CSTCR4M91G55Z-R0

Resonators Overview

The Murata Electronics CSTCR4M91G55Z-R0 is a small-cap chip type ceramic resonator from the CERALOCK series. It operates at a nominal frequency of 4.91 MHz with a tolerance of ±0.5% and stability of ±0.3%. The component features an integrated load capacitance of 39 pF and an impedance of 60 Ohms. Designed for surface mount (SMD/SMT) applications, it measures 4.5 mm in length and 2 mm in width. The device supports an operating temperature range from -40°C to +125°C.

Resonators Feature Summary

• Integrates built-in capacitors to simplify circuit design by eliminating external components.
• Utilizes CERALOCK technology for high reliability and stable oscillation performance.
• Offers compact surface-mount packaging suitable for space-constrained layouts.

Resonators Applications

• Microcontroller clock sources
• Communication module timing circuits
• Embedded system oscillator references

Resonators Procurement Notes

Verify the specific suffix Z against official documentation to confirm package and tape specifications. Ensure the required frequency tolerance and load capacitance match the target circuit design before procurement. Cross-reference the RoHS and REACH compliance status with current regulatory requirements for the intended market.

Resonators Selection Notes

Select this component when a cost-effective, compact solution is required for standard microcontroller interfaces. Compare the 39 pF internal load capacitance against the MCU's specified external load requirements to ensure frequency accuracy. Evaluate the ±0.5% tolerance against system timing constraints to determine if tighter specifications are necessary.

Resonators Part Context

This part belongs to the CSTCR_G_B series of ceramic resonators manufactured by Murata Electronics. It serves as an alternative to discrete crystal oscillator assemblies, offering a balance between performance and size. The CERALOCK branding indicates a focus on reliability within the consumer and industrial electronics sectors.

Resonators Replacement Considerations

Direct substitutes include other Murata ceramic resonators with identical 4.91 MHz frequency, 39 pF load capacitance, and compatible SMD footprint dimensions. Verify that any replacement maintains the same operating temperature range and impedance characteristics.

Resonators FAQ

What is the integrated load capacitance value?

The CSTCR4M91G55Z-R0 includes a built-in load capacitance of 39 pF.

What is the frequency tolerance specification?

The nominal frequency tolerance is specified as ±0.5%.