The PCSA1-S unregulated dc-dc converter series is a family of low cost 1 W isolated modules offering efficiency up to 82% and 1,000 Vdc isolation. Housed in a compact 4 pin SIP package and featuring a -40 to +100°C operating temperature range, these low power dc-dc converters are ideal for conversion and isolation of dc rails within a range of industrial, telecom, security, and machine control applications.