LR45B-433M 433 MHz superheterodyne receiver module with high sensitivity

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The LR45B-433M is a superheterodyne receiver module designed for wireless communication in the 433 MHz ISM band. It supports ASK and OOK modulation while providing high receiver sensitivity, excellent interference resistance, and stable operation. The module is well suited for remote controls, wireless sensors, alarm systems, home automation, and other applications requiring reliable wireless data reception.

Its compact design makes it easy to integrate into both new and existing electronic projects. For optimal reception, a quarter-wave antenna approximately 17.3 cm long is recommended.

Facts.
Model: LR45B-433M
Type: Superheterodyne receiver module
Operating frequency: 433.92 MHz
Modulation: ASK/OOK
Supply voltage: 3.3 to 5 V DC
Output: Digital data signal
Receiver sensitivity: High
Interference immunity: Good
Antenna connection: Solder pad for external antenna
Recommended antenna length: 17.3 cm quarter-wave
Applications: Remote controls, sensors, alarm systems, home automation and wireless data transmission
Mounting: Through-hole module

Included.
1 pc module.

About the product.
Weight: approx 11 gram.
Contact us if you have questions at info@pchbutik.se
Article no: 3650
Remaining stock quantity can be found under the Product details tab.
In our range since: 2026-07-06The 433 MHz ISM band is a license-free frequency range used for low-power short-range radio communications. In Europe, the band extends from 433.05 MHz to 434.79 MHz, with a center frequency of 433.92 MHz, which is by far the most commonly used frequency for low-cost transmitters and receivers.

For you.
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