12.85567

Crystals Overview

The Geyer Electronic America, Inc. part number 12.85567 is a quartz crystal resonator designed for surface-mount applications. It operates at a fundamental frequency of 25 MHz with a standard load capacitance of 8 pF. The component features an equivalent series resistance (ESR) of 100 Ohms and a frequency tolerance of ±30 ppm. It is housed in a compact 4-SMD, No Lead package, suitable for space-constrained electronic designs requiring precise timing references.

Crystals Feature Summary

• Ultra-compact KX-5E surface-mount footprint for miniaturized circuit boards
• Quartz-based frequency stability ensuring reliable timing performance
• Designed for integration into hearing aids, earbuds, and wireless devices

Crystals Applications

• Hearing aids
• Earbuds
• Wireless communication modules

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required load capacitance and tolerance specifications. Confirm that the 4-SMD no-lead package aligns with your PCB assembly capabilities and reflow soldering profiles. Cross-reference the 25 MHz frequency requirement with system clock inputs to prevent mismatch issues during integration.

Crystals Selection Notes

Select this component when a 25 MHz reference is required in ultra-miniature form factors. The 8 pF load capacitance must match the oscillator circuit design parameters. Consider the ±30 ppm tolerance for applications where moderate frequency drift is acceptable. Ensure the operating temperature range supports the intended environmental conditions of the final device.

Crystals Part Context

This part belongs to the KX-2 series of super ultra-miniature quartz crystals from Geyer Electronic. The series is engineered specifically for high-density electronics where space is limited. It complements the manufacturer's broader portfolio of frequency control products, including oscillators and resonators, targeting consumer and medical wearable markets.

Crystals Replacement Considerations

Consult official substitution lists for direct equivalents within the KX-2 series. Verify pinout and electrical parameters before replacing with generic 25 MHz SMD crystals. Ensure any substitute maintains the 8 pF load capacitance and 4-SMD package dimensions to fit existing footprints.