China e-PTFE Hydrophobic Acoustic Transmission Membrane - Leading Suppliers and Factory Solutions
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 (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 | Internal Control (@1kHz, I.D. = 2.0mm) |
dB | < 1 dB |
| IP Rating | IEC 60529 (Test I.D. = 2.0mm) |
/ | IP67 / IP68 (2m depth test for 30 minutes) |
| ISO Rating | ISO 22810 (Test I.D. = 2.0mm) |
/ | 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 |
Transmission Loss Curve
Transmission Loss of ZZPIP-100G20 acoustics membrane < 1dB @ 1KHz, and < 2.5 dB in the whole frequency range.
AYN-100G20-A
(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.
Applications
This series of membranes can be used as waterproof and acoustic membranes for portable and wearable electronic devices, such as Smartphones, Earphones, Smartwatches, Bluetooth Speakers, and Alarms (Alertors), etc.
The membrane provides the device with immersed waterproof protection and minimal sound transmission loss, maintaining excellent acoustic transmission performance.
Shelf Life
Shelf life is 5 years from the date of receipt for this product, as long as it is stored in its original packaging in an environment below 80°F (27°C) and 60% RH.
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.