DF18CC1-24.576MHZ-T

Crystals Overview

The MMD DF18CC1-24.576MHZ-T is a surface-mount crystal from the D Series, operating at a nominal frequency of 24.576 MHz. It utilizes an HC-49/US package with dimensions of 11.7 mm length, 4.8 mm width, and 4.5 mm height. The component features a load capacitance of 18 pF and a frequency tolerance of ±15 ppm at 25°C. Frequency stability is rated at ±30 ppm over the operating temperature range of -40°C to +85°C. Equivalent series resistance (ESR) is specified at 30 Ohms, with a maximum drive level of 1 mW.

Crystals Feature Summary

• Surface-mounted design in standard HC-49/US form factor for automated assembly compatibility
• Fundamental mode operation ensuring stable oscillation within specified electrical parameters
• Compliant with RoHS directives for environmentally safe manufacturing processes

Crystals Applications

• Clock generation for microprocessors and microcontrollers
• Timing references for digital communication interfaces
• Frequency control in consumer electronic devices

Crystals Procurement Notes

Verify that the specific part number matches the required frequency and tolerance specifications before integration. Confirm that the HC-49/US surface mount footprint aligns with the PCB layout guidelines provided in the manufacturer datasheet. Ensure compliance with moisture sensitivity levels and reflow soldering profiles during production to maintain component integrity and performance reliability.

Crystals Selection Notes

Select this component when a 24.576 MHz fundamental frequency is required with ±15 ppm initial tolerance. The 18 pF load capacitance must match the oscillator circuit design requirements. Consider the 30 Ohm ESR value for impedance matching. The wide operating temperature range supports applications requiring stability between -40°C and +85°C. Verify that the surface mount package fits within the available board space constraints.

Crystals Part Context

This crystal belongs to the D Series by MMD, which offers HC-49/US surface-mounted crystals. The series provides fundamental or third overtone options across a wide frequency range. MMD, supported by Abracon, focuses on flexible timing solutions for the frequency control market. This specific model represents a standard commercial-grade component suitable for general-purpose electronic applications requiring precise clock signals.

Crystals Replacement Considerations

Ecliptek part E1SJA18-16.9344M TR is listed as a similar alternative, though it differs in frequency. Direct substitutes require matching the 24.576 MHz frequency, 18 pF load capacitance, and HC-49/US SMD package. Verify electrical parameters against the original specification sheet before substitution.