TCT40-16 40kHz Ultrasonic Transducer

The TCT TCT40-16R is a 40?kHz ultrasonic sensor transceiver designed for precise distance measurement and object detection. 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.

Features

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

Specifications

Brand / Model | TCT TCT40-16T/R

Product Type | Piezoelectric Ultrasonic Sensor Transceiver

Nominal Frequency | 40?kHz ±1?kHz

Emitted Sound Pressure Level | ?117?dB (0?dB = 0.02?mPa)

Receiving Sensitivity | ?-65?dB (0?dB = 1?V/Pa)

Capacitance | 2500?pF ±30%

Maximum Driving Voltage | 80?V peak-to-peak

Beam Angle / Directivity | 60° ±15° (-6?dB)

Operating Voltage | 5?V DC typical

Operating Temperature Range | -20?°C to +70?°C

Storage Temperature Range | -40?°C to +80?°C

Applications | Ultrasonic ranging, robotics, parking detection, liquid level sensing, proximity switches

Links

- TCT40-16T/R Datasheet

- 3D model on grabcad.com