DF18CC1-13.500MHZ-T

Crystals Overview

The DF18CC1-13.500MHZ-T is a surface-mount MHz crystal manufactured by MMD, part of the D series. It operates at a nominal frequency of 13.5 MHz with a frequency tolerance of ±15ppm and stability of ±30ppm. The component features an 18pF load capacitance and a maximum equivalent series resistance (ESR) of 50 Ohms. Designed for fundamental mode operation, it utilizes an HC-49/US package measuring 11.70mm x 5.00mm x 4.50mm. It supports a drive level of 1mW max and functions within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Surface mount construction in standard HC-49/US footprint
• Fundamental oscillation mode for precise timing
• RoHS compliant manufacturing process

Crystals Applications

• Microcontroller clock sources
• Communication interface circuits
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific ESR value against the manufacturer's datasheet chart for the 13.5 MHz frequency band, as specifications may vary by production batch. Confirm that the application circuit drive level does not exceed the 1mW maximum rating to ensure long-term frequency stability. Ensure the PCB layout accommodates the 11.70mm length and 5.00mm width dimensions of the HC-49/US package for proper surface mounting.

Crystals Selection Notes

Select this component when a surface-mount solution is required for 13.5 MHz applications. The 18pF load capacitance must match the oscillator circuit requirements. Consider the ±15ppm tolerance for precision timing needs. The HC-49/US form factor allows for compatibility with existing through-hole footprints adapted for SMT. Verify thermal performance within the -40°C to +85°C operating range.

Crystals Part Context

This crystal belongs to the D series from MMD, which offers wide frequency range options. The series includes various frequencies and tolerances, all sharing the HC-49/US surface-mount package. MMD provides these components for flexible global supply chains, supporting diverse timing control markets with RoHS-compliant products.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49/US SMD crystals with identical 13.5 MHz frequency, 18pF load capacitance, and ±15ppm tolerance. Verify ESR and drive level compatibility before substitution.