PBRC4.91MR50X000

Resonators Overview

The PBRC4.91MR50X000 is a ceramic resonator manufactured by KYOCERA AVX, designed for surface-mount applications. It operates at a nominal frequency of 4.91 MHz with a tolerance and stability of ±0.5%. The component features built-in capacitors of 15 pF, eliminating the need for external load capacitors in circuit designs. It is housed in a three-pin CSMD package suitable for automated assembly processes. The device supports an operating temperature range from -40°C to +85°C, ensuring reliability across various industrial and consumer environments.

Resonators Feature Summary

• Integrated built-in capacitors simplify circuit design by removing the requirement for external load components.
• High frequency stability of ±0.5% ensures precise timing performance for microcontroller clock sources.
• Surface-mount construction facilitates efficient placement in compact electronic assemblies.

Resonators Applications

• Microcontroller clock generation
• Consumer electronics timing circuits
• Industrial control system oscillators

Resonators Procurement Notes

Verify that the specific part number suffix matches the required capacitance value and frequency tolerance. Confirm the package type corresponds to the board layout requirements. Ensure the temperature rating aligns with the operational environment specifications. Cross-reference the manufacturer documentation to confirm current production status and availability constraints before finalizing procurement plans.

Resonators Selection Notes

Select this component when a stable, low-component-count clock source is required for digital logic. The integrated capacitor feature reduces bill-of-materials complexity compared to discrete crystal solutions. Consider the physical dimensions and pin configuration during PCB footprint design. Evaluate thermal performance to ensure operation within the specified -40°C to +85°C range under all expected load conditions.

Resonators Part Context

This component belongs to the PBRC series of ceramic resonators from KYOCERA AVX. These devices are engineered as cost-effective alternatives to quartz crystals for applications where moderate frequency accuracy suffices. The series utilizes piezoelectric ceramic materials to generate mechanical resonance, providing a reliable timing reference for embedded systems and communication modules.

Resonators Replacement Considerations

Direct substitutes include other KYOCERA AVX ceramic resonators with matching 4.91 MHz frequency and ±0.5% tolerance. Verify equivalent built-in capacitance values and package dimensions to ensure mechanical compatibility. Check for identical temperature ratings and electrical characteristics before implementing any cross-brand replacement.