671-4.91M-30-03-W-TR

Overview

The Abracon LLC 671-4.91M-30-03-W-TR is a surface-mount ceramic resonator designed for stable frequency generation in electronic circuits. It operates at a nominal frequency of 4.9152 MHz, a value selected to support precise timing requirements in microcontroller and communication applications. The component utilizes a three-terminal configuration, integrating two capacitors internally to simplify circuit design and reduce board space compared to discrete crystal oscillator solutions. This SMD package allows for automated assembly processes, enhancing manufacturing efficiency. The device is characterized by its compact form factor and reliable performance in standard operating temperature ranges, making it suitable for cost-sensitive consumer electronics and industrial control systems where moderate frequency stability is required.

Feature Summary

• Integrates internal load capacitors to minimize external component count
• Surface-mount package facilitates automated PCB assembly
• Three-terminal design simplifies circuit layout and reduces footprint

Applications

• Microcontroller clock sources
• Communication interface timing
• Consumer electronic devices

Procurement Notes

Verify the specific datasheet version for this part number, as availability status may vary across distributors. Confirm that the obsolete status noted in some listings does not preclude procurement from remaining stock or authorized channels. Ensure compatibility with the target application's thermal and electrical requirements before finalizing orders.

Selection Notes

Select this resonator when a cost-effective alternative to crystals is needed for fixed-frequency applications. Consider the tolerance specifications and temperature stability characteristics relative to the system's timing accuracy requirements. Evaluate the physical dimensions against available PCB real estate and ensure the mounting style aligns with the production line's capabilities.

Part Context

This component belongs to Abracon LLC's series of surface-mount ceramic resonators. These devices are engineered to provide stable oscillation frequencies for digital logic circuits. The series typically offers various frequency options packaged in standardized SMD footprints, catering to diverse industry needs for timing elements in embedded systems.

Replacement Considerations

Direct substitutes include other Abracon 671 series resonators with identical pinouts and similar frequency ratings. Cross-reference with equivalent parts from other manufacturers ensuring matching frequency, tolerance, and package dimensions to maintain circuit functionality without redesign.