SMT35A-181LF

Arrays, Signal Transformers Overview

The SMT35A-181LF is an unshielded dual-wound toroidal inductor array manufactured by Gowanda Electronics. It features a non-standard surface-mount package measuring 13 mm by 9.95 mm with a height of 7.7 mm. The component provides configurable inductance options: 7.2 µH when coils are connected in series, and 1.8 µH when connected in parallel. It exhibits a DC resistance (DCR) of 7.7 mΩ in the parallel configuration. The device is designed for high-efficiency applications and complies with RoHS3 standards.

Arrays, Signal Transformers Feature Summary

• Dual-wound toroidal core construction for high efficiency
• Configurable inductance via series or parallel coil connection
• Unshielded design suitable for specific layout requirements
• Surface-mount technology compatible form factor

Arrays, Signal Transformers Applications

• High-efficiency power filtering circuits
• Signal processing arrays requiring variable inductance
• Space-constrained surface-mount designs

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix LF to confirm lead-free compliance status. Confirm the required inductance configuration (series vs. parallel) matches the circuit design before ordering. Ensure the unshielded nature does not interfere with nearby sensitive components due to potential magnetic field exposure. Check moisture sensitivity level ratings if reflow soldering processes are utilized.

Arrays, Signal Transformers Selection Notes

Select this component when a dual-coil inductor array with configurable inductance is required. The 1.8 µH parallel option suits lower inductance needs, while the 7.2 µH series option serves higher requirements. Consider the physical dimensions of 13 x 9.95 mm for PCB footprint compatibility. The low DCR supports high-current applications effectively.

Arrays, Signal Transformers Part Context

This part belongs to the SMT35A series of high-efficiency dual-wound toroidal inductors from Gowanda Electronics. The series offers various inductance values and configurations for surface-mount applications. The SMT35A-181LF specifically denotes the 1.8 µH/7.2 µH variant within this product line, distinguished by its non-standard package size and unshielded construction.

Arrays, Signal Transformers Replacement Considerations

Direct substitutes may include other SMT35A series variants with different inductance values if electrical parameters differ. Verify pinout and mechanical dimensions against alternative manufacturers' dual-wound toroidal arrays. No identical cross-brand replacements are confirmed in public documentation.