12.8575

Crystals Overview

The Geyer Electronic America, Inc. model 12.8575 is a quartz crystal resonator designed for surface-mount applications. It operates at a fundamental frequency of 32.768 kHz with a load capacitance of 12.5 pF and an equivalent series resistance (ESR) of 60 kOhms. The component features a ±20 ppm frequency tolerance and utilizes a 4-SMD, No Lead package configuration. This specific part number corresponds to the standard low-frequency timing element within the manufacturer's catalog.

Crystals Feature Summary

• Provides stable oscillation for real-time clock and calendar circuits
• Designed for direct surface-mount integration into PCB layouts
• Optimized for low-power consumption in portable electronic devices

Crystals Applications

• Real-time clock modules
• Digital watches and wristwatches
• Portable consumer electronics

Crystals Procurement Notes

Verify the exact load capacitance and ESR requirements against your circuit design before procurement. Ensure the selected package matches your automated assembly capabilities. Confirm that the ±20 ppm tolerance meets your system's timing accuracy specifications. Cross-reference the datasheet for storage conditions and soldering profiles to prevent component damage during manufacturing.

Crystals Selection Notes

Select this component when a precise 32.768 kHz reference is required for timekeeping functions. Consider the 12.5 pF load capacitance compatibility with your oscillator circuit. Evaluate the 60 kOhm ESR to ensure sufficient loop gain for reliable startup. Choose this SMD variant for space-constrained designs requiring robust mechanical stability compared to through-hole alternatives.

Crystals Part Context

This crystal belongs to Geyer Electronic America's line of frequency control products, which includes quartz crystals, oscillators, and ceramic resonators. The company specializes in providing precision timing solutions for various industrial and consumer applications. The 12.8575 designation identifies a specific frequency and package combination within their extensive catalog of standard and custom timing components.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with alternative manufacturers by matching frequency, load capacitance, ESR, and package dimensions. Consult official distributor databases for cross-referencing options if supply chain constraints require substitution.