SM91208L-E

Power Transformers Overview

The SM91208L-E is a board-mount push-pull power transformer designed for isolated power supplies. It accepts a 12 V input and provides a 15 V output with a current rating of 500 mA. The component operates at a frequency of 410 kHz and features a compact surface mount footprint measuring 13.2 x 11.8 x 11.6 mm. It offers functional insulation with a working voltage of up to 400 V DC and withstands isolation voltages up to 2,500 V AC. The device supports an extended operating temperature range from -40°C to +125°C.

Power Transformers Feature Summary

• Designed specifically for use with Texas Instruments SN6507 controllers
• Provides high-voltage isolation with 2,500 V AC withstand capability
• Complies with IEC/UL 62368-1 safety standards
• Supports multiple turns ratio configurations

Power Transformers Applications

• Motor drivers including IGBT and SiC gate driver power supplies
• Industrial communication interfaces such as CAN, RS-485, RS-422, RS-232, SPI, I2C, and low-power LAN
• Photovoltaic inverters and protection relays
• Factory automation systems
• Low or medium risk medical equipment

Power Transformers Procurement Notes

Verify the specific suffix 'E' to confirm the package and tape/reel configuration matches your assembly requirements. Confirm that the 12 V input specification aligns with your system design. Ensure the 500 mA output current meets load demands. Check for RoHS compliance status in the official datasheet before finalizing procurement decisions.

Power Transformers Selection Notes

Select this component when a 12 V to 15 V conversion is required for isolated applications. It is optimized for integration with SN6507-based circuits. Consider the 410 kHz operating frequency for magnetic design compatibility. The extended temperature range suits harsh industrial environments. Verify physical dimensions fit within the available PCB space constraints.

Power Transformers Part Context

This part belongs to the SM91207L and SM91208L series of push-pull isolation power transformers by Bourns Magnetics. These components are engineered for compact, high-voltage isolated power solutions. The series supports various communication protocols and industrial control applications. They are distinct from general-purpose signal transformers due to their power handling capabilities.

Power Transformers Replacement Considerations

The SM91207L-E serves as a variant within the same family but utilizes a 24 V input instead of 12 V. Direct substitution requires verifying input voltage compatibility. No other cross-model substitutes are confirmed in public documentation.