HY40A12T09-1 40kHz Ultrasonic Transmitter (65dB Sensitivity, 12x9mm Plug-In Transducer)

The HY40A12T09-1 Ultrasonic Transmitter is a high-performance 40kHz piezoelectric ultrasonic transducer designed for transmitting ultrasonic waves in distance measurement, object detection, ranging, and industrial sensing applications. Featuring a compact 12 × 9mm plug-in package and approximately 65dB transmitting sensitivity, it delivers stable ultrasonic output with low power consumption. This transducer is commonly paired with a compatible 40kHz ultrasonic receiver to build custom ultrasonic sensing systems for Arduino, ESP32, STM32, Raspberry Pi, and other embedded platforms.

Key Features -

• 40kHz ultrasonic transmitting frequency

• Approximately 65dB transmitting sensitivity

• Piezoelectric ultrasonic transmitter

• Compact 12 × 9mm plug-in package

• Stable and reliable performance

• Low power consumption

• Narrow beam for accurate transmission

• Easy integration into custom circuits

• Long operational life

• Ideal for ultrasonic ranging systems

Specifications -

• Product type - Ultrasonic Transmitter

• Model - HY40A12T09-1

• Operating frequency - 40kHz

• Transmitting sensitivity - Approximately 65dB

• Transducer type - Piezoelectric Ultrasonic Transmitter

• Package size - 12 × 9mm

• Mounting type - Through Hole (Plug-In)

• Housing material - Aluminum

• Operating voltage - Depends on External Driver Circuit

• Application - Ultrasonic Signal Transmission

Applications -

• Ultrasonic distance measurement

• Object detection systems

• Parking assistance sensors

• Liquid level measurement

• Robotics

• Industrial automation

• Custom ultrasonic ranging modules

• Embedded electronics