DF18CC1-27.000MHZ-T

Crystals Overview

The DF18CC1-27.000MHZ-T is a surface-mount crystal oscillator manufactured by MMD, operating at a nominal frequency of 27 MHz. It features a frequency tolerance of ±15 ppm and stability of ±30 ppm within the specified temperature range. The component utilizes an HC-49/US package with dimensions of 11.7 mm length, 4.8 mm width, and 4.5 mm maximum height. It has a load capacitance of 18 pF and an equivalent series resistance (ESR) of 30 Ohms. Designed for fundamental mode operation, it supports a drive level of 1 mW and functions reliably between -40°C and +85°C.

Crystals Feature Summary

• Surface-mount construction in standard HC-49/US package
• Fundamental mode oscillation with low ESR
• Wide industrial temperature range capability

Crystals Applications

• General-purpose clock signal generation
• Microcontroller system timing
• Communication interface synchronization

Crystals Procurement Notes

Verify manufacturer source to ensure authenticity, as MMD components are supported by Abracon's supply chain. Confirm RoHS compliance status through official documentation before integration. Check datasheet revisions for any updates to mechanical or electrical specifications. Ensure storage conditions align with manufacturer guidelines to maintain performance integrity over time.

Crystals Selection Notes

Select this component when a 27 MHz fundamental frequency is required in a compact SMD form factor. The 18 pF load capacitance must match the circuit design requirements. Consider the ±30 ppm stability limit for applications sensitive to frequency drift over temperature variations. The HC-49/US package allows for automated placement while maintaining robustness comparable to through-hole variants.

Crystals Part Context

This part belongs to the D Series crystals from MMD, which provides flexible timing solutions for the frequency control market. MMD is supported by Abracon, leveraging advanced design technologies and global supply chain capabilities. The DF18CC1 series specifically targets surface-mount applications requiring reliable performance in consumer and industrial electronics.

Crystals Replacement Considerations

Cross-reference with other 27 MHz HC-49/US SMD crystals if availability is constrained. Verify that substitute parts meet identical electrical parameters: 27 MHz, 18 pF load, ±15 ppm tolerance, and 30 Ohm ESR. Ensure replacement packages match the 11.7 x 4.8 x 4.5 mm footprint for board compatibility.