78250JVC-R

Overview

The 78250JVC-R is a surface-mount power transformer from the Murata MAX250 series, designed for use with MAX250 and MAX251 applications. It features a 1:1 turns ratio and an inductance of 2 mH. The component provides 4 kVDC isolation voltage and supports a secondary current rating of 300 mA. Physical dimensions are 9.52 mm in length, 9 mm in width, and 6.35 mm in height. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides high-voltage isolation capability suitable for isolated power conversion topologies.
• Engineered specifically for compatibility with MAX250 and MAX251 controller families.
• Utilizes a compact surface-mount package design for automated assembly integration.

Applications

• Isolated DC-DC converter designs utilizing MAX250 controllers
• Isolated DC-DC converter designs utilizing MAX251 controllers
• Board-level power supply modules requiring galvanic isolation

Procurement Notes

Verify the specific suffix configuration against the original design requirements to ensure correct isolation voltage and mounting style specifications. Confirm that the surface-mount variant aligns with the intended PCB footprint and assembly process capabilities. Cross-reference the manufacturer's latest documentation to validate active status and compliance with current environmental directives before finalizing procurement orders.

Selection Notes

Select this component when designing isolated power stages for MAX250 or MAX251 based systems requiring 4 kVDC isolation. Ensure the 2 mH inductance value meets the circuit's energy storage requirements. Verify that the 300 mA secondary current rating satisfies the load demands. Check that the physical dimensions fit within the available board space constraints.

Part Context

This part belongs to the MAX250 series of dedicated transformers manufactured by Murata Power Solutions. These components are specialized for use with Maxim Integrated (now Analog Devices) switching regulators. The series offers various configurations to support different isolation and mounting needs for industrial and commercial power applications.

Replacement Considerations

Direct substitutes include the 78250JC-R for surface-mount applications and the 78250VC for through-hole implementations. Verify pinout compatibility and electrical parameters before substitution.