12.85568

Crystals Overview

The Geyer Electronic America, Inc. model 12.85568 is a quartz crystal component designed for frequency control applications. It operates at a fundamental frequency of 12.85568 MHz with a specified tolerance of ±120 ppm. The device utilizes an 8 pF load capacitance and exhibits an equivalent series resistance (ESR) of 100 Ohms. It is packaged in a compact 4-SMD, No Lead surface-mount configuration, suitable for integration into space-constrained electronic circuits requiring precise timing signals.

Crystals Feature Summary

• Provides stable frequency generation using quartz crystal technology
• Designed for surface-mount assembly via a leadless four-terminal package
• Engineered to support standard load capacitance requirements

Crystals Applications

• General-purpose digital circuit timing
• Microcontroller clock sources
• Consumer electronics signal processing

Crystals Procurement Notes

Verify the specific load capacitance and tolerance requirements against the target circuit design before procurement. Confirm that the 4-SMD no-lead package dimensions align with the PCB footprint constraints. Ensure the operating environment remains within the specified thermal limits for the quartz material to maintain the stated frequency stability over time.

Crystals Selection Notes

Select this component when a fixed frequency source near 12.85 MHz is required without active oscillator circuitry. Consider the ±120 ppm tolerance for system-level clock accuracy budgets. Evaluate the 100 Ohm ESR against the driving capability of the host microcontroller or logic gate to ensure reliable oscillation startup and sustained operation under all load conditions.

Crystals Part Context

This part belongs to the broader category of passive frequency control components manufactured by Geyer Electronic America, Inc. Unlike active oscillators, this quartz crystal requires an external circuit to generate a clock signal. It serves as a foundational element in timing architectures where cost-effective, high-stability frequency references are prioritized over programmable features.

Crystals Replacement Considerations

Substitutes must match the 12.85568 MHz nominal frequency, 8 pF load capacitance, and 4-SMD no-lead package outline. Verify that alternative suppliers offer comparable ±120 ppm tolerance and similar ESR characteristics to ensure electrical compatibility.