Samlex 100W Fully Isolated DC-DC Converter - 8A - 20-35V Input - 12.5V Output

The Samlex 100W Fully Isolated DC-DC Converter (model IDC-100B-12) is a precision power regulation system engineered for automotive and mobile applications requiring galvanic isolation between input and output circuits. This isolated DC-DC converter delivers a highly regulated 12.5-volt output from a 20–35-volt input range, with a maximum output capacity of 8 amps at 35-volt input—delivering 100 watts of stable power for demanding electrical loads.

Galvanic isolation protects sensitive electronics by breaking direct electrical paths between input and output, preventing ground loops and transient voltage spikes that can damage modern vehicle computer systems, communication modules, or auxiliary equipment. The wide input voltage range (20–35V) accommodates 24-volt systems, dual-battery installations, solar charging arrays, and vehicles operating across varying electrical conditions. The regulated 12.5-volt output maintains device compatibility and signal integrity even when primary system voltage fluctuates. At 1.2 lbs and compact dimensions (4 × 2 × 6 inches), this converter integrates easily into engine bays, auxiliary power boxes, or mounting brackets without adding substantial weight or complexity.

This converter is ideal for vehicle integrators upgrading auxiliary 12-volt networks while maintaining isolation from the primary charging system. Common applications include powering backup lighting systems, running GPS trackers or communications equipment in dual-battery rigs, operating auxiliary winches or compressors on off-road vehicles, and supplying isolated power to aftermarket dash cameras or telematics modules. The isolation topology also serves marine, RV, and emergency-response applications where multiple voltage sources must coexist without interfering with each other.

Isolated DC-DC converters represent the professional standard in power distribution for complex vehicle electrical systems. Unlike basic buck-converters, isolation prevents catastrophic ground faults and simplifies multi-source power architecture, making the Samlex IDC-100B-12 the choice for precision integrators and systems requiring long-term reliability under variable electrical conditions.