Wireless 433.92 MHz RF Superheterodyne Receiver Module (ASK / OOK Demodulation, 3.3V–5.5V DC, -108 dBm High Sensitivity, Compact PCB Sub-Assembly)

Product Overview

The KRECEIVERV003 is an industrial-grade compact 433.92 MHz superheterodyne RF wireless receiver module engineered for low-power, short-to-medium-range wireless communication. Purpose-built for security alarm panels, gate automation controls, garage door openers, remote keyless entry (RKE) interfaces, access control card-key fobs, and smart home relay modules, this compact sub-assembly decodes high-frequency radio transmissions directly into digital baseband signals for host microcontrollers and security control mainboards.

Operating across an ultra-stable 433.92 MHz carrier frequency with ASK / OOK (Amplitude Shift Keying / On-Off Keying) demodulation, the module incorporates a high-performance integrated RF receiver chip that provides an exceptional reception sensitivity rating down to -108 dBm. Engineered with a flexible 3.3V to 5.5V DC input range, the KRECEIVERV003 delivers robust anti-interference rejection against local EMI/RFI noise compared to basic superregenerative modules. Its minimalist through-hole pin header interface enables straightforward solder integration directly onto host alarm control motherboards, expansion cards, or breadboard prototypes for wireless security deployments.

Key System Features & Functionality

• Superheterodyne RF Architecture: Delivers high frequency stability and suppression of local oscillator radiation, outperforming unstable superregenerative boards.

• High Reception Sensitivity (-108 dBm): Captures weak RF signals reliably from remote key fobs, wireless PIR detectors, and panic buttons across demanding physical environments.

• Standard 433.92 MHz Carrier Frequency: Universally compatible with popular 433 MHz fixed-code, learning-code (EV1527, PT2262), and rolling-code remote transmitters.

• ASK / OOK Demodulation: Supports industry-standard Amplitude Shift Keying data streams with data rates up to 10 kbps.

• Wide Operating Voltage (3.3V – 5.5V DC): Integrates seamlessly with standard 3.3V microcontrollers (ARM, ESP32) and legacy 5V TTL logic systems (PIC, AVR, Arduino).

• Ultra-Low Current Consumption: Draws typically under 5 mA during active reception, making it ideal for battery-backed alarm panels and solar-powered gate operators.

• Dedicated Antenna Solder Pad: Features a designated ANT pad for attaching an external wire whip antenna (approx. 17 cm) or coaxial connector to maximize transmission range