QT161S-40.000MEEV-T

Overview

The QT161S-40.000MEEV-T is a surface-mount crystal oscillator manufactured by QST. It operates at a fundamental frequency of 40 MHz with a frequency stability and tolerance of ±10 ppm. The component features a load capacitance of 8 pF and utilizes a 4-SMD, No Lead package configuration. Physical dimensions are specified as 1.6 mm in length, 1.2 mm in width, and 0.35 mm in height. This device serves as a precise timing source for electronic circuits requiring stable clock signals.

Feature Summary

• Provides accurate frequency output for timing applications
• Designed for low-power embedded system integration
• Utilizes surface-mount technology for automated assembly

Applications

• Timing source in low-power embedded designs
• Clock signal generation for microcontroller systems
• Frequency reference for communication modules

Procurement Notes

Verify the complete part number including suffixes to ensure correct specifications. Confirm package type and mounting style match design requirements. Check manufacturer documentation for detailed electrical characteristics and reliability data before integration into final products.

Selection Notes

Select this component when a 40 MHz frequency with ±10 ppm stability is required. Ensure the 8 pF load capacitance aligns with circuit design parameters. Verify physical footprint compatibility with PCB layout constraints for the 1.6x1.2 mm SMD package.

Part Context

This part belongs to the QT161S series from QST Products, LLC, a supplier of timing devices established in 2012. The series includes various frequencies such as 32 MHz and 48 MHz variants, all sharing similar surface-mount packaging and performance characteristics for general timing applications.

Replacement Considerations

Direct substitutes include other 40 MHz crystals with identical 8 pF load capacitance and ±10 ppm tolerance. Compatible alternatives must match the 4-SMD No Lead package dimensions of 1.6x1.2x0.35 mm to ensure mechanical fit.