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. 412-674
Mfr. Part No.AD8361ARMZ
SGD13.38
Each
units
Controller - 2.5GHz - - - Surface Mount - - - 3 x 3 x 0.85mm 0.85mm 3mm +85 °C
RS Stock No. 818-4910
Mfr. Part No.TRF7960ARHBT
SGD7.31
Each
units
Module - - ASK, OOK - - Surface Mount - - - 5.15 x 5.15 x 0.95mm 0.95mm 5.15mm +110 °C
RS Stock No. 184-0459
Mfr. Part No.ATSAMR30M18A-I/RM100
BrandMicrochip
SGD8.70
Each
units
Module - 1GHz BPSK, O-QPSK 1000kbit/s 8.7dBm - -105dBm USB 1.8 → 3.63V 12.7 x 11 x 2.71mm 2.71mm 12.7mm +85 °C
RS Stock No. 184-0450
Mfr. Part No.ATSAMR30M18A-I/RM100
BrandMicrochip
SGD7.956
Each (In a Tray of 136)
units
Module - 1GHz BPSK, O-QPSK 1000kbit/s 8.7dBm - -105dBm USB 1.8 → 3.63V 12.7 x 11 x 2.71mm 2.71mm 12.7mm +85 °C
RS Stock No. 146-5909
Mfr. Part No.Lazurite 920J
BrandLapis
SGD68.64
Each
units
Module - 920MHz - 100kbit/s - - - - 15V dc - - - -
RS Stock No. 185-8702
Mfr. Part No.N24RF16DTPT3G
SGD4.044
Each (In a Pack of 5)
units
Module - - - - - - - I2C 1.8 → 5.5V 3.1 x 4.5 x 1.05mm 1.05mm 3.1mm +105 °C
RS Stock No. 195-4799
Mfr. Part No.PCINC1000C-8
BrandNeoCortec
SGD116.73
Each
units
Module - - - - - - - PCI - - - - -
RS Stock No. 189-0221
Mfr. Part No.N24RF64DWPT3G
SGD2.044
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. 189-0364
Mfr. Part No.N24RF64DWPT3G
SGD3.122
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. 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
RS Stock No. 172-9310
Mfr. Part No.XB8-DMRS-002
SGD37.095
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
New
RS Stock No. 211-0206
Mfr. Part No.6GT2002-0JD10
BrandSiemens
SGD1,485.04
Each
units
Reader/Writer - - - - - - - - 24V - - - -
RS Stock No. 672-9053
Mfr. Part No.CARD-MIFARE4K
SGD8.26
Each
units
Module - - - - - - - - - - - - -
New
RS Stock No. 206-9147
Mfr. Part No.BG96MA-128-SGN
BrandQuectel
SGD56.54
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - USB 2.0 - - - - -
RS Stock No. 762-0121
Mfr. Part No.ZULUEVAL-T
SGD204.83
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. 162-4454
Mfr. Part No.RFID A1_B1 EB (000374)
SGD5.67
Each
units
Reader - - - - - - - I2C, Serial, SPI, UART, USB 2.5 → 3.6V - - 46mm +85 °C
RS Stock No. 523-6333
Mfr. Part No.AD8314ARMZ
SGD14.56
Each
units
Controller - - - - - Surface Mount - - - 3 x 3 x 0.85mm 0.85mm 3mm +85 °C
New
RS Stock No. 206-9155
Mfr. Part No.EC25EUXGA-128-SGNS
BrandQuectel
SGD100.96
Each
units
- - B1/B3/B7/B8/B20/B28A/B38/B40/B41MHz - - - - - USB 2.0 - - - - -
New
RS Stock No. 206-9166
Mfr. Part No.MC60ECA-04-BLE
BrandQuectel
SGD32.18
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - - - - - - -
RS Stock No. 783-9669
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
SGD152.28
Each
units
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C