B78302A2401A003

Switching Converter, SMPS Transformers Overview

The B78302A2401A003 is a surface-mount transformer from the B78302A series, manufactured by EPCOS (TDK Electronics). It utilizes an innovative E5 magnetic core and features reverse-wound shielding to enhance interference suppression. The component provides an inductance value of 2 mH with a turns ratio ranging between 1:1:10.8 and 1:1:15.3 depending on the specific type within the series. Designed for frequencies between 50 kHz and 300 kHz, it operates within a temperature range of -40°C to +125°C. The physical dimensions are compact at 8.1 mm x 7.0 mm x 7.0 mm. It complies with AEC-Q200 standards.

Switching Converter, SMPS Transformers Feature Summary

• Reverse-wound shielding design for improved interference suppression
• Compact SMD form factor utilizing E5 magnetic core technology
• Compliance with automotive reliability standards (AEC-Q200)
• Optimized impedance matching for driver ICs and transducers

Switching Converter, SMPS Transformers Applications

• Parking assistance systems
• Industrial robotics
• Unmanned aerial vehicles (drones) and logistics robots
• Automated guided vehicles (AGV)
• Liquid level measurement systems

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet version for the B78302A series to confirm exact electrical tolerances and pin configurations. Ensure compatibility with the target operating frequency range of 50 kHz to 300 kHz. Confirm that the reverse-wound shielding meets the electromagnetic interference requirements of the application. Check for AEC-Q200 certification if used in automotive contexts. Validate mechanical fit within the 8.1 mm x 7.0 mm x 7.0 mm envelope.

Switching Converter, SMPS Transformers Selection Notes

Select this component when impedance matching between a driver IC and an ultrasonic transmitter or receiver is required. Choose based on the specific inductance needs (2 mH vs 4 mH variants) and the appropriate turns ratio for the signal path. Consider the E5 core size for space-constrained designs. Ensure the operating environment falls within the specified -40°C to +125°C range. Verify suitability for high-frequency applications up to 300 kHz.

Switching Converter, SMPS Transformers Part Context

This part belongs to the B78302A series of SMD transformers designed specifically for ultrasonic applications. The series includes multiple types with varying inductance values (2 mH and 4 mH) and turns ratios. These components are engineered to provide optimal performance in ultrasonic sensing and actuation circuits, leveraging advanced core materials and winding techniques for efficiency and noise reduction.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes within the B78302A series include B78302A2402A003 (3 mH) and B78302A2403A003 (4 mH), provided the turns ratio and inductance requirements align. Other B78302 variants may be considered if electrical parameters match. Cross-referencing with generic ultrasonic transformers requires careful verification of frequency response and shielding characteristics.