7R-25.000MDDE-T

Crystals Overview

The 7R-25.000MDDE-T is a fundamental mode quartz crystal manufactured by TXC Corporation, designed for surface-mount applications. It operates at a nominal frequency of 25 MHz with a frequency stability of ±20 ppm. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 150 Ohms. It utilizes a glass-sealed package in a 4-SMD, no-lead configuration, ensuring robust performance within the specified operational parameters.

Crystals Feature Summary

• Fundamental oscillation mode operation
• Glass-sealed construction for environmental protection
• Surface-mount design without leads

Crystals Applications

• General clock signal generation
• Microcontroller timing circuits
• Communication interface synchronization

Crystals Procurement Notes

Verify the specific package dimensions and terminal configuration against the official datasheet before integration. Confirm that the 150 Ohm ESR aligns with the oscillator circuit requirements to ensure stable startup. Ensure the selected variant matches the required frequency tolerance and load capacitance specifications for the target application.

Crystals Selection Notes

Select this component when a fundamental mode crystal with glass sealing is required for space-constrained designs. The 4-SMD no-lead form factor supports automated assembly processes. Consider the 150 Ohm ESR value when designing the load capacitors to achieve the precise 12 pF system requirement.

Crystals Part Context

This part belongs to the TXC 7R series of SMD glass-sealed crystals. The series covers frequencies from 20 MHz to 64 MHz with varying stability options. The 7R designation indicates a specific package style optimized for high-volume surface-mount manufacturing while maintaining reliable electrical characteristics.

Crystals Replacement Considerations

Direct substitutes must match the 25 MHz frequency, 12 pF load capacitance, and 4-SMD no-lead package. Verify that alternative components support the same 150 Ohm ESR and ±20 ppm stability to maintain circuit compatibility.