RC-TXASK-433

RF Transmitter Overview

The RC-TXASK-433 is a sub-1GHz ASK/OOK radio transmitter module manufactured by RadioControlli. It operates at the 433.92 MHz frequency band with a maximum output power of 10 dBm. The module features a crystal oscillator for stable transmission and supports a data rate up to 50 Kbit/s. Electrical specifications include a supply voltage range of 2.2V to 3.6V, a transmitting current of 21mA, and an operating temperature range from -25°C to +80°C. It utilizes a through-hole mounting type in a 6-pin package.

RF Transmitter Feature Summary

• Integrated crystal oscillator ensures precise frequency stability for reliable wireless communication.
• Supports ASK/OOK modulation protocols suitable for simple remote control and sensor applications.
• Includes a power-down mode to minimize energy consumption when not actively transmitting.

RF Transmitter Applications

• Home and building automation systems
• Wireless security alarm sensors
• Remote control devices

RF Transmitter Procurement Notes

Verify that the specific order matches the 433.92 MHz variant, as the manufacturer produces other frequency options such as 868 MHz. Confirm the through-hole package style aligns with your PCB design requirements. Ensure the supply voltage provided to the module stays within the 2.2V to 3.6V range to prevent damage or malfunction. Check for any regional regulatory restrictions regarding the use of the 433 MHz ISM band in your target market.

RF Transmitter Selection Notes

Select this component when a low-cost, simple transmitter solution is required for short-range data links. It is appropriate for applications where complex protocol stacks are unnecessary. Consider alternative FSK modules if higher noise immunity or better receiver sensitivity is needed compared to ASK/OOK. Verify that the 10 dBm output power meets the required coverage distance for the specific installation environment.

RF Transmitter Part Context

This module belongs to the RadioControlli family of sub-1GHz RF transmitters. It complements their receiver modules and more advanced SPI-programmable transceivers like the S2-LP series. While the S2-LP offers programmability, the RC-TXASK-433 provides a fixed-function, cost-effective alternative for basic transmission tasks without requiring microcontroller-based configuration.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult the manufacturer directly for cross-reference information or equivalent components from other suppliers offering similar ASK/OOK transmitter specifications.