YA9034-ALD

Overview

The Coilcraft YA9034-ALD is a surface-mount flyback transformer designed for no-opto isolated DC/DC converters. It features 1500 Vrms isolation and operates at 300 kHz. The component supports input voltages from 4 V to 65 V and provides a 12 V output at 0.5 A, delivering 6 W of power. Key electrical parameters include an inductance of 36 µH at 300 kHz and a turns ratio of 1:0.666. The physical dimensions are approximately 10.20 mm x 9.30 mm with a maximum height of 10.60 mm.

Feature Summary

• Provides galvanic isolation via 1500 Vrms dielectric strength
• Enables simplified control loop design by eliminating optocouplers
• Utilizes ferrite core material for efficient high-frequency operation

Applications

• Flyback converters for Texas Instruments LM5180 controllers
• Flyback converters for Texas Instruments LM25180 controllers
• Isolated DC/DC power supply modules requiring no-opto regulation

Procurement Notes

Verify the specific manufacturer part number against official Coilcraft documentation to confirm pinout configuration and winding polarity. Ensure the selected variant matches the required isolation voltage and power rating for the target application. Cross-reference datasheet specifications for thermal performance and mechanical footprint compatibility before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring isolated power conversion without feedback optocouplers. Confirm compatibility with the intended controller IC, such as the LM5180 or LM25180 series. Evaluate the 6 W power capability and 12 V output requirement against system loads. Verify that the 300 kHz switching frequency aligns with the overall converter design constraints.

Part Context

The YA9034-ALD belongs to the Coilcraft No-Opto Flyback Transformers family. This series is engineered to simplify isolated power supply designs by removing the need for optical feedback components. These transformers are optimized for use with synchronous rectification controllers to achieve high efficiency and compact form factors in modern power electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.