SDQ12-820-R

Arrays, Signal Transformers Overview

The SDQ12-820-R is a coupled inductor from Eaton Electronics, designed for surface-mount technology. It features an inductance of 82 µH with a tolerance of ±20%. The component has a maximum DC current rating of 0.334 A and a series DC resistance of 10.49 Ohms. In parallel configuration, the DC resistance is 2.62 Ohms. This device is suitable for applications requiring compact magnetic components with specific coupling characteristics.

Arrays, Signal Transformers Feature Summary

• Dual-coil coupled inductor architecture
• Surface-mount package design
• High DC resistance values for series and parallel configurations

Arrays, Signal Transformers Applications

• Power supply filtering
• DC-DC converter circuits
• Signal processing stages

Arrays, Signal Transformers Procurement Notes

Verify the exact datasheet version to confirm electrical parameters, as coupled inductors may have multiple pinout or tolerance variations. Ensure the PCB footprint matches the manufacturer's recommended land pattern. Check for RoHS compliance status if required by your manufacturing standards. Confirm availability through authorized distributors to avoid counterfeit parts.

Arrays, Signal Transformers Selection Notes

Select this component when a coupled inductor with 82 µH nominal inductance is required. Consider the high DC resistance (10.49 Ohms series) which impacts power loss. Evaluate the 0.334 A current rating against your circuit's peak and RMS currents. Compare physical dimensions against available board space constraints.

Arrays, Signal Transformers Part Context

This part belongs to Eaton's coupled inductor lineup, distinct from their single-winding power inductors like the SDCH series. Coupled inductors are often used in multiphase converters or specialized filter topologies where magnetic coupling between windings is utilized for noise cancellation or voltage multiplication.

Arrays, Signal Transformers Replacement Considerations

Direct substitutes must match the 82 µH inductance, dual-coil structure, and similar current ratings. Verify pin compatibility and thermal performance. No specific cross-reference part numbers are confirmed in the provided data.