12.87132

Crystals Overview

The Geyer Electronic America, Inc. model 12.87132 is a quartz crystal unit 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 load capacitance of 7 pF and an equivalent series resistance (ESR) of 50 kOhms. It is housed in a 4-SMD, flat lead package with a maximum seated height of 0.055 inches. Classified as a Class III life-supporting device, it serves as a tuning fork crystal suitable for precision timing circuits.

Crystals Feature Summary

• Precision frequency stability for accurate timekeeping
• Surface-mount design for automated assembly
• Low power consumption characteristics

Crystals Applications

• Real-time clock circuits
• Wearable electronic devices
• Medical monitoring equipment

Crystals Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required load capacitance and frequency tolerance specifications. Confirm that the component meets Class III life-supporting device standards if utilized in critical systems. Cross-reference the datasheet parameters against system requirements before finalizing procurement orders.

Crystals Selection Notes

Select this component based on its 32.768 kHz operating frequency and ±20 ppm tolerance. Ensure the circuit design accommodates the 7 pF load capacitance and 50 kOhm ESR. The 4-SMD flat lead package requires appropriate PCB footprint considerations for reliable soldering and mechanical stability.

Crystals Part Context

This part belongs to the family of tuning fork crystals manufactured by Geyer Electronic. These components are widely used in applications requiring low-frequency, high-stability oscillation sources. The manufacturer specializes in quartz crystals and resonators, providing solutions for various frequency control needs across multiple industries.

Crystals Replacement Considerations

Consult official substitution lists for compatible parts with matching frequency and package dimensions.