1812PS-333JRC

Fixed Inductors Overview

The Coilcraft 1812PS-333JRC is a shielded surface-mount power inductor from the 1812PS series, designed for high-current applications. It features a ceramic-ferrite core and offers an inductance of 33 µH with a tolerance of ±5%. The component supports a maximum DC current of 1.1 A and has a maximum DC resistance of 400 mΩ. Key electrical parameters include a saturation current of 460 mA, a minimum Q factor of 40, and a self-resonant frequency of 120 MHz. It operates within a temperature range of -40°C to +105°C.

Fixed Inductors Feature Summary

• Semi-shielded construction utilizing a ceramic-ferrite core to minimize electromagnetic interference.
• High self-resonant frequency capability suitable for RF and high-frequency switching circuits.
• Robust current handling performance relative to its compact 1812 package size.

Fixed Inductors Applications

• High current power supply filtering
• RF choke applications
• DC-DC converter output stages

Fixed Inductors Procurement Notes

Verify RoHS compliance status and termination plating specifications against the latest manufacturer datasheet before integration. Confirm availability through authorized distributors as supply constraints may apply. Ensure storage conditions remain within specified ambient temperature limits to maintain component integrity.

Fixed Inductors Selection Notes

Select this component when high self-resonant frequency and moderate inductance are required in a small footprint. Compare saturation current ratings against peak load requirements to ensure stable operation. Evaluate thermal derating curves if operating near maximum temperature limits.

Fixed Inductors Part Context

This part belongs to the Coilcraft 1812PS series, which specializes in shielded power inductors with exceptionally high self-resonant frequencies. The series utilizes unique construction techniques to achieve tight tolerances and high current density within standard SMD packages, distinguishing it from general-purpose unshielded variants.

Fixed Inductors Replacement Considerations

Direct substitutes include other 1812PS series variants such as 1812PS-333JLC or 1812PS-333JLB, provided their specific current and resistance ratings align with circuit requirements. Verify that any replacement maintains the same shielding type and core material characteristics.