SMT45A-103

Arrays, Signal Transformers Overview

The SMT45A-103 is an unshielded dual-coil surface mount inductor array manufactured by Gowanda Electronics. It features a nominal inductance of 100 µH per coil, with a total series inductance of 400 µH and parallel inductance of 100 µH. The component has a maximum DC resistance (DCR) of 0.201 Ω and supports a current rating of 1.37 A. Designed for PCB mounting, it utilizes SMD/SMT termination styles and is classified as a power inductor suitable for RF applications.

Arrays, Signal Transformers Feature Summary

• Dual-wound toroidal construction providing independent coil functionality within a single package
• Unshielded design optimized for specific magnetic field requirements
• Surface mount technology compatible for automated PCB assembly processes

Arrays, Signal Transformers Applications

• RF circuit filtering and signal conditioning
• Power supply input/output filtering stages
• General-purpose signal processing arrays

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix designation when ordering, as the base model may be available in lead-free variants such as SMT45A-103LF. Confirm RoHS compliance status and moisture sensitivity level requirements against your manufacturing standards. Ensure the unshielded nature aligns with your board layout to prevent unintended electromagnetic interference with adjacent components.

Arrays, Signal Transformers Selection Notes

Select this component when a compact dual-inductor solution is required for space-constrained designs. The 100 µH value offers a balance between impedance and physical size. Consider the 1.37 A current rating to ensure adequate headroom for peak load conditions. The unshielded type is preferred where magnetic coupling with other components is acceptable or desired.

Arrays, Signal Transformers Part Context

This part belongs to the SMT45A series of dual-wound toroidal inductors from Gowanda Electronics. The series includes various inductance values and tolerance options, catering to diverse RF and power applications. These components are known for their precision engineering and reliability in OEM electronic markets, offering consistent performance across temperature ranges.

Arrays, Signal Transformers Replacement Considerations

Direct substitutes include the SMT45A-103LF variant, which maintains identical electrical characteristics but complies with lead-free manufacturing standards. Cross-referencing with other Gowanda SMT45A models requires verifying matching inductance, DCR, and current ratings to ensure functional equivalence.