.USB 300
BrandEnOcean
kr 331,17
Each
Units
Module - 868MHz - 125kbit/s - - - UART, USB - 66 x 23 x 9mm 9mm 66mm +40 °C
RS Stock No. 786-3198
Mfr. Part No.PTM210
BrandEnOcean
kr 299,10
Each
Units
Module - 868MHz ASK 125kbit/s +5dBm - - - - 40 x 40 x 11.2mm 11.2mm 40mm +65 °C
RS Stock No. 179-1182
Mfr. Part No.USB 300
BrandEnOcean
kr 441,582
Each (In a Tray of 100)
Units
Module - 868MHz - 125kbit/s - - - UART, USB - 66 x 23 x 9mm 9mm 66mm +40 °C
RS Stock No. 617-1984
Mfr. Part No.RWD-MIFARE
kr 373,77
Each
Units
Module - - - - - - - TTL 4 → 6V - - 30.5mm +85 °C
RS Stock No. 781-3061
Mfr. Part No.28340
kr 479,14
Each
Units
Reader - - - - - - - USB - - - - -
RS Stock No. 918-9051
Mfr. Part No.BGS2T RS232- Pack B
BrandGemalto
kr 1 199,62
Each
Units
Module - 1900MHz - - - - - RS232 - 80 x 55 x 23mm 23mm 80mm +85 °C
RS Stock No. 786-3209
Mfr. Part No.STM 330
BrandEnOcean
kr 339,68
Each
Units
Module - 868MHz ASK 125kbit/s +8dBm - - - - 43 x 16 x 8mm 8mm 43mm +60 °C
RS Stock No. 772-9499
Mfr. Part No.MRF89XAM8A-I/RM
BrandMicrochip
kr 76,75
Each
Units
Module - - FSK, OOK - - - - - - 27.94 x 17.78 x 1.91mm 1.91mm 27.94mm +85 °C
RS Stock No. 122-5257
Mfr. Part No.ZETA-433-D
kr 109,27
Each
Units
Module - 433MHz FM 500kbit/s +13dBm - -116dBm SPI 1.8 → 3.6V 16 x 16.5 x 2mm 2mm 16.5mm +85 °C
RS Stock No. 793-1992
Mfr. Part No.RFM69HW-868-S2
BrandHopeRF
kr 147,96
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. 887-7211
Mfr. Part No.MRF89XAM8A-I/RM
BrandMicrochip
kr 67,336
Each (In a Tray of 54)
Units
Module - - FSK, OOK - - - - - - 27.94 x 17.78 x 1.91mm 1.91mm 27.94mm +85 °C
RS Stock No. 617-2000
Mfr. Part No.RWD-QT
kr 176,97
Each
Units
Module - - - - - - - TTL 5V - - 30.5mm +85 °C