12.87181

Crystals Overview

The Geyer Electronic America, Inc. model 12.87181 is a quartz crystal designed for frequency control applications. It operates at a nominal frequency of 32.768 kHz with a tolerance of ±20 ppm. The component features a fundamental mode of operation and an equivalent series resistance of 70 kOhms. It is specified with a load capacitance of 12.5 pF. The device is packaged in a 2-SMD, No Lead form factor suitable for surface mount technology. It meets the AEC-Q200 qualification standard for automotive electronics.

Crystals Feature Summary

• Automotive-grade reliability certified under AEC-Q200 standards
• Fundamental mode quartz crystal construction
• Surface-mount package design for automated assembly

Crystals Applications

• Automotive electronic systems requiring precise timing
• Real-time clock circuits in vehicle modules
• Frequency reference sources for microcontrollers

Crystals Procurement Notes

Verify that the specific order matches the exact part number 12.87181 to ensure correct frequency and tolerance specifications. Confirm that the supplier provides documentation verifying AEC-Q200 compliance for automotive use cases. Check packaging details to ensure the 2-SMD no-lead format aligns with your board layout requirements. Ensure storage conditions meet manufacturer guidelines for sensitive frequency control components.

Crystals Selection Notes

Select this component when a 32.768 kHz reference is required for automotive environments. The high series resistance of 70 kOhms suits low-power oscillator designs. The 12.5 pF load capacitance must match the circuit design for accurate frequency tuning. Consider the SMD package type for space-constrained printed circuit boards.

Crystals Part Context

This part belongs to the Geyer Electronic family of frequency control products. It is a standalone quartz crystal resonator rather than an integrated oscillator. The product line includes various crystals and resonators for industrial and consumer markets. This specific model targets the automotive sector due to its qualification status.

Crystals Replacement Considerations

Direct substitutes must match the 32.768 kHz frequency, 12.5 pF load capacitance, and 70 kOhm ESR. Verify that alternative parts also hold AEC-Q200 certification if used in automotive applications. Package dimensions should be compatible with existing footprints.