China Acoustics Vent Membrane - Quality Suppliers & Trusted Factory for Superior Sound Control Solutions
Membrane Properties
| PHYSICAL PROPERTIES | REFERED 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 (Test Area: 1 cm²) | ml/min/cm2@7KPa | >5000 |
| Water Entry Pressure | ASTM D751 (Test Area: 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 & US EPA 8321B | / | PFOA & PFOS Free |
Product Structure
Product Model & Dimension
| 产品型号 | 外径（OD） | 内径（ID） | 透气量ml/min@7Kpa | 声损@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. XZP-100G20-A
NOTE
(1) Acoustic Response and IP Grade test part dimension: I.D. 2.0 mm / O.D. 6.0 mm.
(2) 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.
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.
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.
Note
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.
All technical information and advice given here is based on ZZPIP’s previous experiences and test results. ZZPIP gives this information to the best of its knowledge, but assumes no legal responsibility. Customers are asked to check the suitability and usability in the specific application, since the performance of the product can only be judged when all necessary operating data are available.