RF Solutions ALPHA-TX433S RF Transmitter Module 433 MHz, 2.2 → 5.4V

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

ALPHA 433MHz Transmitter & Receiver Modules

This ALPHA range of radio data modules consists of transmitters, receivers and transceivers operating in the 433 ISM frequency band.

RF Carrier Frequency range: 430.24 to 439.75MHz ISM Band
Transmitter Output Power: up to +7dBm
Receiver Sensitivity: -109dBm @1200bps, BER = 0.1%
Modulation: FSK, OOK
High resolution PLL with 2.5KHz step
Programmable frequency deviation (from 30kHz to 210kHz, step 30kHz)
Max data rate: 115.2kbps with internal digital filters
SPI port for setup
Clock and reset signal output for external MCU use
Wake-up timer
Low-battery detection
Power supply: +2.2 to +5.4Vdc
Stand-by current less than 0.3μA
Operating temperature range: -40 to +85°C
Dimensions: 16.1 x 15.9 x 4.2mm
Applications: Remote control, Remote sensing, Wireless data collection, Home security system, Toys, Tyre pressure monitoring system, local communication for the Internet-of-Things (IoT)

RS Product Codes
666-6744 ALPHA-TX-433 Transmitter
666-6748 ALPHA-RX-433 Receiver
666-6757 ALPHA-TRX-433 Transceiver



Wireless Modules - RF Solutions

Attribute Value
Module Type Transmitter
Supported Frequency Bands 433MHz
Modulation Technique FM
Maximum RF Data Rate 256kbit/s
Maximum Output Power +7dBm
Receiver Sensitivity -109dBm
Supported Bus Interfaces SPI
Supply Voltage 2.2 → 5.4V
Dimensions 16.1 x 15.9 x 4.2mm
Height 4.2mm
Length 16.1mm
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
Width 15.9mm
8 In stock - FREE next working day delivery available
Price Each
£ 5.11
(exc. VAT)
£ 6.13
(inc. VAT)
Per unit
1 - 4
5 - 9
10 - 49
50 - 99
100 +
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