78253/35C

Overview

The Murata Power Solutions Inc. 78253/35C is a specialty power transformer designed for MAX253 compatible converter applications. It features a single primary and single secondary winding configuration with a turns ratio of 1:2.27. The component has an inductance of 380 µH, a DC resistance (DCR) of 1 Ohm, and supports an output current of 100 mA at 5V. It is available in surface mount packaging.

Feature Summary

• Designed specifically for MAX253 compatible converter circuits
• Surface mount package for automated assembly
• Single primary and single secondary winding structure

Applications

• MAX253 compatible DC-DC converter designs
• Power supply modules requiring isolated conversion
• Industrial control system power stages

Procurement Notes

Verify the specific suffix against the manufacturer's latest documentation to confirm availability status and exact physical dimensions. Ensure the selected variant matches the required inductance and DCR specifications for the target MAX253 application circuit.

Selection Notes

Select this component when designing around the MAX253 controller. Confirm that the 380 µH inductance and 1 Ohm DCR align with the efficiency and thermal requirements of the power stage. Check for RoHS compliance if environmental regulations apply to the final product.

Part Context

This part belongs to the 78253 series of specialty transformers from Murata Power Solutions. These components are engineered to interface directly with Maxim Integrated's MAX253 switching regulator controllers, providing the necessary magnetic isolation and voltage transformation for buck or boost topologies.

Replacement Considerations

Consult Murata's official cross-reference data for direct replacements. Variants such as 78253/35JC may offer similar functionality with different mounting styles or minor parameter variations.