The PSOT15KCA/36KCA is a common-cathode dual line transient voltage protector. The series is suitable for RS-232, RS-422 and 423 data lines, sensor I/O ports, industrial control and monitoring systems, and 12 and 33 volts DC power protection. The series can be utilized as a two-line unidirectional common-mode or a single bi-directional differential-mode protector, and is available in 15 or 36 volts. Peak pulse power rating is 300 watts (8/20 μs waveform).