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China e-PTFE Hydrophobic Acoustic Transmission Membrane Suppliers and Factory - High-Quality Sound Solutions
Membrane Properties
| Physical Properties | Referred Test Standard | Unit | Typical Data |
|---|---|---|---|
| Membrane Color | / | / | Grey / 灰 |
| Membrane Construction | / | / | ePTFE |
| Membrane Surface Property | / | / | Hydrophobic |
| Thickness | ISO 534 | mm | 0.01±0.005 |
| Air Permeability | ASTM D737 (测试面积：1 cm²) |
ml/min/cm²@7KPa | >5000 |
| Water Entry Pressure | ASTM D751 (测试面积：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 (2m水深测试30分钟) |
| 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 |
Transmission Loss Curve
Transmission Loss of ZZPIP-100G20 acoustics membrane < 1dB @ 1KHz, and < 2.5 dB in the whole frequency range.
AYN-100G20-A
AYN-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.
Frequently Asked Questions (FAQ)
What is the typical transmission loss of the ZZPIP-100G20 acoustic membrane?
The transmission loss is less than 1dB at 1KHz, and remains under 2.5 dB across the entire frequency range.
What are the primary applications for this series of membranes?
These membranes are designed for portable and wearable electronic devices such as Smart Phones, Earphones, Smart Watches, Bluetooth Speakers, and Alertors to provide waterproof protection and minimal sound transmission loss.
What is the IP rating and water resistance capacity of this membrane?
It meets IP67/IP68 standards, which includes passing a water resistance test at a depth of 2 meters for 30 minutes.
What is the shelf life and recommended storage environment?
The shelf life is 5 years from the date of receipt, provided the product is kept in its original packaging and stored below 80°F (27°C) with a relative humidity (RH) of 60%.
What are the operating temperature limits for the membrane?
The membrane has a wide operating temperature range from -40°C to 260°C.
Are these materials compliant with environmental standards like RoHS?
Yes, the membrane meets all RoHS requirements and is completely PFOA & PFOS free.