Isolated Module DC DC Converter 1 Output 9V 111mA 10.8V - 13.2V Input
The RO-1209S is a compact, isolated 1W DC-DC converter module from the ECONOLINE RO series, designed to convert a nominal 12V DC input into a regulated 9V DC isolated output. Housed in a SIP-4 through-hole package, it provides galvanic isolation of up to 1kVDC between input and output, making it suitable for industrial, instrumentation, telecommunications, and general-purpose power isolation applications. The module features a wide operating temperature range and fully encapsulated construction for enhanced reliability.
Key Features
1W isolated DC-DC converter
Nominal 12V DC input voltage
Single 9V DC output
1kVDC input-to-output isolation
Compact SIP-4 through-hole package
Fully encapsulated design for improved reliability
Industrial operating temperature range: -40°C to +85°C
Up to 80–85% efficiency
Industry-standard pinout
Suitable for power isolation and voltage conversion applications
UL94V-0 package material
Optional short-circuit protection variants available
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