12.85647

Crystals Overview

The Geyer Electronic America, Inc. model 12.85647 is a quartz crystal resonator designed for frequency control applications. It operates at a fundamental frequency of 19.2 MHz with a specified load capacitance of 7 pF and an equivalent series resistance (ESR) of 80 Ohms. The component exhibits a frequency tolerance of ±10 ppm. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Crystals Feature Summary

• Quartz crystal construction for stable frequency generation
• Surface-mount compatible 4-SMD no-lead package design
• Defined load capacitance and ESR characteristics

Crystals Applications

• Clock signal generation in microcontroller circuits
• Frequency reference for communication modules
• Timing sources for embedded systems

Crystals Procurement Notes

Verify the specific datasheet version from Geyer Electronic to confirm current mechanical dimensions and soldering profiles. Ensure the 7 pF load capacitance matches the oscillator circuit requirements. Check for any RoHS compliance documentation if required by the manufacturing process.

Crystals Selection Notes

Select this component when a 19.2 MHz reference is needed with moderate stability. The 80 Ohm ESR must be compatible with the driving circuit's oscillation conditions. Consider the 4-SMD package size for PCB layout constraints compared to through-hole alternatives.

Crystals Part Context

This part belongs to Geyer Electronic's range of quartz crystals and resonators. The manufacturer specializes in frequency control products including oscillators and filters. The 12.85647 identifier distinguishes this specific frequency and package variant within their catalog.

Crystals Replacement Considerations

Consult official substitution lists or cross-reference databases for direct equivalents. Verify that any alternative maintains the 19.2 MHz frequency, 7 pF load capacitance, and 4-SMD form factor to ensure mechanical and electrical compatibility.