B78308A2461A003

Switching Converter, SMPS Transformers Overview

The B78308A2461A003 is a surface-mount flyback transformer designed for DC/DC converters. It features an inductance of 4.1 µH and supports a working voltage of 1000 V DC with a transient overvoltage rating of 2500 V peak. The component provides reinforced insulation suitable for high-altitude operation up to 5000 m, classified under P2 and CTI IIIa standards. It operates within a temperature range of -40°C to +125°C and utilizes a compact SMD package.

Switching Converter, SMPS Transformers Feature Summary

• Provides reinforced insulation for safety-critical applications
• Optimized for gate-drive and isolated power conversion
• Designed for high-voltage DC/DC converter topologies

Switching Converter, SMPS Transformers Applications

• Automotive gate-drive transformers
• Isolated DC/DC converter modules
• High-voltage power supply circuits

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific suffix 'A003' against the manufacturer's current datasheet to confirm pinout and insulation class compatibility. Ensure the selected variant meets the required creepage and clearance distances for your specific altitude and pollution degree environment. Cross-reference the package dimensions with your PCB footprint to guarantee mechanical fit during assembly.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing isolated power stages requiring robust dielectric strength and compact form factors. Consider the thermal performance limits relative to the expected load current and ambient conditions. Validate that the 1000 V DC working voltage aligns with the system's maximum operating potential and transient requirements without exceeding the insulation ratings.

Switching Converter, SMPS Transformers Part Context

This part belongs to the B78308 series of SMD transformers from TDK Electronics, formerly EPCOS. The series is engineered for high-reliability applications, particularly in automotive and industrial sectors where space constraints and electrical isolation are critical. These components support modern switching power supplies by providing efficient magnetic coupling with minimal leakage inductance.

Switching Converter, SMPS Transformers Replacement Considerations

Consult official substitution lists for compatible variants within the B78308 family. Verify that alternative part numbers match the 4.1 µH inductance and 1000 V DC insulation specifications. Ensure any substitute maintains the same package dimensions and winding configuration to preserve circuit functionality.