High-frequency ultrasonic transducer BBMU-PFT200K

measurement

Overview
The BBMU-PFT200K is a 200 kHz ultrasonic transducer designed for pulmonary function instruments, spirometry, respiratory flow measurement and medical airflow sensing modules. Documented operating range is 0.10 to 1.5 m. The acoustic field is characterized by a 10° ±10% half-power beam angle at -3 dB, to support integration within the required acoustic path and module geometry.

Technical specifications
Model — BBMU-PFT200K
Center frequency — 200 kHz ±5%
Recommended range — 0.10 to 1.5 m
Minimum impedance — (300-700) Ω ±20%
Capacitance — 400 pF ±20% at 1 kHz
Operating voltage — Peak voltage <750 Vpp
Operating temperature — -40 to +80°C
Pressure rating — 16 kgf or 1.6 MPa
Half-power beam angle — 10° ±10% at -3 dB
Protection rating — IP68
Weight — 10 g ±5% with 25 cm cable

Respiratory measurement applications

• Pulmonary function instruments
• Spirometry
• Respiratory flow measurement
• Medical airflow sensing modules

Electrical and mechanical integration
The drive and receive circuitry should be designed for the documented minimum impedance of (300-700) Ω ±20%, capacitance of 400 pF ±20% at 1 kHz and peak voltage below 750 Vpp. Specified environment: -40 to +80°C, pressure rating 16 kgf / 1.6 MPa and IP68 protection. Listed weight: 10 g ±5% with 25 cm cable.

Technical specifications (detailed)

• Model: BBMU-PFT200K
• Center frequency: 200 kHz ±5%
• Recommended range: 0.10 to 1.5 m
• Minimum impedance: (300-700) Ω ±20%
• Capacitance: 400 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <750 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: 16 kgf or 1.6 MPa
• Half-power beam angle: 10° ±10% at -3 dB
• Protection rating: IP68
• Weight: 10 g ±5% with 25 cm cable