QT216S-54.000METJ-T

Overview

The QT216S-54.000METJ-T is a surface-mount quartz crystal resonator manufactured by QST, designed for precise timing applications in electronic circuits. This component operates at a fundamental frequency of 54 MHz with a specified frequency tolerance of ±10 ppm. It features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 90 Ohms. The device utilizes a 4-SMD, no-lead package with body dimensions measuring 2.0 mm by 1.6 mm. These specifications ensure stable oscillation within standard circuit configurations requiring compact form factors.

Feature Summary

• Compact 2.0x1.6 mm surface-mount footprint suitable for space-constrained designs
• High frequency stability of ±10 ppm for reliable timing performance
• Low equivalent series resistance of 90 Ohms for efficient circuit operation

Applications

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

Procurement Notes

Verify the complete part number including suffixes to confirm specific load capacitance and tolerance requirements. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Cross-reference official datasheets for operating temperature ranges and storage conditions before integration into final assemblies.

Selection Notes

Select this component when a 54 MHz fundamental frequency is required with tight stability constraints. Consider the 18 pF load capacitance requirement for oscillator circuit design. Evaluate the 4-SMD package size against available board real estate and manufacturing capabilities.

Part Context

This crystal belongs to QST's QT216S series of surface-mount resonators. The series offers various frequencies and package options for general-purpose timing needs. QST specializes in timing devices and integrated circuits, providing components for consumer electronics and industrial applications.

Replacement Considerations

Direct replacements must match the 54 MHz frequency, 18 pF load capacitance, and 4-SMD 2.0x1.6 mm package. Verify ESR and stability specifications to ensure circuit compatibility without redesign.