12.85729

Crystals Overview

The Geyer Electronic America, Inc. model 12.85729 is a quartz crystal component designed for frequency control applications. It operates at a fundamental frequency of 16 MHz with a specified load capacitance of 10 pF and an equivalent series resistance (ESR) of 100 Ohms. The device features a tolerance of ±10 ppm and is housed in a 4-SMD, No Lead package. This super ultra-miniature footprint makes it suitable for space-constrained designs.

Crystals Feature Summary

• Super ultra-miniature footprint optimized for compact electronic designs
• Quartz construction providing stable frequency control
• Surface-mount configuration without leads for automated assembly

Crystals Applications

• Hearing aids
• Earbuds
• Wireless applications

Crystals Procurement Notes

Verify the specific datasheet version and exact electrical parameters directly from the manufacturer before integration. Confirm that the 4-SMD, No Lead package dimensions match your PCB layout requirements. Ensure compliance with Class III Life Supporting Device regulations if used in medical contexts. Check current supply chain status due to reported order volume impacts on shipping timelines.

Crystals Selection Notes

Select this component when a 16 MHz reference signal is required in ultra-small form factors. The 100 Ohm ESR and 10 pF load capacitance must align with the oscillator circuit design. Consider the ±10 ppm tolerance against system stability needs. The surface-mount package facilitates high-volume manufacturing processes compared to through-hole alternatives.

Crystals Part Context

This part belongs to the KX-2 series of quartz crystals manufactured by Geyer Electronic America, Inc. The series is characterized by its super ultra-miniature size, targeting portable and wearable electronics. Geyer specializes in frequency control products, including oscillators and resonators, supporting accurate clock generation and synchronization for various consumer and industrial devices.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching 16 MHz frequency, 10 pF load capacitance, 100 Ohm ESR, ±10 ppm tolerance, and 4-SMD No Lead package dimensions.