FI105L186822-T

Overview

The FI105L186822-T is a low-pass RF filter manufactured by Taiyo Yuden, designed for surface-mount applications in the 0402 (1005 metric) package. It features a center frequency of 1.81GHz with a bandwidth of 200MHz and an insertion loss of 0.45dB. The component measures 1.00mm x 0.50mm x 0.40mm maximum height. It is classified as Not Recommended for New Designs (NRND).

Feature Summary

• Low-pass filtering capability centered at 1.81GHz.
• Compact 0402 surface-mount footprint for space-constrained designs.
• Low insertion loss of 0.45dB for signal integrity.

Applications

• RF front-end modules requiring low-pass filtering.
• Wireless communication devices operating near 1.81GHz.
• Mobile phone antenna circuits.

Procurement Notes

Verify current availability status as the part is designated Not Recommended for New Designs. Confirm RoHS3 compliance and MSL Level 1 rating before integration. Check for potential supply constraints or end-of-life notices from Taiyo Yuden to ensure long-term project viability.

Selection Notes

Select this component only if existing designs require the specific 1.81GHz center frequency and 0402 form factor. Due to its NRND status, evaluate alternative components for new product development to avoid future obsolescence risks. Ensure PCB layout accommodates the 1005 metric package dimensions.

Part Context

This component belongs to the FI series of multilayer ceramic RF filters from Taiyo Yuden. It utilizes thin-film technology to achieve precise frequency characteristics in a miniature package. The series is commonly used in mobile handsets and wireless LAN applications where size and performance are critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Given the NRND status, consult Taiyo Yuden for recommended alternatives or design-in support for equivalent specifications.