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Vent Membrane for Acoustics - High-Quality Solutions from China Suppliers and Factory
🔬Membrane Properties
| PHYSICAL PROPERTIES | REFERRED TEST STANDARD | UNIT | TYPICAL DATA |
|---|---|---|---|
| Membrane Color | / | / | Grey |
| Membrane Construction | / | / | ePTFE |
| Membrane Surface Property | / | / | Hydrophobic |
| Thickness | ISO 534 | mm | 0.01±0.005 |
| Air Permeability | ASTM D737 (1 cm²) | ml/min/cm2@7KPa | >5000 |
| Water Entry Pressure | ASTM D751 (1 cm²) | KPa for 30 sec | >50 KPa |
| Transmission Loss (@1kHz, I.D.= 2.0mm) | Internal Control | dB | < 1 dB |
| IP Rating (Test I.D.= 2.0mm) | IEC 60529 | / | IP67/IP68 |
| ISO Rating (Test I.D.= 2.0mm) | ISO 22810 | / | NA |
| Operation Temperature | IEC 60068-2-14 | ℃ | -40℃～260℃ |
| ROHS | IEC 62321 | / | Meet ROHS Requirements |
| PFOA & PFOS | US EPA 3550C & 8321B | / | PFOA & PFOS Free |
🏗️Product Structure
📏Product Model & Dimension
| Product Model | Outer Diameter (OD) | Inner Diameter (ID) | Airflow (ml/min@7Kpa) | Sound Loss @1KHz |
|---|---|---|---|---|
| 100G20-A2040 | 4.0 | 2.0 | >157 | ≤1dB |
| 100G20-A2450 | 5.0 | 2.4 | >226 | ≤1dB |
| 100G20-A3347 | 4.7 | 3.3 | >427 | ≤1dB |
| 100G20-A3060 | 6.0 | 3.0 | >353 | ≤1dB |
| 100G20-A3376 | 7.6 | 3.3 | >427 | ≤1dB |
| 100G20-A4080 | 8.0 | 4.0 | >628 | ≤1dB |
| 100G20-A5094 | 9.4 | 5.0 | >981 | ≤1dB |
(Note: Dimensions can be customized.)
📉Transmission Loss Curve
Transmission Loss of ZZPIP-100G20-A acoustics membrane < 1dB @ 1KHz, and < 2.5 dB in the whole frequency range.
📱Application
This series of membranes can be used in waterproof and acoustics membrane for portable and wearable electronic devices, such as Smart Phone, Earphone, Smart Watch, and Bluetooth Speaker, Alertor etc.
The membrane could provide the device with immersed waterproof protection and minimal sound transmission loss, keeping the device with the excellent acoustics transmission performance.
📝Technical Notes
- Acoustic Response and IP Grade test part dimension: I.D. 2.0 mm / O.D. 6.0 mm.
- The results are tested using a typical digital output MEMS microphone system and self-designed test device in ZZPIP laboratory with representative sample size. The design of the device will affect final performance.
- All data above are typical data for the membrane raw material, for reference only, and should not be used as special data for outgoing quality control.
⏳Shelf Life
Shelf life is 5 years from the date of receipt for this product as long as this product is stored in its original packaging in an environment below 80° F (27° C) and 60% RH.
❓Frequently Asked Questions
What is the primary material used in these membranes?
The membranes are constructed from high-quality ePTFE, providing excellent hydrophobic properties and air permeability.
What is the waterproof rating of this product?
This series achieves an IP67/IP68 rating, ensuring reliable protection against water immersion for portable electronic devices.
How does the membrane affect sound quality?
The membrane is designed for minimal acoustic impact, with a transmission loss of less than 1dB at 1KHz and less than 2.5dB across the entire frequency range.
What is the operating temperature range?
The membrane can operate safely in extreme environments ranging from -40℃ to 260℃.
Are these membranes environmentally compliant?
Yes, they meet all ROHS requirements and are strictly PFOA & PFOS free.
Can the dimensions be customized for specific designs?
Yes, while we offer several standard models (e.g., 100G20-A2040), dimensions can be customized to fit your specific device requirements.