LTC455GU

Overview

The LTC455GU is a ceramic filter manufactured by Transko Electronics, Inc., designed for AM radio applications. It features a center frequency of 455kHz with a minimum bandwidth of 4.5kHz at the 6dB point. The component has an impedance of 1.5kOhm and is housed in a 3-SMD, J-Lead package.

Feature Summary

• Designed specifically for AM radio signal processing
• Utilizes ceramic resonator technology for stable filtering
• Provides defined bandwidth characteristics for intermediate frequency stages

Applications

• AM radio receivers
• Intermediate frequency filtering in communication equipment
• Signal processing circuits requiring 455kHz standardization

Procurement Notes

Verify the specific suffix 'GU' against the manufacturer's current datasheet to confirm package type and terminal configuration. Ensure compatibility with existing PCB footprints for 3-SMD J-Lead components. Cross-reference impedance values with circuit design requirements to maintain signal integrity in the intended application.

Selection Notes

Select this component when a fixed 455kHz ceramic filter is required for AM broadcast band reception. Consider the 1.5kOhm impedance match with preceding and following amplifier stages. Evaluate the physical dimensions of the 3-SMD J-Lead package against available board space constraints during the layout phase.

Part Context

Transko Electronics produces a range of ceramic filters for radio frequency applications. The LTC series typically targets intermediate frequency stages in consumer electronics. This specific model serves as a passive component to shape the frequency response of AM signals within receiver architectures.

Replacement Considerations

Check for direct substitutes such as the LTM455U from the same manufacturer family. Verify that any replacement maintains the 455kHz center frequency and compatible impedance levels to ensure circuit performance remains unchanged.