12.88653

Crystals Overview

The Geyer Electronic America, Inc. model 12.88653 is a quartz crystal component designed for frequency control applications. It operates at a fundamental frequency of 40 MHz with a tolerance of ±50ppm. The device features a load capacitance of 16pF and an equivalent series resistance of 50 Ohms. It is housed in a compact 4-SMD, No Lead package, also described as a flat lead ceramic surface mount configuration. The physical dimensions are approximately 0.126 inches in length by 0.098 inches in width.

Crystals Feature Summary

• Super ultra-miniature footprint suitable for space-constrained designs
• Fundamental mode quartz crystal construction
• Surface mount package optimized for automated assembly

Crystals Applications

• Hearing aids
• Earbuds
• Wireless communication devices

Crystals Procurement Notes

Verify the specific datasheet version to confirm stability parameters and temperature range, as distributor listings may summarize specifications. Ensure the ordering suffix matches the required packaging format, such as cut tape, if applicable. Cross-reference the part number against the manufacturer's official catalog to confirm current production status and availability constraints due to potential order volume impacts.

Crystals Selection Notes

Select this component when a 40 MHz reference signal is required in miniature form factors. The 16pF load capacitance must align with the oscillator circuit design. Consider the 50 Ohm ESR for drive level sensitivity. The SMD package type facilitates integration into high-density PCB layouts typical of portable audio and wireless electronics.

Crystals Part Context

This part belongs to the KX-2 series of quartz crystals from Geyer Electronic America. The series is characterized by super ultra-miniature footprints targeting medical and consumer audio markets. It complements the company's broader portfolio of oscillators and ceramic resonators, focusing on high-frequency precision in small packages.

Crystals Replacement Considerations

Direct substitutes require matching 40 MHz frequency, 16pF load capacitance, and 4-SMD package dimensions. Verify equivalent stability and tolerance ratings. Consult the manufacturer for approved cross-reference lists to ensure functional compatibility in hearing aid or earbud circuits.