12.87147

Crystals Overview

The Geyer Electronic America, Inc. part number 12.87147 is a surface-mount tuning fork quartz crystal resonator designed for precision timing applications. It operates at a fundamental frequency of 32.768 kHz with a tolerance of ±10 ppm. The component features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 60 kOhms. It utilizes a two-pin SMD package configuration and is supplied in tape and reel format. The device is RoHS compliant and supports an operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Super ultra-miniature footprint suitable for space-constrained designs
• Tuning fork architecture optimized for low-power consumption
• Surface-mount technology for automated assembly integration

Crystals Applications

• Hearing aids
• Earbuds
• Wireless devices

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tolerance specifications. Confirm RoHS compliance status directly with the supplier or authorized distributor prior to procurement. Ensure the selected variant matches the required operating temperature range and load capacitance parameters for the target circuit design.

Crystals Selection Notes

Select this component when a compact, low-power timing source is required for wearable electronics. The 32.768 kHz frequency is standard for real-time clock division. Evaluate the 60 kOhm ESR against the oscillator circuit requirements to ensure stable startup. Consider the SMD package dimensions for PCB layout constraints in miniaturized form factors.

Crystals Part Context

This part belongs to the KX-327NHT series of super ultra-miniature quartz crystals manufactured by Geyer Electronic America, Inc. The series is specifically engineered for high-volume consumer electronics requiring small footprints. It represents a specialized subset of tuning fork crystals focused on miniaturization while maintaining standard timing frequencies.

Crystals Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify pin compatibility and electrical parameters such as ESR and load capacitation before substituting. Ensure any replacement maintains the same frequency stability and temperature range specifications.