QT216S-20.000MEIC-T

Overview

The QT216S-20.000MEIC-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 20 MHz and utilizes a four-terminal SMD package with no lead construction. The component features a load capacitance of 10 pF and exhibits a frequency tolerance of ±10 ppm at 25°C, with stability extending to ±20 ppm across the -40°C to +85°C temperature range. Its compact physical dimensions measure 2.0 mm by 1.6 mm by 0.5 mm, facilitating integration into space-constrained electronic designs requiring precise clock signals.

Feature Summary

• Seam-sealed ceramic construction ensures environmental protection and long-term reliability
• Low-profile surface-mount design optimizes board space utilization
• Stable frequency performance maintained across extended industrial temperature ranges

Applications

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

Procurement Notes

Verify the specific suffix 'IC' against official QST documentation to confirm exact electrical characteristics and packaging specifications. Ensure compatibility with reflow soldering profiles specified in the datasheet. Confirm that the 10 pF load capacitance aligns with the target circuit requirements before finalizing procurement orders.

Selection Notes

Select this component when a 20 MHz reference signal is required within tight spatial constraints. Consider the ±10 ppm tolerance for standard timing applications. Evaluate the 2.0x1.6mm footprint against available PCB real estate. Verify thermal stability needs against the -40 to +85C operational range provided by the seam-sealed package.

Part Context

This part belongs to the QT216S series of ultra-miniature crystals from QST. The series is characterized by low profile and small footprint options suitable for modern portable electronics. Similar variants exist with different frequencies and tolerance levels, sharing the same mechanical envelope and general construction methodology.

Replacement Considerations

Direct substitutes include other 20 MHz crystals with identical 2.0x1.6mm dimensions and 10pF load capacitance. Verify pinout compatibility and equivalent ESR values. Cross-reference with TXC Corporation equivalents if supply chain diversification is required.