12.8911

Crystals Overview

The Geyer Electronic America, Inc. model 12.8911 is a quartz crystal component designed for frequency control applications. It operates at a nominal frequency of 12 MHz with a specified tolerance of ±50ppm. The device features a load capacitance of 30pF and an equivalent series resistance (ESR) of 100 Ohms. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly. This component is part of the KX-2 series, characterized by a super ultra-miniature footprint intended for space-constrained designs.

Crystals Feature Summary

• Super ultra-miniature footprint optimized for space-constrained designs
• Designed for accurate clock generation and stable frequency control
• Surface-mount construction compatible with automated assembly processes

Crystals Applications

• Hearing aids
• Earbuds
• Wireless applications

Crystals Procurement Notes

Verify the specific ordering suffix against the official datasheet to ensure compatibility with required frequency tolerances and packaging options. Confirm that the selected variant meets the electrical specifications for load capacitance and ESR. Check for any recent updates to the product data sheet regarding mechanical dimensions or material compliance. Ensure the supplier provides traceability documentation consistent with Class III life-supporting device requirements if applicable to the end application.

Crystals Selection Notes

Select this component when a 12 MHz reference signal is required in a form factor smaller than standard crystals. Consider the ±50ppm tolerance relative to the system's frequency stability requirements. Evaluate the 30pF load capacitance against the oscillator circuit design to ensure proper oscillation. The 4-SMD no-lead package requires appropriate PCB land pattern design for reliable soldering. Assess thermal management needs based on the low power consumption typical of miniature crystals.

Crystals Part Context

This part belongs to the KX-2 series from Geyer Electronic America, Inc., which specializes in frequency control products. The manufacturer has been producing quartz crystals and oscillators since 1964, emphasizing long-term availability and design support. The KX-2 series targets applications demanding high reliability in minimal physical space, aligning with trends in miniaturized consumer electronics and medical devices.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material. Cross-referencing with other manufacturers requires matching frequency, tolerance, load capacitance, ESR, and package dimensions. Verify pinout compatibility and operating temperature range before considering alternative sources.