12.94474

Overview

The Geyer Electronic America, Inc. part number 12.94474 is a standard crystal oscillator (XO) designed for surface-mount applications. It operates at a fixed frequency of 27.0000 MHz with a frequency stability of ±100 ppm. The component utilizes a 4-SMD, no-lead package configuration, measuring 7.00mm in length and 5.00mm in width, with a maximum seated height of 1.40mm. It supports an operating temperature range from -40°C to +85°C and is classified under the ECCN code EAR99.

Feature Summary

• Provides stable clock signals via a standard XO architecture
• Designed for direct surface-mount integration without lead structures
• Operates reliably across extended industrial temperature ranges

Applications

• General-purpose digital circuit timing references
• Microcontroller clock source generation
• Communication interface synchronization

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required voltage levels and output logic types. Confirm that the 4-SMD footprint matches the target PCB design constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly process.

Selection Notes

Select this component when a 27 MHz reference signal is required for surface-mount designs. Ensure the application environment remains within the specified -40°C to +85°C operational range. Verify that the ±100 ppm stability meets the system's timing accuracy requirements before integration into the final product design.

Part Context

This oscillator belongs to the broader category of frequency control products manufactured by Geyer Electronic America, Inc. The company specializes in quartz crystals, HCMOS oscillators, and ceramic resonators. This specific model represents a standard solution for providing precise timing signals in compact electronic assemblies requiring reliable frequency generation.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Cross-reference pinout and electrical specifications carefully when evaluating potential substitute components to ensure functional equivalence.