SLLC-ETD34-12

Overview

The SLLC-ETD34-12 is a high-frequency resonant transformer from the Signal Transformer SLLC series, designed for AC/DC converters. It features an ETD34 core and operates within a frequency range of 70 kHz to 120 kHz. The device supports a primary voltage of 360 to 400 VDC and provides a 12 VDC output. Key electrical specifications include a primary inductance of 600 µH, an output current capacity of 12.5 A, and a winding resistance of 260 mOhm. It offers 4000 Vrms dielectric strength isolation and is rated for 150 W power handling.

Feature Summary

• Engineered for high-efficiency energy-sensitive resonant converter topologies
• Provides robust 4000 Vrms isolation between primary and secondary circuits
• Utilizes ETD34 core geometry optimized for high-frequency magnetic performance

Applications

• AC/DC Switching Mode Power Supplies (SMPS)
• LED Driver circuits
• Resonant converter systems with 360-400 VDC input

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part number matches the required 12V output variant, as the SLLC series includes multiple voltage options. Ensure compatibility with the intended PCB footprint and thermal management requirements before finalizing procurement orders.

Selection Notes

Select this component when designing resonant converters requiring a 12V output from a 360-400VDC bus. The 600 µH primary inductance and 260 mOhm resistance define the magnetic characteristics. Consider the 70-120 kHz operating range and ETD34 package size relative to board space constraints and thermal dissipation needs.

Part Context

This transformer belongs to the SLLC series by Signal Transformer, specialized for high-frequency resonant applications. The series targets high-efficiency designs using 360-400 VDC inputs. The SLLC-ETD34-12 specifically denotes the 12V output configuration within the ETD34 form factor family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and inductance values if considering alternative manufacturers for the ETD34 resonant transformer category.