MCF21.4M15A/SM756

Overview

The YIC MCF21.4M15A/SM756 is a surface-mount monolithic crystal filter designed for precise frequency selection in electronic circuits. It operates at a center frequency of 21.4 MHz with a bandwidth of 15 kHz. The component features an impedance of 1.5 kOhms and an insertion loss of 1.5 dB. It utilizes a 2-pole configuration to achieve the specified filtering characteristics. The physical dimensions are 7 x 5 x 1.3 mm, housed in a standard SMD package suitable for automated assembly processes.

Feature Summary

• Monolithic crystal construction for stable frequency performance
• Surface mount design for compact PCB integration
• 2-pole filtering architecture
• Low insertion loss specification

Applications

• Intermediate frequency (IF) filtering in communication receivers
• Signal processing stages requiring narrow bandpass characteristics
• RF front-end modules for specific frequency bands

Procurement Notes

Verify the exact part number suffix against official YIC documentation to ensure correct impedance and tolerance specifications. Confirm that the SM756 package variant matches your board layout requirements. Cross-reference the datasheet for temperature stability ratings and load capacitance values before finalizing procurement orders.

Selection Notes

Select this component when a 21.4 MHz center frequency with 15 kHz bandwidth is required. Ensure the circuit design accommodates the 1.5 kOhms impedance level. Consider the 1.5 dB insertion loss impact on signal strength. Verify thermal operating ranges align with the application environment constraints.

Part Context

This component belongs to the YIC MCF series of monolithic crystal filters. These devices are engineered for high Q-factor performance in surface-mount applications. The series offers various center frequencies and bandwidth options to suit different communication standards and signal processing needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult YIC technical support or authorized distributors for equivalent components with matching electrical specifications and package dimensions.