Overview:
Rapid environmental changes can lead to pressure differentials between inside and outside of an electronic device, when a device experiences temperature or altitude changes, a pressure differential between the external environment and the interior of the device can occur. This pressure differential can weaken the gaskets and seals within the device and eventually leads to lower resistance to liquid penetration, this also creates transducer bias, compromising acoustic performance.
Microvent® Pressure Vents provide superb reliability through exceptional balance of airflow and water protection.
Applications for Dust and Splash Protection Acoustic vents:
Ideal for protecting portable electronic devices against rapid pressure changes without compromising on liquid and particulate protection.
Smartphones and Feature Phones
Action Cameras
Smartwatches or other Wearables
Earphones
Smart Speakers and Home Devices
Two-way Radios
Pressure Vents Membrane Model Comparison:
| Membrane Model: | MV-900L | MV-878W | MV-302W | MV-872 | MV-576 | MV-657 | MV-FWS(50M) |
| Application: | Smartphones, Two-Way radios, Scanners | Wearables |
| IP rating: | IP67, IP68 | IP65 | IP68 | IP67 | IP67 | IP67 | IP68 |
| ISO Rating: (ISO 22810) | N/A | N/A | N/A | N/A | N/A | N/A | 50m water@10 min |
| Typical airflow (dp = 70 mbar) | 10,000 ml/min/cm
2 | 5,000 ml/min/cm
2 | 3,400ml/min/cm
2 | 3,000ml/min/cm
2 | 1500ml/min/cm
2 | 350ml/min/cm2 | 380ml/min/cm2 |
| Membrane type: | ePTFE |
| Membrane Color: | Black | White | White | Black | White | White | White |
| Membrane Thickness: | 0.01mm | 0.13 mm | 0.02 mm | 0.13 mm | 0.15 mm | 0.08 mm | 0.01 mm |
| Support Material: | PET Non-woven |
| Adhesive temperature range: | -50 °C to 100 °C |
