12.89644

Crystals Overview

The Geyer Electronic America, Inc. part number 12.89644 is a quartz crystal resonator designed for surface-mount applications. It operates at a fundamental frequency of 4.9152 MHz with a tolerance of ±30ppm and stability of ±50ppm. The component features a load capacitance of 30pF and an equivalent series resistance (ESR) of 120 Ohms. It utilizes an HC-49/US package configuration adapted for SMD mounting with two pads. This device provides accurate clock generation and stable frequency control for electronic circuits requiring precise timing.

Crystals Feature Summary

• Surface-mount design suitable for compact electronics
• Fundamental mode operation for precise frequency control
• Stable performance across operating conditions

Crystals Applications

• Hearing aids
• Earbuds
• Wireless communication devices

Crystals Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required tolerance and packaging specifications. Confirm that the HC-49/US form factor aligns with the target PCB footprint constraints. Check manufacturer documentation for any updates regarding lead times or material compliance standards before finalizing procurement plans.

Crystals Selection Notes

Select this component when a 4.9152 MHz reference signal is required in space-constrained portable devices. Ensure the circuit design accommodates the 30pF load capacitance and 120 Ohm ESR characteristics. Consider the ±50ppm stability requirement against the system's overall timing budget to guarantee reliable operation.

Crystals Part Context

This crystal belongs to the KX-2 series from Geyer Electronic America, Inc., which focuses on super ultra-miniature footprints. The series targets applications where size and weight are critical factors. The manufacturer specializes in quartz crystals, oscillators, and resonators for frequency control products.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult manufacturer engineering support for direct equivalents if sourcing issues arise.