RAC04-12DC/277 AC/DC CONV 4W 80-305VAC +/-12VDC +/-166mA The RAC04-12DC/277 is a high-quality product offering AC/DC CONV 4W 80-305VAC +/-12VDC +/-166mA. With a shrink ratio of N/A and N/A operating temperature, it provides reliability in various applications.