AM455CR181

Overview

The AM455CR181 is a monolithic crystal bandpass filter manufactured by Anatech Electronics Inc. Designed for through-hole mounting, it operates at a center frequency of 455 kHz with a nominal impedance of 50 Ohms. Key electrical specifications include a maximum insertion loss of 4.0 dB and a maximum ripple of 0.5 dB. The filter provides a 6 dB bandwidth of 200 Hz (±10%) and achieves an attenuation bandwidth of 800 Hz max at 60 dBc. It features a monotonic response characteristic and measures 2.370 inches in length by 1.000 inch in width.

Feature Summary

• Monolithic construction providing stable filtering performance
• Monotonic passband response for signal integrity
• Through-hole package design for standard PCB integration

Applications

• Intermediate frequency (IF) stages in radio receivers
• Communication equipment requiring narrowband filtering
• Replacement for Collins mechanical filters in legacy systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct pinout and tolerance variants. Confirm RoHS compliance status if required for your assembly process. Cross-reference the part number with official Anatech Electronics catalogs to validate availability and latest revision details before finalizing procurement orders.

Selection Notes

Select this component when a 455 kHz center frequency with a tight 200 Hz bandwidth is required. Ensure the system impedance matches the specified 50 Ohms. Consider the physical dimensions of 60.20mm x 25.40mm for board layout constraints. Verify that the 4.0 dB insertion loss meets the link budget requirements of the application.

Part Context

Anatech Electronics Inc. specializes in RF and microwave filters. This monolithic crystal filter serves as a high-performance alternative to bulkier mechanical filters. It is designed for applications demanding precise frequency selection and steep skirt selectivity in the audio frequency range.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Anatech Electronics engineering support for direct replacements or custom spec matches.