78250MC

Overview

The Murata Power Solutions 78250MC is a surface mount power transformer designed for MAX250/MAX251 compatible converter applications. It features an inductance of 2 mH and supports an output current of 300 mA with a DC resistance of 2 Ohm. The component provides isolation voltage of 1500 V and operates within a temperature range of -40 C to +85 C. Dimensions are 9.52 mm length, 9 mm width, and 6.35 mm height.

Feature Summary

• Compatible with Maxim MAX250/MAX251 chipsets for RS232 interface isolation
• Surface mount package with industry-standard pinout
• Provides electrical isolation between primary and secondary circuits

Applications

• RS232 interface isolation in communication equipment
• MAX250/MAX251 based converter designs
• Industrial control systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix and revision level against the latest official datasheet to ensure compatibility with target MAX250/MAX251 implementations. Confirm that the surface mount footprint matches the PCB design requirements. Check RoHS compliance status and environmental certifications relevant to the deployment region. Ensure the operating temperature range meets the system's thermal constraints.

Selection Notes

Select this component when designing circuits utilizing MAX250 or MAX251 transceivers requiring isolated power conversion. The surface mount format suits automated assembly processes. Verify that the 2 mH inductance and 300 mA current rating align with the power budget. Consider the 1500 V isolation voltage for safety requirements in the specific application environment.

Part Context

This part belongs to the 78250 series of power transformers manufactured by Murata Power Solutions. The series includes through-hole and surface mount variants optimized for MAX250/MAX251 applications. These components are engineered to provide consistent performance through controlled winding ratios, ensuring reliable isolation for serial communication interfaces.

Replacement Considerations

Direct substitutes include the 78250JC-R variant. Verify mechanical footprint and electrical specifications before substitution. Other series members may require circuit adjustments due to differing mounting styles or electrical characteristics.