12.86574

Crystals Overview

The Geyer Electronic America, Inc. part number 12.86574 is a surface-mount quartz crystal resonator designed for precision frequency control applications. It operates at a fundamental frequency of 27 MHz with a load capacitance specification of 8 pF. The component features a low equivalent series resistance of 80 Ohms and maintains a frequency stability tolerance of ±30 ppm. Physically, it utilizes a compact 4-SMD, no-lead package configuration with dimensions measuring 2.50 mm in length by 2.00 mm in width. This super ultra-miniature footprint makes the device suitable for space-constrained electronic designs requiring reliable high-frequency oscillation.

Crystals Feature Summary

• Super ultra-miniature SMD footprint optimized for dense circuit board layouts
• High frequency stability with ±30 ppm tolerance for precise timing
• Low equivalent series resistance of 80 Ohms for efficient operation

Crystals Applications

• Hearing aids
• Earbuds
• Wireless communication devices

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required load capacitance and frequency tolerance specifications. Confirm that the package variant matches the intended surface-mount assembly process. Cross-reference the part number with authorized distributor catalogs to validate current availability and standard lead times before finalizing procurement plans.

Crystals Selection Notes

Select this component when design constraints require a 27 MHz reference signal within a minimal physical envelope. Ensure the target application circuit supports an 8 pF load capacitance to maintain accurate frequency output. Evaluate the ±30 ppm stability requirement against system timing budgets. Consider the 4-SMD no-lead package type for automated pick-and-place manufacturing efficiency.

Crystals Part Context

This component belongs to the KX-2 series of quartz crystals manufactured by Geyer Electronic America, Inc. The series is characterized by its super ultra-miniature form factor, specifically engineered for portable and wearable electronics. These crystals are part of a broader portfolio of frequency control products including oscillators and ceramic resonators offered by the manufacturer.

Crystals Replacement Considerations

Consult official substitution guides for compatible 27 MHz SMD crystals with matching 8 pF load capacitance and similar dimensional constraints. Verify electrical parameters such as ESR and stability tolerance before implementing any alternative part numbers.