SIT1253I

Overview

The SIT1253I is a flexible DC-DC transformer designed for switched-mode power supplies and DC/DC converters. It features an inductance of 50µH at 100kHz, a power rating of 1.3W, and operates within a temperature range of -40°C to 105°C. The component utilizes surface mount technology with dimensions of 26.50mm x 23.50mm x 16.50mm maximum height. It includes isolation capabilities and is specifically engineered for use with SCALE-iDriver integrated circuits.

Feature Summary

• Designed for flexible DC-DC converter applications
• Engineered for integration with SCALE-iDriver ICs
• Provides electrical isolation for switched-mode power supplies

Applications

• Switched-mode power supply (SMPS) designs
• DC/DC converter circuits
• SCALE-iDriver based gate drive systems

Procurement Notes

Verify current availability status as the part is listed as discontinued by the manufacturer. Confirm that existing stock levels are sufficient for production needs since no new units will be stocked once inventory is depleted. Check for valid RoHS3 compliance documentation if required for specific regulatory standards.

Selection Notes

Select this component only when compatibility with Power Integrations SCALE-iDriver family is required. Ensure the design accommodates the specified 1.3W power rating and 50µH inductance at 100kHz. Verify that the surface mount footprint matches the PCB layout constraints for the 26.50mm x 23.50mm package size.

Part Context

This component belongs to the SIT12xxI family of transformers from Power Integrations. These parts are specialized magnetics intended for high-performance gate drive applications. The series focuses on providing reliable isolation and energy transfer for digital control interfaces in power electronics.

Replacement Considerations

No public confirmed substitute part numbers are available. As the part is discontinued, alternative solutions require redesigning the circuit or sourcing remaining inventory from authorized distributors.