78253/55JVC

Overview

The Murata 78253/55JVC is a surface-mount power transformer designed for the MAX253 controller. It features an inductance of 240 µH and a turns ratio of 1:1.33. The component measures 9.00 mm x 9.52 mm with a maximum height of 6.35 mm. It supports 4 kVDC isolation and operates within a temperature range of -40°C to +85°C. Packaged in tubes, it complies with RoHS3 standards.

Feature Summary

• Optimized magnetic design specifically for MAX253 integrated circuits
• Provides robust electrical isolation for compact power supply applications
• Surface-mount construction facilitates automated PCB assembly processes

Applications

• Compact AC-DC power adapters
• Low-power isolated DC-DC converters
• Medical equipment power supplies
• Industrial control system interfaces

Procurement Notes

Verify the specific suffix against official documentation to confirm functional differences. Ensure the selected variant matches the required isolation voltage and inductance specifications for the target MAX253 application. Confirm package type availability aligns with manufacturing requirements.

Selection Notes

Select this component when designing with the MAX253 controller requiring a 1:1.33 turns ratio. Consider the 240 µH inductance value for appropriate energy storage. Evaluate the 4 kVDC isolation rating against safety regulations. Compare physical dimensions against available board space constraints.

Part Context

This part belongs to the 78253 series of specialized transformers manufactured by Murata Power Solutions. These components are engineered to complement specific switching controllers, ensuring optimal performance in small form factor power conversion systems.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.