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. 126-2179
Mfr. Part No.RWD-QT-LP-SMT (000327)
SGD39.67
Each
units
Module - - - - - - - RS232, SPI, TTL 5V - - 17.4mm +85 °C
RS Stock No. 761-9878
Mfr. Part No.ZULU-M868
SGD40.05
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. 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. 146-5906
Mfr. Part No.Lazurite 920J
BrandLapis
SGD59.69
1 Box of 1
Box(es)
- Xbee Shield 920MHz - 100kbit/s - - - - 15V dc - - - -
RS Stock No. 172-2311
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
SGD181.43
Each (In a Tray of 20)
units
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °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
RS Stock No. 672-9053
Mfr. Part No.CARD-MIFARE4K
SGD8.26
Each
units
Module - - - - - - - - - - - - -
RS Stock No. 783-9669
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
SGD155.27
Each
units
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C
RS Stock No. 125-1244
Mfr. Part No.ZETAPLUS-433-SO
SGD19.39
Each
units
Module - 433MHz FM 500kbit/s +13dBm - -116dBm Serial 1.8 → 3.6V 16 x 16.5 x 1mm 1mm 16.5mm +85 °C
RS Stock No. 185-8027
Mfr. Part No.N24RF04DTPT3G
SGD1.72
Each (On a Reel of 3000)
units
Module - - - - - - - I2C 1.8 → 5.5V 3.1 x 4.5 x 1.05mm 1.05mm 3.1mm +105 °C
RS Stock No. 126-2182
Mfr. Part No.OEM-MICODE-RS232 (000127)
SGD73.12
Each
units
Reader - - - - - - - RS232 5V - - 75mm -
RS Stock No. 125-1257
Mfr. Part No.RFM119W-868S1
SGD9.39
Each
units
Module - 868MHz FSK - +13dBm - - 2-Wire 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85 °C
New
RS Stock No. 211-0206
Mfr. Part No.6GT2002-0JD10
BrandSiemens
SGD1,590.74
Each
units
Reader/Writer - - - - - - - - 24V - - - -
RS Stock No. 122-5257
Mfr. Part No.ZETA-433-D
SGD18.29
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. 793-4408
Mfr. Part No.T9-434-525
SGD34.19
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. 206-9147
Mfr. Part No.BG96MA-128-SGN
BrandQuectel
SGD57.65
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - USB 2.0 - - - - -
New
RS Stock No. 209-6139
Mfr. Part No.LTC5507ES6#TRMPBF
SGD5.842
Each (In a Pack of 5)
units
- - - - - - - - - - - - - -
RS Stock No. 200-7272
Mfr. Part No.NC1000C-9
BrandNeoCortec
SGD16.59
Each
units
- - - - - - - - - - - - - -
RS Stock No. 195-4799
Mfr. Part No.PCINC1000C-8
BrandNeoCortec
SGD116.73
Each
units
Module - - - - - - - PCI - - - - -
RS Stock No. 206-9145
Mfr. Part No.BG95M3LA-64-SGNS
BrandQuectel
SGD46.00
Each
units
- - 850/ 900/ 1800/ 1900MHz - - - - - USB 2.0 - - - - -