Immersible ultrasonic transducer BBAT-Q50D2

high-frequency

Product overview
The BBAT-Q50D2 is an ultrasonic atomizing transducer supplied with a matched driver PCB. Operating at 2.4–2.6 MHz with a rated power of 5 W and 12 V DC input, it produces a fog output >50 mL/h and droplet sizes of 2–3 µm. The module is intended for integration into nebulizers, humidifiers and industrial atomizing systems; multiple frequency, power and voltage options are available to suit OEM designs.

Main specifications
Model: BBAT-Q50D2
Fog output: >50 mL/h
Droplet size: 2–3 µm
Operating frequency: 2.4–2.6 MHz
Rated power: 5 W
Input voltage: 12 V DC
Reference service life: 15000 h
Operating water level: 18–28 mm
Liquid temperature range: 0–50 °C
Test liquid: Pure water
Weight: 0.08 kg

Product features

• Atomizing transducer supplied with a matched driver PCB for plug‑and‑play integration
• Fine droplet generation (1–5 µm across available configurations)
• Low‑voltage DC input options (5–48 V) and multiple rated power options (2–30 W)
• Coating choices for drinking water, corrosive liquids or enhanced corrosion resistance
• Available transducer and PCB dimensions for flexible OEM mounting
• Supports power adjustment and low‑liquid protection designs

Available configurations
BBAT-Q380D4 — 1.7 MHz; 48 V DC; 30 W; droplets 4–5 µm; fog >380 mL/h; life 3000 h; water level 30–40 mm
BBAT-Q300D4 — 1.7 MHz; 48 V DC; 23 W; droplets 4–5 µm; fog >300 mL/h; life 10000 h; water level 30–40 mm
BBAT-Q250D4 — 1.7 MHz; 36 V DC; 22 W; droplets 4–5 µm; fog >250 mL/h; life 10000 h; water level 30–40 mm
BBAT-Q180D3 — 2.4–2.5 MHz; 24 V DC; 15 W; droplets 3 µm; fog >180 mL/h; life 10000 h; water level 25–35 mm
BBAT-Q250D3 — 2.0 MHz; 36 V DC; 18 W; droplets 3 µm; fog >250 mL/h; life 10000 h; water level 25–35 mm
BBAT-Q150D2 — 2.4–2.6 MHz; 24 V DC; 12 W; droplets 2–3 µm; fog >150 mL/h; life 10000 h; water level 25–35 mm
BBAT-Q70D2 — 2.4–2.6 MHz; 12 V DC; 7 W; droplets 2–3 µm; fog >70 mL/h; life 10000 h; water level 18–28 mm
BBAT-Q50D2 — 2.4–2.6 MHz; 12 V DC; 5 W; droplets 2–3 µm; fog >50 mL/h; life 15000 h; water level 18–28 mm
BBAT-Q30D2 — 2.4–2.6 MHz; 12 V DC; 3 W; droplets 2–3 µm; fog >30 mL/h; life 20000 h; water level 18–28 mm
BBAT-Q40D1 — 3.0 MHz; 12 V DC; 5 W; droplets 1–2 µm; fog >40 mL/h; life 15000 h; water level 18–28 mm
BBAT-Q25D1 — 3.0 MHz; 12 V DC; 3 W; droplets 1–2 µm; fog >25 mL/h; life 20000 h; water level 18–28 mm
BBAT-Q5D1 — 3.0 MHz; 5 V DC; 2 W; droplets 1–2 µm; fog >5 mL/h; life 20000 h; water level 18–28 mm

Dimensions
Atomizing transducer
Φ1: 19 mm
Φ2: 12 mm
H1: 8.7 mm
H2: 2.7 mm
L1: 34 mm
L2: 26 mm
Lead length L3: 200 mm
Width W: 23.5 mm

Driver PCB
Height H3: 32 mm
Length L4: 60 mm
Mounting distance L5: 53 mm
Mounting distance L6: 45 mm
Width W1: 36 mm

Coating options
Nickel coating — suitable for drinking water and liquids with similar properties
Titanium alloy coating — enhanced corrosion resistance for aggressive environments
Anti‑corrosion coating — intended for corrosive or strongly acidic liquids; select when liquid pH < 5 after compatibility evaluation

Typical applications

• Ultrasonic nebulizers
• Humidifiers and climate control systems
• Fog and aerosol generation equipment
• Liquid atomizing modules for OEM integration
• Industrial atomizing systems

Installation and operating requirements

• Provide forced‑air cooling to the driver PCB heatsink
• Connect transducer to the driver PCB before power‑up
• Keep active surface submerged during operation; do not run dry
• Use a float or low‑liquid switch for automatic shutoff
• Avoid electrode‑type level control to prevent electrolysis damage to coatings
• Ensure no voltage difference between transducer surface and liquid
• Connect a 5.1 kΩ variable resistor to the PCB VR port for power adjustment (short = full power; open = zero)
• Periodically remove mineral deposits (Ca, Na, Mg, Si) from the transducer surface

Performance notes
Actual fog output and service life depend on input power, operating frequency, liquid properties and temperature, water level and system design. Reference service life is defined as operating time until fog output declines to 60% of initial level during continuous operation.

Technical specifications

• Model: BBAT-Q50D2
• Fog output: >50 mL/h
• Droplet size: 2–3 µm
• Operating frequency: 2.4–2.6 MHz
• Rated power: 5 W
• Input voltage: 12 V DC
• Reference service life: 15000 h
• Operating water level: 18–28 mm
• Liquid temperature range: 0–50 °C
• Test liquid: Pure water
• Weight: 0.08 kg
• Transducer dimensions: Φ1 19 mm; Φ2 12 mm; H1 8.7 mm; H2 2.7 mm; L1 34 mm; L2 26 mm; Lead length 200 mm; Width 23.5 mm
• Driver PCB dimensions: Height 32 mm; Length 60 mm; Mounting distances 53 mm and 45 mm; Width 36 mm