BBAT-Q27D2 Product Overview
The BBAT-Q27D2 is a compact piezoelectric mesh atomizer plate made from PZT-4 piezoelectric ceramic, SUS316L stainless-steel foil, and a polyimide microporous membrane. It operates at a typical frequency of 101 kHz and provides a typical atomization rate of 0.45 mL/min, equivalent to 27 mL/h.
The plate is designed for portable atomization devices, medical nebulizer modules, humidification modules, and other precision liquid atomization systems. Its typical overall diameter is 16 mm and its typical overall thickness is 0.78 mm.
Model Designation
| Field | Meaning |
|---|---|
| BBAT | Ultrasonic atomization product |
| Q27 | Typical atomization rate of 27 mL/h, or 0.45 mL/min |
| D2 | Typical average pore diameter of 2 µm |
Product Features
- Typical operating frequency of 101 kHz
- Typical atomization rate of 0.45 mL/min, or 27 mL/h
- Typical average pore diameter of 2 µm
- Approximately 2650 micropores
- SUS316L stainless-steel foil with a polyimide microporous membrane
- PZT-4 piezoelectric ceramic
- Typical diameter of 16 mm and typical overall thickness of 0.78 mm
- Uniform micropore distribution for compact atomization-system integration
Main Specifications
| Parameter | Unit | Minimum | Typical | Maximum |
|---|---|---|---|---|
| Capacitance | nF | 2.4 | 2.8 | 3.2 |
| Frequency | kHz | 96 | 101 | 106 |
| Impedance | Ω | — | — | 100 |
| Atomization rate | mL/min | 0.30 | 0.45 | 0.60 |
| Atomization rate, converted | mL/h | 18 | 27 | 36 |
| Number of pores | pcs | 2500 | 2650 | 2800 |
| Average pore diameter | µm | 1.5 | 2.0 | 2.5 |
| Overall diameter | mm | 15.75 | 16.00 | 16.25 |
| Overall thickness | mm | 0.76 | 0.78 | 0.80 |
| Lead length | mm | — | 28 | — |
| Lead outer diameter | mm | 0.6 | 0.7 | 0.8 |
Structural Dimensions
| Component | Inner diameter | Outer diameter |
|---|---|---|
| Ceramic | 7.8 ± 0.25 mm | 16 ± 0.25 mm |
| Silver electrode | 8.8 ± 0.5 mm | 15 ± 0.5 mm |
| Thermal-insulation layer | 7.3 +0/−0.5 mm | 16.5 +0.5/−0 mm |
- Ceramic inner diameter: 7.8 mm
- Central perforated area diameter: 2.8 mm
- Ceramic thickness: 0.5 mm
- Polyimide membrane thickness: 0.05 mm
- Overall assembly thickness: 0.78 mm
Materials
| Component | Material |
|---|---|
| Piezoelectric ceramic | PZT-4 |
| Metal foil | SUS316L stainless steel |
| Microporous membrane | Polyimide film, 100HN |
Typical Applications
- Portable mesh atomization devices
- Medical nebulizer modules
- Humidification and liquid atomization modules
- Compact precision spray equipment
- OEM atomization-system integration
Integration Notes
- Match the drive circuit to the actual resonant frequency of the atomizer plate.
- Protect the soldering area from excessive heat and mechanical stress.
- Insulate exposed leads and protect the connection area against liquid ingress.
- Avoid bending, compressing, or scratching the polyimide microporous membrane.
- Account for liquid viscosity, surface tension, temperature, liquid level, drive conditions, and installation because these factors affect atomization rate.
- Verify the compatibility of all wetted materials with the intended liquid before use.