12.85519

Crystals Overview

The Geyer Electronic America, Inc. part number 12.85519 is a quartz crystal component designed for frequency control applications. It operates at a fundamental frequency of 20.0 MHz with a specified load capacitance of 8 pF. The device features an equivalent series resistance (ESR) of 200 Ohms and exhibits a frequency tolerance of ±20 ppm. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Crystals Feature Summary

• Super ultra-miniature footprint design optimized for space-constrained environments
• Quartz crystal construction ensuring stable frequency generation
• Surface-mount compatible package for automated assembly

Crystals Applications

• Hearing aids
• Earbuds
• Wireless applications

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required tolerance and temperature range specifications. Confirm that the 4-SMD no-lead package matches your PCB footprint requirements. Check RoHS compliance status if environmental regulations apply to your production line. Ensure the 8 pF load capacitance aligns with your circuit design parameters before finalizing procurement.

Crystals Selection Notes

Select this component when a 20.0 MHz reference signal is required in ultra-small form factors. The 8 pF load capacitance must match the oscillator circuit design. Consider the 200 Ohm ESR for drive level sensitivity. This part is intended for portable devices where size is critical, such as hearing aids and earbuds, rather than general-purpose industrial equipment.

Crystals Part Context

This component belongs to the KX-2 series from Geyer Electronic, which specializes in super ultra-miniature quartz crystals. The series is engineered specifically for high-density electronics markets. Geyer Electronic is a manufacturer focusing on frequency control products including crystals, oscillators, and resonators for various electronic sectors.

Crystals Replacement Considerations

No public substitute part numbers are documented in the provided source material. Cross-referencing requires matching the 20.0 MHz frequency, 8 pF load capacitance, 200 Ohm ESR, and 4-SMD package dimensions with alternative manufacturers' catalogs.

Crystals FAQ

What is the load capacitance for this crystal?

The load capacitance is 8 pF.

What is the operating frequency of part 12.85519?

The operating frequency is 20.0 MHz.