12.95178

Overview

The Geyer Electronic America, Inc. model 12.95178 is a ceramic surface-mount oscillator operating at a frequency of 27 MHz. It utilizes HCMOS output logic and supports a supply voltage range from -0.5V to 7V. The device features a tri-state output enable function for power management control. It is housed in a compact 4-SMD, no-lead package designed for automated assembly processes.

Feature Summary

• HCMOS output interface compatible with standard digital logic families
• Tri-state output capability allows for bus sharing and power reduction
• Ceramic construction provides stable frequency performance
• Surface-mount package facilitates high-volume PCB integration

Applications

• Digital clock signal generation for microcontrollers
• Synchronization sources for communication interfaces
• Timing references for embedded system processors
• Clock drivers for logic gate arrays

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required voltage levels and tolerance specifications. Confirm that the 4-SMD footprint matches the target PCB layout dimensions. Check for any recent updates to the electrical characteristics or recommended soldering profiles prior to finalizing component selection.

Selection Notes

Select this component when a cost-effective ceramic oscillator is required for 27 MHz applications. Ensure the HCMOS output swing aligns with the input requirements of the downstream circuitry. Consider the operating temperature range of -20°C to 70°C to verify suitability for the intended environmental conditions during design phase.

Part Context

This part belongs to the standard XO (Crystal Oscillator) series manufactured by Geyer Electronic America, Inc. The company specializes in frequency control products including quartz crystals and resonators. This specific model represents a widely used passive oscillator solution for general-purpose timing needs in consumer and industrial electronics.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify pinout compatibility and electrical parameters before swapping components. Generic replacements may differ in load capacitance or drive strength requirements.