LTC455HU

Overview

The LTC455HU is a ceramic filter manufactured by Transko Electronics, Inc., designed for AM radio applications. It features a center frequency of 455 kHz with a bandwidth of 6 kHz. The component has an impedance of 2 kOhm and utilizes a 3-SMD J-Lead package. Key electrical specifications include a center frequency tolerance of ±1.0 kHz, insertion loss of 5 dB, minimum attenuation at 6 dB bandwidth of 3.0 kHz, maximum attenuation of 9.0 kHz, and a maximum capacitance of 30 pF.

Feature Summary

• Optimized for AM broadcast signal processing
• Compact surface-mount J-lead configuration
• Fixed center frequency stability

Applications

• AM radio receiver intermediate frequency stages
• Consumer audio equipment filtering
• Broadcast signal conditioning circuits

Procurement Notes

Verify the specific suffix HU against official Transko documentation to confirm package type and tolerance levels. Ensure compatibility with existing PCB footprints for 3-SMD J-Lead components. Cross-reference datasheet parameters such as impedance and bandwidth against system requirements before procurement.

Selection Notes

Select this component when a 455 kHz center frequency is required for AM applications. Consider the 2 kOhm impedance match for circuit design. Evaluate the 3-SMD J-Lead form factor for space-constrained designs requiring reliable surface mounting.

Part Context

This part belongs to the ceramic filter family from Transko Electronics, Inc., specifically tailored for AM radio frequencies. It serves as a passive component in signal chain architectures, providing frequency selectivity without active power requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameters if considering alternative manufacturers.