12.95512

Overview

The Geyer Electronic America, Inc. model 12.95512 is a standard HCMOS crystal oscillator operating at 40 MHz. It functions within a supply voltage range of 1.8V to 3.6V and features a tri-state output enable capability. The device utilizes a 4-SMD, no-lead package with dimensions of 3.2mm x 2.5mm. Key electrical specifications include a frequency stability of ±50ppm and an equivalent series resistance of 60 ohms. It supports base harmonic operation modes and is rated for temperatures between -40°C and 105°C.

Feature Summary

• Provides stable 40 MHz signal generation using HCMOS logic levels
• Features tri-state output control for system power management
• Designed for surface mount integration in compact electronic assemblies

Applications

• Digital clock signal distribution in microcontroller systems
• Synchronization sources for high-speed data communication interfaces
• Timing references in portable consumer electronics devices

Procurement Notes

Verify the specific ordering suffix required for your packaging needs, such as tape and reel or cut tape options. Confirm that the 40 MHz frequency and HCMOS output compatibility match your circuit design requirements before finalizing the purchase order. Ensure the 1.8V to 3.6V voltage range aligns with your system's power supply architecture.

Selection Notes

Select this component when a precise 40 MHz timing reference is required for digital logic circuits. The HCMOS output interface ensures direct compatibility with standard CMOS inputs without additional buffering. Consider the 4-SMD footprint for space-constrained PCB layouts and verify that the ±50ppm stability meets your application's jitter tolerance requirements.

Part Context

This oscillator belongs to Geyer Electronic's standard XO series, designed for general-purpose frequency control applications. It complements their broader portfolio of quartz crystals and ceramic resonators. The 40 MHz variant serves as a common clock source for various digital processing units and communication modules requiring reliable timing signals.

Replacement Considerations

Direct substitutes must match the 40 MHz frequency, HCMOS output type, and 4-SMD no-lead package dimensions. Verify voltage compatibility within the 1.8V to 3.6V range and ensure equivalent frequency stability specifications are maintained for seamless integration into existing designs.