12.8717

Crystals Overview

The Geyer Electronic America, Inc. model 12.87170 is a quartz crystal component designed for precise frequency control applications. It operates at a fundamental resonant frequency of 32.768 kHz, which is standard for real-time clock and timing circuits. The device features a frequency tolerance of ±20ppm, ensuring reliable synchronization over its operational range. Key electrical parameters include a load capacitance of 12.5pF and an equivalent series resistance (ESR) of 90 kOhms. These specifications define the component's impedance characteristics and stability requirements within oscillator circuits.

Crystals Feature Summary

• Fundamental mode operation at 32.768 kHz for accurate timekeeping
• Stable frequency performance with ±20ppm tolerance
• Optimized for low power consumption in portable devices

Crystals Applications

• Real-time clock circuits
• Microcontroller system oscillators
• Portable electronic devices requiring precise timing

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required load capacitance and package type. Confirm that the ESR value of 90 kOhms aligns with the target oscillator circuit design. Check for any recent updates to the RoHS compliance status or material declarations before finalizing procurement orders.

Crystals Selection Notes

Select this component when a fundamental frequency of 32.768 kHz is required for clock generation. Ensure the circuit design supports the specified 12.5pF load capacitance to maintain accuracy. Consider the ±20ppm tolerance relative to the system's timing precision needs. Verify that the 90 kOhm ESR is compatible with the driving strength of the host microcontroller or oscillator IC.

Crystals Part Context

This part belongs to Geyer Electronic America, Inc.'s portfolio of quartz crystals and timing devices. The company specializes in frequency control products including crystals, oscillators, and resonators. This specific model is part of their standard line of fundamental mode crystals intended for general-purpose timing applications where stable, low-frequency reference signals are essential.

Crystals Replacement Considerations

Consult official substitution lists for direct equivalents. Cross-reference key parameters such as 32.768 kHz frequency, 12.5pF load capacitance, and 90 kOhm ESR when evaluating alternative components from other manufacturers.