DC455K0000S103

Overview

The TGS DC455K0000S103 is a surface-mount ceramic filter designed as a center discriminator for FM signal processing. It operates at a nominal center frequency of 455 kHz with an anti-resonant frequency tolerance of ±1.0 kHz. The component features a maximum resonant impedance of 70 ohms and an insertion loss of 3 dB. It utilizes a 2-pad SMD package with physical dimensions of 6.2 mm in length, 6.0 mm in width, and 3.1 mm in height.

Feature Summary

• Integrated center discriminator functionality for FM demodulation
• Surface-mount construction for automated assembly
• Fixed 455 kHz operating frequency for standard IF applications

Applications

• FM radio receiver intermediate frequency stages
• Signal separation and demodulation circuits
• Consumer audio equipment RF sections

Procurement Notes

Verify the specific datasheet revision (e.g., NextGen R1008) against the manufacturer's current documentation to ensure parameter accuracy. Confirm that the 2-pad SMD footprint matches the target PCB design. Check RoHS compliance status if required by the end product specifications. Ensure the supplier provides original manufacturer packaging to prevent counterfeit components.

Selection Notes

Select this component when a dedicated ceramic discriminator is required for 455 kHz FM applications rather than a generic bandpass filter. The fixed impedance and insertion loss characteristics must align with the preceding amplifier stage. Consider the physical dimensions (6.2x6.0x3.1 mm) during layout planning to ensure adequate clearance for the 2-pad SMD configuration.

Part Context

This part belongs to the TGS DC series of ceramic filters, specifically engineered for discriminator applications. It serves as a specialized variant within the broader category of 455 kHz IF components, offering integrated phase discrimination capabilities distinct from standard passband filters used in similar frequency ranges.

Replacement Considerations

Cross-reference with other manufacturers' 455 kHz ceramic discriminators such as those from Murata or TDK. Verify pin compatibility and mechanical dimensions before substitution. Ensure the replacement maintains the same 70 ohm max resonant impedance and 3 dB insertion loss specifications.