MCF21.4M7A/SM756

Overview

The YIC MCF21.4M7A/SM756 is a monolithic crystal filter designed for surface mount applications. It operates at a center frequency of 21.4 MHz with an impedance of 850 Ohms. The device features a bandwidth of 7.5 kHz and an insertion loss of 2 dB. It is housed in a compact 7 x 5 x 1.3 mm package, suitable for GNSS frequency control products.

Feature Summary

• Monolithic crystal construction for stable frequency filtering
• Surface mount design for automated assembly
• Optimized for GNSS signal processing

Applications

• GNSS receiver front-end filtering
• Frequency control circuits
• Signal processing modules requiring 21.4 MHz selectivity

Procurement Notes

Verify the specific suffix SM756 to confirm the package type and terminal configuration. Ensure the 850 Ohm impedance matches the circuit requirements. Confirm the 21.4 MHz center frequency aligns with the target application. Check datasheet for temperature stability specifications before integration.

Selection Notes

Select this component when a narrow 7.5 kHz bandwidth is required at 21.4 MHz. The 850 Ohm impedance suits specific matching networks. Consider the 2 dB insertion loss impact on signal strength. The SMD form factor dictates PCB layout constraints.

Part Context

This part belongs to the YIC MCF series of monolithic crystal filters. These components are engineered for high-performance frequency selection in communication systems. The series offers various impedance and bandwidth options tailored for different RF stages.

Replacement Considerations

Check YIC MCF21.4M15A/SM756 for similar frequency but different impedance (1.5 kOhms) and bandwidth (15 kHz). Verify compatibility if circuit impedance must change.