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庫存編號 781-3061
製造零件編號28340
HK$504.76
單位
Reader - - - - - - - USB - - - - -
RS庫存編號 731-2735
製造零件編號RFM31B-868-D
BrandHopeRF
HK$85.63
單位
Module - 868MHz FSK, GFSK, OOK 256kbit/s - - -121dBm SPI 1.8 → 3.6V 14 x 15.5 x 5.9mm 5.9mm 15.5mm +85 °C
RS庫存編號 172-2311
製造零件編號CDT-TX-02M-R
BrandLPRS
HK$1,076.377
Each (In a Tray of 20)
單位
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C
RS庫存編號 783-9669
製造零件編號CDT-TX-02M-R
BrandLPRS
HK$921.17
單位
Module - 434MHz - 1200bit/s 10mW - - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C
RS庫存編號 133-759
製造零件編號ER400TRS-02
BrandLPRS
HK$449.56
單位
Module - 433MHz FSK 38.4kbit/s +10dBm - -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85 °C
RS庫存編號 666-6757
製造零件編號ALPHA-TRX433S
HK$75.44
單位
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庫存編號 843-0806
製造零件編號28448
HK$25.15
單位
Module - - - - - - - - - - - - -
RS庫存編號 762-0121
製造零件編號ZULUEVAL-T
HK$1,276.25
單位
Module - 868MHz FSK 256kbit/s +20dBm - -116dBm - 2.2 → 3.6V 11 x 25 x 1mm 1mm 25mm +85 °C
RS庫存編號 170-9181
製造零件編號M95FA-03-STD
BrandQuectel
HK$130.934
個 (以毎盒:25)
單位
Module - 850, 900, 1800, 1900MHz - - - - - UART - 19.9 x 23.6 x 2.65mm 2.65mm 19.9mm +85 °C
RS庫存編號 704-3278
製造零件編號RDF1
HK$192.66
單位
Module - 433.92MHz FM - - - -103dBm - 4.5 → 5.5V - - 50.5mm +60 °C
RS庫存編號 666-6625
製造零件編號28140
HK$506.46
單位
Reader - - - - - - - UART 4.5 → 5.5V - - 82.5mm +85 °C
RS庫存編號 715-4075
製造零件編號RWD-MICODE
HK$428.76
單位
Module - - - - - - - TTL 5V - - - -
RS庫存編號 908-4120
製造零件編號M95FA-03-STDN
BrandQuectel
HK$152.07
單位
Module - 850,900,1800,1900MHz - - - - - UART - 19.9 x 23.6 x 2.65mm 2.65mm 19.9mm +85 °C
RS庫存編號 731-2732
製造零件編號RFM22B-868-S1
BrandHopeRF
HK$115.90
單位
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
全新
RS庫存編號 225-1590
製造零件編號EC21EFATEA-512-STD
BrandQuectel
HK$621.21
單位
Module Energy Module 900 MHz, 1800 MHz - 150Mbps - Surface Mount - - 3.3 → 4.3V - - - -
全新
RS庫存編號 225-1591
製造零件編號EC25EFATEA-512-STD
BrandQuectel
HK$621.21
單位
Module Energy Module 900 MHz, 1800 MHz - 150Mbps - Surface Mount - - 3.3 → 4.3V - - - -
RS庫存編號 205-9933
製造零件編號2607011111000
HK$399.15
單位
- RF Module 169MHz - 25kbps 15dBm - - - 3.6V - - - -
全新
RS庫存編號 225-1592
製造零件編號EG25GGBTEA-256-SGNS
BrandQuectel
HK$753.59
單位
Module Energy Module 850 MHz, 900 MHz, 1800 MHz, 1900 MHz - 150Mbps - Surface Mount - - 3.3 → 4.3V - - - -
RS庫存編號 192-6595
製造零件編號RFID1-13RTTL-3V
HK$220.93
單位
Module - - - - - - - - - 25.5 x 16 x 0.9mm 0.9mm 25.5mm +80 °C
RS庫存編號 146-5909
製造零件編號Lazurite 920J
BrandLapis
HK$415.25
單位
Module - 920MHz - 100kbit/s - - - - 15V dc - - - -