QT161S-26.000MEEC-T

Overview

The QST QT161S-26.000MEEC-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 26 MHz. It features a compact 4-SMD, no-lead package with dimensions of 1.60mm x 1.20mm and a maximum height of 0.40mm. The component exhibits a frequency tolerance of ±10 ppm within an operating temperature range of -20°C to +70°C. It utilizes a load capacitance of 9 pF and has an equivalent series resistance (ESR) of 100 Ohms.

Feature Summary

• Compact 1.6mm x 1.2mm surface-mount footprint for space-constrained designs
• High frequency stability of ±10 ppm over standard industrial temperature ranges
• Fundamental operating mode ensuring precise timing signals

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix 'MEEC' against official QST documentation to confirm the exact temperature range (-20°C to +70°C) and tolerance (+/- 10 ppm). Ensure compatibility with the required load capacitance of 9 pF in the target circuit design. Cross-reference the package dimensions (1.6x1.2x0.40mm) with PCB footprints to prevent assembly errors.

Selection Notes

Select this component when a small form factor SMD crystal is required for 26 MHz applications. The ±10 ppm tolerance suits general-purpose digital systems where moderate precision is sufficient. Consider the -20°C to +70°C operating range for standard commercial environments rather than extreme industrial conditions.

Part Context

This part belongs to the QT161S series of thin, low-profile quartz crystals manufactured by QST. The series offers various frequency and tolerance options within a standardized 1612 package size, facilitating easy integration into modern consumer electronics and portable devices requiring reliable clock generation.

Replacement Considerations

Direct substitutes must match the 1612 package, 26 MHz frequency, 9 pF load capacitance, and ±10 ppm tolerance. Verify that alternative manufacturers offer components with identical ESR specifications and thermal characteristics to ensure circuit performance parity.