QT325S-26.000MEEB-T

Overview

The QST QT325S-26.000MEEB-T is a quartz crystal resonator operating at a fundamental frequency of 26 MHz. It features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 80 Ohms. The component exhibits a frequency tolerance of ±10 ppm within the industrial temperature range of -20°C to +70°C. It utilizes a 4-SMD, no-lead package with dimensions of 3.2mm x 2.5mm x 0.7mm, designed for surface mount applications requiring precise timing signals.

Feature Summary

• Provides stable oscillation at 26 MHz with high frequency accuracy
• Utilizes a compact 4-SMD no-lead package for automated assembly
• Maintains specified performance across standard industrial temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing references
• Industrial control system oscillators

Procurement Notes

Verify the specific suffix 'EEB' against official QST documentation to confirm the exact temperature range and stability specifications, as suffix variations define critical electrical parameters. Ensure compatibility with existing PCB footprint and reflow profiles. Cross-reference the manufacturer's latest datasheet to validate RoHS compliance and lead-free status before finalizing procurement orders.

Selection Notes

Select this component when a 26 MHz reference is required with ±10 ppm stability in industrial environments. Compare ESR and load capacitance values against the oscillator circuit design requirements. Evaluate the 4-SMD package size constraints relative to available board space. Consider thermal performance if the application operates near the upper limits of the specified temperature range.

Part Context

This part belongs to the QT325S family of surface-mount quartz crystals from QST. These devices are engineered for general-purpose timing applications where small form factors are essential. The family offers various frequency options and stability grades, allowing designers to balance cost and performance requirements for consumer electronics and industrial equipment.

Replacement Considerations

Direct substitutes must match the 26 MHz frequency, 18 pF load capacitance, and 4-SMD package dimensions. Verify that alternative manufacturers offer equivalent ±10 ppm stability within the same temperature range. Check for pinout compatibility and ensure the replacement part meets the same mechanical height restrictions.