7M25000018

Crystals Overview

The TXC Corporation 7M25000018 is a surface-mount quartz crystal resonator designed for precision timing applications. It operates at a nominal frequency of 25 MHz with a load capacitance of 12 pF and a frequency tolerance of ±30 ppm. The component exhibits an equivalent series resistance (ESR) of 50 Ω and supports a drive level of 100 µW. It functions within a temperature range of -40°C to +85°C, featuring a parallel fundamental AT-cut design. The physical package measures 3.2 mm in length, 2.5 mm in width, and 0.7 mm in height, utilizing gold-plated nickel-barrier terminals for reliable SMD integration.

Crystals Feature Summary

• AT-cut parallel fundamental quartz construction ensures stable oscillation characteristics
• Gold-plated nickel barrier terminal finish provides robust surface mount reliability
• Compact 3.2mm x 2.5mm SMD footprint facilitates dense circuit board layouts

Crystals Applications

• USB 2.0 high-speed interface clock generation
• Digital signal processor (DSP) controller timing
• Motor control system synchronization

Crystals Procurement Notes

Verify the specific load capacitance requirement of 12 pF against the target oscillator circuit design to ensure frequency accuracy. Confirm that the operating environment remains within the specified -40°C to +85°C range. Ensure the PCB layout accommodates the 3.2mm x 2.5mm SMD package dimensions and utilizes appropriate soldering profiles for gold/nickel terminals to maintain mechanical integrity and electrical performance during assembly.

Crystals Selection Notes

Select this component when a 25 MHz reference with ±30 ppm stability is required for digital logic or communication interfaces. Consider the 12 pF load capacitance constraint; if the application requires different loading, alternative models within the 7M series must be evaluated. The 50 Ω ESR specification should align with the driving capability of the host microcontroller or oscillator IC to prevent overdriving or startup failures.

Crystals Part Context

This part belongs to the TXC 7M series of standard surface-mount crystals. These components are engineered for general-purpose timing needs in consumer electronics and industrial equipment. The series offers various frequency and packaging options, with the 7M25000018 specifically addressing common 25 MHz requirements found in data transmission and processing subsystems.

Crystals Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.