Technical Specifications
Typical airflow is measured at 2.96 liters per minute with a differential pressure of 10 kPa. The opening pressure can be customized, with a standard setting of 20 kPa ± 5 kPa. Degassing or venting airflow is 20 liters per second at 300 mbar.

Environmental Performance
The product meets IEC529, 2nd edition, with protection classes IP67 and IP69K. It is heat resistant from -40°C to +150°C according to IEC60068-2-1,2,14 standards. Humidity testing follows IEC600-2-78, withstanding 85% humidity at 85°C for 1000 hours. It also passes humidity freeze-high temperature and hail impact tests.

Components and Materials
The part number MIV-43EX-MPS includes an aluminum housing, micro membrane, silicone O-ring, and is available in silver color. The mounting hole size is 26.3 mm, and it is sold in units of 100. The MIV-43EX-MSUS is made of SUS material.

Product Features
The MIV SERIES Ventilation Parts are designed for metal battery pack vent valves. They maintain high airflow in large battery packs, equalize pressure, and reduce condensation by allowing air to flow freely in and out of sealed enclosures. The design is simple and flat, suitable for any type of enclosure. The valve can be reopened to release overpressure and continues venting under normal pressure changes while remaining waterproof at IP67 standards. It is effective for outdoor use when installed on the side or top face of enclosures.

Application
These components are ideal for battery pack applications, ensuring reliable performance in tough environments.