7427934

Overview

The Würth Elektronik WE-TPC T1 Shielded SMT Power Transformer, part number 7427934, is designed for isolated DC/DC converter applications. It features a single primary winding and two secondary windings with a center tap configuration. The device operates at a switching frequency of 500 kHz and provides galvanic isolation between the primary and secondary circuits. Key electrical specifications include a primary inductance of 18 µH ±20% measured at 100 kHz. The transformer supports an input voltage range up to 48 V and delivers output currents suitable for point-of-load modules.

Feature Summary

• Integrated magnetic shielding reduces electromagnetic interference emissions.
• Center-tapped secondary winding architecture facilitates full-bridge or push-pull topologies.
• Surface-mount package enables automated assembly and compact board layouts.

Applications

• Isolated DC/DC converter modules
• Point-of-load power supplies
• Telecommunications equipment power stages

Procurement Notes

Verify the complete order code against the manufacturer's current datasheet to ensure compatibility with specific thermal and electrical requirements. Confirm that the component meets all relevant safety certifications required for your final application environment. Cross-reference pinout configurations with your PCB design to prevent installation errors during assembly.

Selection Notes

Select this component when designing isolated converters requiring high-frequency operation around 500 kHz. Ensure the chosen topology matches the center-tapped secondary structure. Evaluate thermal performance constraints based on the specified inductance and saturation current limits provided in the official documentation.

Part Context

This component belongs to the WE-TPC T1 series of shielded power transformers from Würth Elektronik. The series is engineered for high-efficiency power conversion systems where size reduction and EMI suppression are critical. It complements other magnetics in the portfolio by offering standardized footprints for common converter architectures.

Replacement Considerations

Consult the manufacturer's substitution guide for direct equivalents. Verify that any alternative part matches the 18 µH primary inductance and 500 kHz operating frequency. Ensure physical dimensions and pin assignments remain compatible with existing board designs.

FAQ

What is the primary inductance value?

The primary inductance is 18 µH with a tolerance of ±20%, measured at 100 kHz.

Does this transformer have magnetic shielding?

Yes, the WE-TPC T1 series features integrated magnetic shielding to minimize external electromagnetic interference.