CSTCR4M91G55A-R0

Resonators Overview

The Murata Electronics CSTCR4M91G55A-R0 is a small-capacity chip ceramic resonator from the CERALOCK series. It operates at a nominal frequency of 4.195 MHz with a tolerance of 0.5%. The component utilizes SMD/SMT termination and features a load capacitance of 39 pF. It is designed for surface mount assembly in a compact form factor measuring 4.5 mm in length and 2 mm in width. The unit weighs approximately 35 mg and supports an operating temperature range from -40°C to +125°C.

Resonators Feature Summary

• Provides stable clock signals using piezoelectric ceramic technology
• Offers high frequency stability with tight tolerance specifications
• Features low profile surface mount design for automated assembly

Resonators Applications

• Microcontroller clock sources
• Communication module timing circuits
• Consumer electronics control boards

Resonators Procurement Notes

Verify the exact part number suffix against official documentation, as variations may exist between similar models like the G55B variant. Confirm RoHS compliance status through current datasheets. Ensure compatibility with reflow soldering profiles specified by the manufacturer. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Resonators Selection Notes

Select this component when precise frequency accuracy is required for microcontroller applications. Consider the 0.5% tolerance for critical timing needs. Evaluate the 39 pF load capacitance against circuit requirements. Assess thermal performance within the specified -40°C to +125°C range for environmental suitability.

Resonators Part Context

This resonator belongs to Murata's CERALOCK family, known for reliability in consumer and industrial equipment. It serves as a cost-effective alternative to crystal oscillators where moderate stability suffices. The series supports various frequencies and packages for diverse embedded system designs.

Resonators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify cross-references through official distributor databases or manufacturer substitution guides.