S1008R-821K

Fixed Inductors Overview

The S1008R-821K is a shielded surface-mount RF inductor from the S1008R series, manufactured by API Delevan. It features an 820 nH nominal inductance with a ±10% tolerance and a ferrite core. The component supports a maximum DC current of 715 mA and has a maximum DC resistance of 220 mΩ. It exhibits a Q factor of 40 at 25 MHz and a self-resonant frequency of 140 MHz. Designed for operation between -55°C and +125°C, it utilizes a 1008 (2520 metric) package measuring 2.92 mm x 2.66 mm x 2.41 mm.

Fixed Inductors Feature Summary

• Shielded construction minimizes electromagnetic interference coupling with adjacent circuit components.
• Ferrite core material provides stable inductance characteristics across the specified operating temperature range.
• Surface-mount design facilitates automated PCB assembly processes.

Fixed Inductors Applications

• RF choke circuits
• Filter networks
• Impedance matching networks

Fixed Inductors Procurement Notes

Verify that the specific order matches the manufacturer part number S1008R-821K to ensure correct inductance and tolerance specifications. Confirm package dimensions align with the PCB footprint requirements. Check RoHS compliance status if restricted substances are prohibited in the application environment. Ensure storage conditions maintain moisture sensitivity level ratings prior to soldering.

Fixed Inductors Selection Notes

Select this component when a shielded inductor is required to prevent magnetic field interaction in dense layouts. The 1008 package size offers a balance between current handling capability and board space efficiency. Verify that the 715 mA saturation current meets the peak load requirements of the target circuit. Consider the 140 MHz self-resonant frequency limit to ensure effective performance at the intended operating frequency.

Fixed Inductors Part Context

This component belongs to the S1008R series of fixed RF inductors produced by API Delevan. The series includes various inductance values within the same 1008 physical footprint, allowing designers to standardize on a single package size while adjusting electrical parameters. The 'R' suffix typically denotes the shielded variant within this product line.

Fixed Inductors Replacement Considerations

S1008R-101K shares the same 1008 package and shielding but differs in inductance value.