MCF45M15B/SM756

Overview

The MCF45M15B/SM756 is a monolithic crystal filter manufactured by YIC, designed for surface-mount applications. It operates at a center frequency of 45 MHz with a bandwidth of 15 kHz. The component features a 3 dB insertion loss and an impedance of 800 Ohms. It is housed in a 6-SMD, No Lead package with dimensions of 7.00mm x 5.00mm and a maximum height of 1.40mm. The device complies with RoHS3 standards.

Feature Summary

• Surface-mount monolithic crystal filter design
• High stability at 45 MHz center frequency
• Compact 6-SMD no-lead package configuration

Applications

• Intermediate frequency filtering in communication receivers
• Signal processing in RF front-end modules
• Demodulation circuits requiring precise bandwidth control

Procurement Notes

Verify the specific suffix B against official YIC documentation to confirm impedance and loss characteristics, as variations exist within the SM756 series. Ensure the 6-SMD footprint matches the target PCB layout. Confirm RoHS3 compliance status directly with the manufacturer or authorized distributor before finalizing procurement specifications.

Selection Notes

Select this component when a 45 MHz center frequency with 15 kHz bandwidth is required. The 800 Ohm impedance must match the circuit design requirements. Consider the 7.0x5.0 mm package size for space-constrained designs. Compare insertion loss specifications against system sensitivity needs to ensure adequate signal integrity.

Part Context

This part belongs to the YIC MCF-SM756 series of SMD crystal filters. The series offers various frequencies and impedance options in a standardized 7.0x5.0 mm footprint. The MCF45M15B variant specifically targets 45 MHz applications with defined electrical parameters distinct from other series members like the MCF45M15A.

Replacement Considerations

The MCF45M15A/SM756 is a related variant but differs in impedance (560 Ohms) and insertion loss (4 dB). Verify compatibility if substituting. No other direct public substitutes are confirmed for this specific B-suffix configuration.