Cylindrical ultrasonic transducer TA0400KA

piezoelectrichigh-frequencyproximity

Product Overview
The TA0400KA is a 400 kHz ultrasonic transducer engineered for short-range non-contact distance measurement from 0.06 to 0.3 m. With a blind zone <0.06 m and 1 mm resolution, it is suitable for precise close-range sensing in industrial automation, robotics and compact detection systems.

Key Features

• Measurement range: 0.06–0.3 m for short-distance sensing.
• Center frequency: 400 kHz for high-frequency distance detection.
• Resolution: 1 mm for fine short-range measurements.
• Beam angle: 7° ±2° (-3 dB) for focused detection.
• Compact housing: φ10 × 7 mm for constrained installations.
• Protection: IP65 for dust and water resistance in industrial environments.
• Cable: standard 20 cm, customizable on request.

Technical Specifications

• Model: TA0400KA
• Center Frequency: 400 kHz
• Bandwidth: ±4%
• Measure Range: 0.06–0.3 m
• Blind Zone: <0.06 m
• Resolution: 1 mm
• Beam Angle: 7° ±2° (-3 dB)
• Static Capacitance: 130 pF ±20 pF
• Minimal Parallel Impedance: 800 Ω ±30%
• Operating Voltage: 300 Vp-p (pulse duty cycle 2%)
• Operating Temperature: -20°C to +60°C
• Storage Temperature: -35°C to +70°C
• Protection Level: IP65
• Dimension: φ10 × 7 mm
• Installation: outer cylindrical fixed
• Shell Material: ABS or aluminum alloy
• Cable Length: 20 cm (customizable)
• Weight: 10 g

Typical Applications

• Locating
• Flow measurement
• Approach measurement
• Traffic measurement
• Obstacle avoidance
• Robot sensing
• Short-distance precision measurement

Mechanical Design
The sensor features a compact cylindrical structure (φ10 × 7 mm) with an acoustic matching layer and a small cable outlet for easy integration. It supports outer cylindrical fixed installation and is available with ABS or aluminum alloy housing. Standard cable length is 20 cm and can be customized.

Electrical and Test Information
Evaluation uses a test circuit comprising a function generator, the ultrasonic sensor, a target and an oscilloscope; a typical test distance is 15 cm. Reference resistor values: R1 = 3.9 kΩ, R2 = 1 kΩ. The TA0400KA is a ceramic transducer capable of transmit/receive operation for compact short-range ultrasonic sensing circuits.