DF18CC1-3.6864MHZ-T

Crystals Overview

The MMD DF18CC1-3.6864MHZ-T is a fundamental frequency crystal resonator operating at 3.6864 MHz. It features a load capacitance of 18 pF and a maximum equivalent series resistance (ESR) of 150 Ohms. The component exhibits a frequency stability of ±15 ppm over the specified temperature range. Designed for surface mount applications, it utilizes the HC-49/US package format. This device serves as a precise timing reference for electronic circuits requiring stable oscillation frequencies.

Crystals Feature Summary

• Provides stable fundamental frequency oscillation at 3.6864 MHz
• Utilizes standard HC-49/US surface mount package configuration
• Supports system timing with 18 pF load capacitance specification

Crystals Applications

• Microcontroller clock source generation
• Communication interface timing references
• General purpose digital circuit synchronization

Crystals Procurement Notes

Verify that the target PCB footprint matches the HC-49/US SMD package dimensions to ensure mechanical compatibility. Confirm that the circuit design provides an 18 pF load capacitance to achieve the specified ±15 ppm frequency accuracy. Check operational temperature requirements against the component's rated range. Ensure supply chain sources provide genuine MMD products to maintain performance reliability.

Crystals Selection Notes

Select this component when a 3.6864 MHz timing reference is required in a surface mount assembly. The HC-49/US form factor offers a balance between electrical performance and mounting convenience compared to through-hole variants. Consider the 150 Ohm ESR limit when designing the oscillator circuit to ensure reliable startup. Evaluate the ±15 ppm stability requirement against the application's tolerance needs before finalizing the part number.

Crystals Part Context

This crystal belongs to the DF18CC1 series from MMD, designed for general-purpose timing applications. The series supports various frequencies within the fundamental mode range. The HC-49/US package is widely adopted in consumer electronics and industrial equipment. MMD manufactures these components to meet industry standards for frequency control devices used in mass production environments.