DA2304-ALD

Overview

The DA2304-ALD is a surface-mount power transformer from Coilcraft designed for isolated DC-DC converter applications. It features a primary voltage of 3.3 V and a secondary voltage of 6 V, supporting a calculated output power of 7.2 W at an operating frequency of 500 kHz. The component has a turns ratio of 1:2.2, minimum inductance of 17.8 µH, and maximum isolation voltage of 2500 Vrms. Primary DCR is 0.086 Ω with leakage inductance max of 0.43 µH.

Feature Summary

• Provides galvanic isolation between primary and secondary circuits via high-voltage insulation barrier
• Optimized for synchronous rectification topologies in compact power supply designs
• Surface-mount construction facilitates automated assembly and space-constrained layouts

Applications

• Isolated DC-DC converters using Texas Instruments SN6501 controllers
• Power supplies requiring 3.3 V input to 6 V isolated output conversion
• Industrial control systems needing reliable signal isolation

Procurement Notes

Verify the specific suffix ALD matches your required packaging configuration before ordering. Confirm that the 3.3 V primary specification aligns with your system's input voltage rails. Ensure compatibility with 500 kHz switching frequencies during design validation. Cross-reference datasheet electrical limits against actual thermal conditions.

Selection Notes

Select this part when a 3.3 V input and 6 V isolated output are required. Compare leakage inductance and DCR values against efficiency targets. Verify footprint dimensions against PCB layout constraints. Consider thermal performance under continuous load conditions relative to ambient temperature ratings.

Part Context

This component belongs to Coilcraft’s family of surface-mount power transformers. These devices support flyback and forward converter architectures. They provide electrical isolation while transferring energy between circuits. The series offers standardized footprints for easy integration into existing power management designs.

Replacement Considerations

The DA2303-ALD serves as a public substitute offering similar power handling but with different voltage ratios (5 V primary to 6 V secondary). Verify turns ratio and inductance differences impact your specific circuit topology before substitution.