TCT TCT40-16R 40 kHz ultrasonic sensor

It integrates both emission and reception functions, with a narrow beam angle of 60° ±15° and a typical detection range of up to 4 meters in air. The sensor operates at 5 V DC with low current consumption, producing a sound pressure level of at least 112 dB and a receiving sensitivity of ≥-65 dB. It features a capacitance of 2400 pF ±20% and supports operation in temperatures from -20 °C to +70 °C. The module is compatible with standard microcontrollers and embedded systems, making it suitable for robotics, automation, and level sensing applications. Transducer Type: Piezoelectric ceramic for ultrasonic signal emission and reception.

• Nominal Frequency: 40 kHz with ±1 kHz tolerance for precise detection
• Sound Pressure Level: ≥117 dB at 0 dB = 0.02 mPa for consistent signal output
• Receiving Sensitivity: ≥-65 dB at 0 dB = 1 V/Pa for accurate echo detection
• Capacitance: 2500 pF ±30% supporting standard driving circuits
• Maximum Driving Voltage: 80 V peak-to-peak for safe operation
• Beam Angle / Directivity: 60° ±15° (-6 dB) for targeted sensing
• Operating Temperature: -20 °C to +70 °C with stable performance across environmental variations