RAC04-3.3SA/277 AC/DC CONV 4W 90-305VAC 3.3VDC 1.2A The RAC04-3.3SA/277 is a high-quality product offering AC/DC CONV 4W 90-305VAC 3.3VDC 1.2A. With a shrink ratio of N/A and N/A operating temperature, it provides reliability in various applications.