12.88511

Crystals Overview

The Geyer Electronic America, Inc. part number 12.88511 is a quartz crystal resonator designed for surface-mount applications. It operates at a fundamental frequency of 27.12 MHz with a specified frequency tolerance of ±30 ppm. The component features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 50 Ohms. It is housed in a 4-SMD, No Lead package, suitable for compact electronic designs requiring precise timing signals.

Crystals Feature Summary

• Super ultra-miniature footprint ideal for space-constrained devices
• Designed for hearing aids, earbuds, and wireless applications
• RoHS compliant construction

Crystals Applications

• Hearing aids
• Earbuds
• Wireless applications

Crystals Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Geyer Electronic America, Inc. or authorized distributors before procurement. Confirm that the 4-SMD, No Lead package matches your PCB design requirements. Ensure the ±30 ppm tolerance meets your system's clock accuracy needs. Check for any recent supply chain updates or shipping delays mentioned by the manufacturer.

Crystals Selection Notes

Select this component when a small form factor is critical for wearable or portable audio devices. The 27.12 MHz frequency is suitable for specific RF or clocking applications. Consider the 10 pF load capacitance compatibility with your oscillator circuit. The 50 Ohm ESR should be evaluated against your driver stage capabilities to ensure reliable oscillation start-up.

Crystals Part Context

This part belongs to the KX-2 series of quartz crystals from Geyer Electronic America, Inc. The KX-2 series is characterized by its super ultra-miniature footprint, targeting high-density PCB layouts. It complements other Geyer timing devices like TCXOs and VCXOs, offering a passive solution for cost-sensitive and size-critical consumer electronics.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching frequency, tolerance, load capacitance, ESR, and package dimensions with alternative manufacturers.