12.88668

Crystals Overview

The Geyer Electronic America, Inc. model 12.88668 is a fundamental mode quartz crystal oscillator belonging to the KX-7 series. It operates at a nominal frequency of 27.0 MHz with a frequency tolerance of ±50 ppm at +25°C. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. It utilizes a ceramic surface-mount package with four pads, measuring 3.2 mm x 2.5 mm x 0.8 mm. The device is designed for operation within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental mode quartz crystal construction
• Surface-mount ceramic package with four pads
• Designed for high-frequency stability applications

Crystals Applications

• Frequency control in communication systems
• Clock generation for microprocessors
• Timing reference in consumer electronics

Crystals Procurement Notes

Verify that the specific part number matches the required frequency tolerance and load capacitance specifications. Confirm the operating temperature range aligns with the intended application environment. Ensure the surface-mount footprint dimensions are compatible with the PCB design. Check for any specific handling requirements related to the ceramic package.

Crystals Selection Notes

Select this component when a 27.0 MHz fundamental frequency is required with moderate stability. Consider the 12 pF load capacitance for circuit matching. Evaluate the ±50 ppm tolerance against system timing requirements. Assess the SMD package size constraints for the final assembly.

Crystals Part Context

This part belongs to the KX-7 series of surface-mount crystals from Geyer Electronic America, Inc. The series offers various frequencies within the 12.88667 to 27 MHz range. These components are designed for compact electronic designs requiring reliable frequency control.

Crystals Replacement Considerations

Direct substitutes include other 27.0 MHz fundamental mode SMD crystals with identical 12 pF load capacitance and similar ESR values. Verify mechanical footprint compatibility before substitution.