SDR1005-681K

Fixed Inductors Overview

The Bourns SDR1005-681K is a surface-mount power inductor from the SDR1005 series, featuring an unshielded drum core and wirewound construction. It provides a nominal inductance of 680 µH with a tolerance of ±10%. The component supports a maximum DC current of 350 mA and has a maximum DC resistance of 2.6 Ohms. Designed for compact electronic applications, it operates within a temperature range of -40°C to +125°C.

Fixed Inductors Feature Summary

• Utilizes an unshielded drum core design for standard electromagnetic performance
• Features wirewound construction suitable for general power filtering
• Supports surface mount technology for automated assembly integration

Fixed Inductors Applications

• General purpose power supply circuits
• DC-DC converter input or output filtering
• Signal processing chokes in low-frequency applications

Fixed Inductors Procurement Notes

Verify the specific manufacturer part number against official Bourns documentation to confirm electrical characteristics. Ensure that the unshielded nature of the component aligns with your system's electromagnetic interference requirements. Confirm package compatibility and thermal ratings prior to finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when a 680 µH inductance value is required with a 350 mA current rating. Consider the unshielded design if space constraints allow for standard magnetic field propagation. Evaluate the 2.6 Ohm DC resistance against your circuit's efficiency targets and thermal management capabilities.

Fixed Inductors Part Context

This component belongs to the SDR1005 series of surface-mount power inductors manufactured by Bourns Inc. The series is characterized by its low profile and wirewound construction, offering reliable performance for various consumer and industrial electronics applications requiring fixed inductance values.

Fixed Inductors Replacement Considerations

Compatible substitutes include other 680 µH unshielded SMD inductors with similar current ratings, such as the SDR1005-681M variant if tolerance differences are acceptable. Verify pinout and physical dimensions before substitution.