Isolated power module provides high efficiency and high protection

The MagI³C-FISM power modules from Würth Elektronik have a new arrival: WPME-FISM ‘Fixed Isolated SIP/SMT Module’ SMT-8 with 3.3V to 5V, rated for 1W POUT. The DC-DC voltage converter with fixed output voltage and integrated switching power stage, transformer, and input and output capacitance is 100% pin-to-pin compatible with the previous MagI³C-FISM. It has enhanced properties: the efficiency goes up to 84%, the ambient temperature range has been increased to 105C, and the isolation voltage is 3kV (for 60 seconds). Like some of its predecessors, this power module provides continuous short-circuit protection.

These power modules have the advantage that no external components are needed for operation, and the effort necessary for circuit design is minimal. Applications for the module include supplying voltages for interfaces and microcontrollers in test and measurement technology or industrial electronics. Thanks to its properties, it serves as simple, functional isolation for overvoltage protection. For example, it prevents ground loops and shifts and interference in the signal path or sensor systems.

The complete product range is UL 62368-1 recognised. The low level of conducted and radiated electromagnetic interference complies with the EN55032 Class B/CISPR-32 standard. The company supplies free samples on request.