B78302A2402A003

Switching Converter, SMPS Transformers Overview

The B78302A2402A003 is an SMD transformer from the EPCOS E5 series, designed for ultrasonic sensor applications. It features a compact footprint of 8.1 mm x 7.0 mm x 7.0 mm and utilizes reverse-wound shielding to enhance electromagnetic compatibility (EMC). The component operates within a frequency range of 50 kHz to 300 kHz and supports an ambient temperature range of -40°C to +125°C. It carries AEC-Q200 qualification, ensuring reliability in automotive environments. This transformer facilitates optimal impedance matching between driver ICs and ultrasonic transducers or receivers.

Switching Converter, SMPS Transformers Feature Summary

• Reverse-wound shielding design for optimized EMC behavior
• Compact E5 core construction suitable for space-constrained layouts
• AEC-Q200 qualified for automotive-grade reliability

Switching Converter, SMPS Transformers Applications

• Parking assistance systems
• Industrial robotics
• Unmanned aerial vehicles (UAVs)
• Automated guided vehicles (AGVs)

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturing updates may occur. Confirm that the reverse-wound shielding configuration matches the intended PCB layout requirements. Ensure the operating environment stays within the specified -40°C to +125°C range to maintain performance integrity. Check for any recent RoHS or REACH compliance declarations relevant to the production batch.

Switching Converter, SMPS Transformers Selection Notes

Select this component when high-frequency impedance matching is required for ultrasonic sensing circuits. The E5 core technology offers a balance between size reduction and magnetic performance. Consider the 50 kHz to 300 kHz operational bandwidth when designing the driving signal. The AEC-Q200 status makes it suitable for automotive integration where strict quality standards apply.

Switching Converter, SMPS Transformers Part Context

This part belongs to the B78302A series of SMD transformers specifically engineered for ultrasonic applications. The series includes variants with different inductance values, such as 2 mH and 4 mH options, alongside the 3 mH specification of this model. These components are manufactured by TDK Electronics, formerly known as EPCOS, which continues to provide these specialized magnetic solutions.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes include other models within the B78302A series, such as B78302A2401A003 (2 mH) or B78302A2403A003 (4 mH), provided the inductance difference is acceptable for the circuit design. Verify pinout compatibility and physical dimensions before substitution.