12.95149

Overview

The Geyer Electronic America, Inc. model 12.95149 is a ceramic surface-mount oscillator designed for frequency control applications. It operates at a standard frequency of 18.432 MHz and utilizes HCMOS output logic levels. The device supports a wide supply voltage range from -0.5V to 7V, ensuring compatibility with various digital circuits. It features a tri-state output capability, allowing for an output enable function to manage bus contention or power states. The component is housed in a compact 4-SMD, no-lead package, facilitating automated assembly and integration into space-constrained printed circuit boards.

Feature Summary

• HCMOS output interface for standard digital logic compatibility
• Tri-state output functionality with enable control
• Wide operating supply voltage range
• Surface-mount construction for automated placement

Applications

• General-purpose clock signal generation for microprocessors
• Timing reference for communication interfaces
• Synchronization source for digital logic circuits
• Clock input for memory modules

Procurement Notes

Verify the specific datasheet edition and revision level prior to ordering, as specifications are subject to change. Confirm that the 4-SMD package dimensions match your PCB footprint requirements. Ensure that the HCMOS output swing aligns with the input thresholds of the receiving components within the specified voltage range. Cross-reference the part number with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when a stable 18.432 MHz clock source is required in a small form factor. The wide voltage tolerance makes it suitable for systems with varying power rails. Consider the tri-state feature if multiple clocks share a common bus structure. Evaluate thermal management requirements based on the SMD package's heat dissipation characteristics relative to the ambient environment.

Part Context

This oscillator belongs to Geyer Electronic's line of frequency control products, which includes quartz crystals and resonators. The manufacturer specializes in timekeeping components for demanding industrial and commercial applications. The 12.95149 model represents a standardized solution for providing precise timing signals in embedded systems where size and reliability are critical factors.

Replacement Considerations

Consult official substitution matrices for compatible alternatives. Verify electrical parameters such as frequency stability, load capacitance, and output drive strength before substituting. Ensure mechanical compatibility regarding package type and pin configuration. Check for any changes in operating temperature ranges or supply voltage requirements.