CSTCR6M40G55B-R0

Resonators Overview

The Murata Electronics CSTCR6M40G55B-R0 is a CERALOCK ceramic resonator designed for surface-mount applications. It operates at a nominal frequency of 6.4 MHz with a tolerance of ±0.5%. The device features an integrated load capacitance of 39 pF and a maximum dynamic resistance of 50 Ohms. It is housed in a compact 4.5 mm x 2 mm x 1.15 mm package suitable for SMD/SMT mounting. The component supports a wide operating temperature range from -40°C to +125°C, ensuring reliability in demanding environments.

Resonators Feature Summary

• Integrates built-in capacitors to simplify circuit design by eliminating external components.
• Utilizes CERALLOCK technology for enhanced frequency stability and reduced aging effects.
• Offers a compact small-cap chip type form factor optimized for space-constrained PCB layouts.

Resonators Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose oscillator circuits

Resonators Procurement Notes

Verify the specific suffix 'B' in the part number CSTCR6M40G55B-R0 against official Murata documentation to confirm packaging or variant specifications. Ensure compatibility with standard reflow soldering profiles for surface-mount devices. Cross-reference the 39 pF internal capacitance requirement with the target oscillator circuit design to guarantee proper frequency generation.

Resonators Selection Notes

Select this component when a stable 6.4 MHz reference is required with minimal external passive components. The ±0.5% tolerance suits applications needing precise timing without the cost of quartz crystals. Consider the -40°C to +125°C range for industrial or automotive environments where thermal stability is critical for consistent operation.

Resonators Part Context

This part belongs to the Murata CSTCR_G_B series of CERALOCK ceramic resonators. These devices are engineered as cost-effective alternatives to quartz crystals, offering comparable performance in many consumer and industrial electronics. The series emphasizes high reliability and ease of integration into modern surface-mount assembly processes.

Resonators Replacement Considerations

Direct substitutes include other Murata CERALOCK parts with identical 6.4 MHz frequency and 39 pF load capacitance, such as CSTCR6M40G55-R0, provided the package dimensions and electrical characteristics match the original design requirements.