QT252S-26.000MEEV-T

Overview

The QT252S-26.000MEEV-T is a quartz crystal resonator manufactured by QST Products, LLC (TXC Corporation). It operates at a fundamental frequency of 26 MHz with a load capacitance of 8 pF. The component offers a frequency tolerance and stability of ±10 ppm. It is housed in a 4-pin surface-mount device (SMD) package with no leads, specifically the 2520 metric size. The unit features an impedance of 100 Ohms and supports an operating temperature range of -20°C to +70°C.

Feature Summary

• Fundamental mode quartz crystal operation for stable timing signals
• Surface-mount construction with leadless four-terminal design
• High frequency stability within specified industrial temperature limits

Applications

• Microcontroller clock sources
• Communication module timing references
• Embedded system oscillators

Procurement Notes

Verify manufacturer designation as QST Products, LLC or TXC Corporation when sourcing. Confirm the specific suffix MEEV-T matches the required 8 pF load capacitance and ±10 ppm stability specifications. Ensure the 4-SMD no-lead package footprint aligns with PCB layout requirements. Cross-reference datasheets for thermal handling guidelines during soldering processes.

Selection Notes

Select this component when a 26 MHz fundamental frequency is required with tight ±10 ppm stability constraints. The 8 pF load capacitance must match the oscillator circuit design. Consider the -20°C to +70°C temperature range against environmental conditions. The SMD form factor suits automated assembly processes requiring compact footprints.

Part Context

This part belongs to the QT252S series of seam-seal quartz crystals. The series typically includes variants with different frequencies, load capacitances, and stability ratings. The 2520 package size indicates a standard small-form-factor component suitable for space-constrained electronic designs.

Replacement Considerations

Compatible substitutes include QT252S-26.000MEIV-T offering ±20 ppm stability and extended temperature ranges. Other variants like QT252S-26.000MDDV-T provide different stability profiles. Verify pin compatibility and load capacitance before substitution.