LTC455FW-TR

Overview

The LTC455FW-TR is a ceramic filter manufactured by Transko Electronics, Inc., designed for AM radio applications. It features a center frequency of 455kHz and utilizes a 4-SMD, J-Lead package. The component has an impedance of 1.5kOhm and provides a minimum bandwidth of 6kHz at the 6dB attenuation point.

Feature Summary

• Utilizes ceramic technology for stable signal filtering in AM receivers
• Designed with a compact surface-mount J-Lead package for automated assembly

Applications

• AM radio receiver intermediate frequency stages
• Consumer electronics requiring 455kHz signal processing
• Industrial control systems using AM modulation

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing from distributors. Confirm that the 1.5kOhm impedance matches the circuit design requirements. Ensure the 455kHz center frequency aligns with the target AM broadcast band standards. Check RoHS compliance status if environmental regulations apply to the manufacturing process.

Selection Notes

Select this component for applications requiring a fixed 455kHz center frequency with a narrow bandwidth characteristic. The SMD form factor suits high-volume production environments. Consider the 1.5kOhm impedance level to ensure proper matching with preceding amplifier stages. Evaluate the physical dimensions against available PCB space constraints.

Part Context

This part belongs to the LTC455 series of ceramic filters from Transko Electronics. Variants such as LTC455BU and LTC455EU share similar electrical characteristics but may differ in packaging or tolerance specifications. The series is standardized for AM radio intermediate frequency applications.