12.87145

Crystals Overview

The Geyer Electronic America, Inc. part number 12.87145 is a ceramic tuning fork crystal designed for surface-mount applications. It operates at a nominal frequency of 32.768 kHz and utilizes a load capacitance of 12.5 pF. The component features an equivalent series resistance (ESR) of 40 kOhms maximum. Frequency stability is specified within a range of -20 ppm to +40 ppm. The physical package dimensions are 3.20 mm in length, 1.50 mm in width, with a maximum seated height of 0.85 mm.

Crystals Feature Summary

• Surface-mount ceramic tuning fork construction
• High stability frequency control for real-time clock applications
• Low power consumption design

Crystals Applications

• Real-time clock circuits
• Microcontroller system timing
• Portable electronic devices requiring low power standby modes

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required tolerance and packaging specifications. Confirm RoHS compliance status if environmental regulations apply to the end product. Cross-reference the lead time with authorized distributors as manufacturing schedules may vary based on production volume and regional supply chain conditions.

Crystals Selection Notes

Select this component when a compact surface-mount solution is required for precise 32.768 kHz timing. Ensure the circuit design accommodates the 12.5 pF load capacitance to maintain frequency accuracy. Consider the ESR limits when designing oscillator circuits to guarantee reliable startup and sustained oscillation under varying temperature conditions.

Crystals Part Context

This part belongs to the KX-327NHT series from Geyer Electronic America, Inc., which specializes in quartz crystals and oscillators. The series is engineered for accurate clock generation and stable synchronization in consumer electronics. Geyer provides a broad portfolio of timing devices supporting various interface requirements and form factors.

Crystals Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pinout compatibility and electrical parameters such as frequency tolerance and load capacitance before integrating alternative components into existing designs.