RXB61 433MHz Wireless Receiver Module

The RXB61 is a compact ASK superheterodyne receiver module designed for reliable wireless data reception in the 433.92MHz ISM band. It combines a high-sensitivity RF front-end with a superheterodyne architecture to achieve -111dBm sensitivity, enabling stable reception of weak signals from compatible ASK and OOK transmitters. The module operates from a wide 3V to 5.5V supply and draws only 4.8mA at 5V, making it suitable for battery-powered remotes, sensors, and portable wireless devices. Its small 30mm × 8.5mm × 5mm footprint and through-hole pins allow easy integration into existing boards, breadboards, and Arduino projects, while the built-in noise and interference suppression improves signal accuracy in local environments. The receiver delivers decoded digital data directly to the host microcontroller, so only a simple decoding stage is needed to complete a wireless link. This RXB61 433MHz receiver is widely used in car remote entry systems, automatic doors, wireless alarms, motorized shutters, industrial controllers, and general wireless data transmission where a low-cost ASK receiver module with dependable sensitivity is required.

Application

1. Automotive remote keyless entry (RKE) and car door remote systems.
2. Garage door, barrier, roller shutter, and gate openers.
3. Wireless security alarms, doorbells, and smart home control nodes.
4. Industrial remote controllers and wireless data transmission links.
5. Arduino and embedded projects that require a compact 433.92MHz ASK receiver.

Specifications

1. Model: RXB61
2. Operating frequency: 433.92MHz
3. Modulation: ASK / OOK
4. Receiver type: superheterodyne
5. Supply voltage: 3V to 5.5V DC
6. Current consumption: 4.8mA at 5V, 433.92MHz
7. Sensitivity: -111dBm
8. Data rate: up to 2.4kbps (Manchester encoding)
9. Noise and interference suppression: local noise suppression (limited jammer rejection)
10. Antenna: 50Ω, quarter-wave antenna approximately 17cm for 433.92MHz
11. Operating temperature: -30°C to +85°C
12. Dimensions: 30mm × 8.5mm × 5mm (length × width × height)
13. Pin type: through-hole
14. Certifications: designed to support CE and FCC approval