12.94659

Overview

The Geyer Electronic America, Inc. model 12.94659 is a ceramic surface-mount oscillator designed for standard frequency generation applications. It operates at a nominal frequency of 40 MHz and utilizes HCMOS logic levels for signal output compatibility with digital circuits. The device features a tri-state output configuration, allowing for an enable function to control signal transmission when required by the system design. It is housed in a compact 4-SMD, no-lead package suitable for automated assembly processes. The unit supports a supply voltage of 3.6 V and is characterized as a standard crystal oscillator (XO) type.

Feature Summary

• HCMOS compatible output interface for direct digital integration
• Tri-state output capability for system bus management
• Ceramic SMD construction for robust surface-mount assembly

Applications

• General purpose clock signal generation for digital systems
• Embedded controller timing references
• Communication interface synchronization

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure the correct voltage and output logic level are selected. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint requirements. Check for any recent updates to the datasheet regarding operating temperature ranges or reliability standards before finalizing the bill of materials.

Selection Notes

Select this component when a 40 MHz reference is required with HCMOS drive strength. Ensure the application environment supports the specified 3.6 V supply voltage. Consider the tri-state feature if multiple clocks share a common load or require controlled activation. Verify thermal constraints for the ceramic package in the intended enclosure.

Part Context

This part belongs to the family of ceramic surface-mount oscillators manufactured by Geyer Electronic America, Inc. These components are designed to replace traditional through-hole crystals in modern high-density electronics. The series offers standardized frequencies and logic outputs to simplify design-in processes for consumer and industrial electronic devices requiring precise timing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.