12.88701

Crystals Overview

The Geyer Electronic America, Inc. model 12.88701 is a surface-mount quartz crystal resonator designed for precise frequency control applications. It operates at a fundamental frequency of 40 MHz with a specified load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. The component exhibits a frequency tolerance of ±100 ppm to ensure timing accuracy within defined operational limits. Physically, it utilizes a compact 4-SMD, No Lead package configuration with dimensions measuring 3.20 mm in length and 2.50 mm in width. The maximum seated height is limited to 0.80 mm, facilitating integration into space-constrained printed circuit board layouts while maintaining reliable electrical performance.

Crystals Feature Summary

• Provides stable oscillation at 40 MHz for clock generation
• Compact surface-mount design for automated assembly
• Defined load capacitance and ESR for circuit matching

Crystals Applications

• Microcontroller clock sources
• Communication interface synchronization
• Timing circuits in consumer electronics

Crystals Procurement Notes

Verify the specific datasheet version from Geyer Electronic America, Inc. to confirm current manufacturing status and compliance certifications. Ensure that the 4-SMD package orientation matches the PCB footprint silkscreen. Cross-reference the ±100 ppm tolerance requirement against system timing budgets before finalizing procurement orders to avoid integration issues.

Crystals Selection Notes

Select this component when a 40 MHz reference signal is required with moderate stability needs. The 12 pF load capacitance must align with the oscillator circuit design parameters. Consider the 50 Ohm ESR limit to ensure sufficient drive level compatibility. The small form factor makes it suitable for high-density board designs where vertical space is restricted.

Crystals Part Context

This part belongs to Geyer Electronic America's portfolio of frequency control products, which includes various crystals and oscillators. The manufacturer specializes in quartz-based timing devices for diverse electronic markets. The 12.88701 designation identifies a specific standard frequency variant within their broader catalog of surface-mount resonators.

Crystals Replacement Considerations

Consult official substitution lists from Geyer Electronic America for direct equivalents. Verify pinout compatibility and electrical parameter alignment if considering alternative manufacturers. Ensure that any substitute part meets the same 40 MHz frequency and 12 pF load capacitance requirements.