DF18CC1-6.7458MHZ-T

Crystals Overview

The DF18CC1-6.7458MHZ-T is a surface-mount crystal from MMD's D Series, operating at a nominal frequency of 6.7458 MHz. It features a frequency tolerance of ±15ppm and stability of ±30ppm with an 18pF load capacitance. The component utilizes HC-49/US packaging, measuring 11.70mm x 5.00mm x 4.50mm max. It operates in fundamental mode with an ESR of 90 Ohms (per specific datasheet) or 40 Ohms (per distributor data), supporting temperatures from -40°C to 85°C.

Crystals Feature Summary

• Surface-mount design utilizing the standard HC-49/US package format for compact integration.
• Fundamental oscillation mode operation ensuring stable frequency generation.
• Compliance with RoHS3 standards and unrestricted REACH status for environmental safety.

Crystals Applications

• Frequency control circuits requiring precise 6.7458 MHz timing references.
• Embedded systems and microcontroller clock sources.
• Communication modules utilizing specific baud rate frequencies.

Crystals Procurement Notes

Verify the Equivalent Series Resistance (ESR) specification carefully, as official documentation indicates 90 Ohms while distributor listings cite 40 Ohms for similar variants. Confirm the exact load capacitance requirement matches your circuit design, as the component is specified for 18pF. Ensure the selected packaging option aligns with your assembly process capabilities.

Crystals Selection Notes

Select this component when a 6.7458 MHz fundamental frequency is required in a surface-mount configuration. The HC-49/US form factor offers compatibility with existing footprints. Consider the ±15ppm tolerance for applications demanding high frequency accuracy. Verify thermal requirements against the -40°C to 85°C operational range before implementation.

Crystals Part Context

This part belongs to MMD's D Series, which provides flexible timing solutions for the frequency control market. Supported by Abracon, the series emphasizes technical design support and supply chain reliability. The DF18CC1 model specifically targets applications needing reliable surface-mount crystals with standardized dimensions.

Crystals Replacement Considerations

DF18CC1-6.000MHZ-T

Crystals FAQ

What is the physical size of the DF18CC1-6.7458MHZ-T?

The component measures 0.461 inches in length, 0.197 inches in width, and has a maximum height of 0.177 inches.

Does this crystal support lead-free soldering processes?

Yes, the component complies with RoHS3 specifications, making it suitable for lead-free manufacturing environments.