... ,10,50,120 kHZ 3.150-250v AC Data Telephone Line Filter Features:< 1amp .150-250vac. Passing frequency: 3,4 khz ... Different case size and models are availableApplications:The data telephone line filter can be used for datatransfer units, measure and test ... , laboratories, telecommunication. Customer's satisfaction is our companys' ever lasting goal. We hope our honest policy and quality goods will be ...