12.87149

Crystals Overview

The Geyer Electronic America, Inc. model 12.87149 is a surface-mount tuning fork quartz crystal designed for precision timing applications. It operates at a nominal frequency of 32.768 kHz with a load capacitance of 9 pF and a series resistance of 70 kOhms. The component utilizes a two-terminal SMD package without leads. It supports an operating temperature range from -40°C to +85°C and belongs to the KX-327NHT series. The device is currently in active production status.

Crystals Feature Summary

• Tuning fork quartz crystal structure optimized for low-frequency timing
• Surface-mount design compatible with automated assembly processes
• Wide industrial temperature range capability

Crystals Applications

• Real-time clock circuits in electronic devices
• Microcontroller system timing references
• Portable consumer electronics requiring precise timekeeping

Crystals Procurement Notes

Verify the specific ordering suffix and packaging configuration against official distributor catalogs before procurement. Confirm that the required tolerance and load capacitance specifications align with the target circuit design parameters. Ensure compatibility with standard reflow soldering profiles for surface-mount components. Check current availability status as supply levels may fluctuate.

Crystals Selection Notes

Select this component when a 32.768 kHz reference signal is required for real-time clock functionality. The 9 pF load capacitance specification must match the oscillator circuit design. Consider the 70 kOhm series resistance for power consumption constraints. The wide temperature range suitability makes it appropriate for industrial or outdoor environments where thermal stability is critical.

Crystals Part Context

This part belongs to the KX-327NHT series of tuning fork crystals manufactured by Geyer Electronic America, Inc. The company specializes in frequency control products including quartz crystals and oscillators. This specific model represents a standard surface-mount solution for maintaining accurate timekeeping in various electronic systems.

Crystals Replacement Considerations

Consult official manufacturer substitution lists for verified equivalent parts. Cross-reference load capacitance, frequency tolerance, and physical dimensions when evaluating alternatives. Ensure any substitute maintains the same operating temperature range and package type for direct replacement.