QT532G-27.000MAGK-T

Overview

The QT532G-27.000MAGK-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 27 MHz with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 50 Ohms. The component utilizes a glass-sealed package measuring 5.0 x 3.2 mm in dimensions. Frequency stability is specified at ±30 ppm within the -20°C to +70°C temperature range and ±50 ppm across the extended -40°C to +85°C industrial range. This configuration ensures reliable timing performance for digital circuits requiring precise clock signals.

Feature Summary

• Glass-sealed construction provides enhanced environmental protection and long-term stability compared to standard ceramic packages.
• Compact 5.0 x 3.2 mm SMD footprint allows for efficient board space utilization in modern electronic designs.
• Dual tolerance specifications support both commercial (-20°C to +70°C) and industrial (-40°C to +85°C) operating environments.

Applications

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

Procurement Notes

Verify the ordering suffix 'MAGK' against official QST documentation to confirm specific frequency tolerance and temperature range parameters. Ensure compatibility with reflow soldering profiles recommended for glass-sealed crystals. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the 20pF load capacitance matches the oscillator circuit requirements of the target application.

Selection Notes

Select this component when a 27 MHz reference is required with strict size constraints. The glass-seal variant offers superior stability over standard epoxy-sealed alternatives. Evaluate the thermal environment to determine if the ±30 ppm or ±50 ppm tolerance specification is sufficient. Ensure the PCB layout supports the 5.0 x 3.2 mm package dimensions and appropriate grounding for optimal noise immunity.

Part Context

The QT532G series represents QST's line of miniature quartz crystals. These components are engineered for high-frequency stability in compact form factors. The series includes various frequency options and package types to meet diverse industry standards. The glass-sealed variants are specifically designed for applications demanding higher reliability and environmental resilience.

Replacement Considerations

Direct substitutes include other manufacturers' 27 MHz crystals in 5.0x3.2mm packages with 20pF load capacitance. Verify equivalent ESR and stability ratings before substitution. Check for pin-out compatibility and mounting pad specifications. Consider thermal stability differences between glass-sealed and ceramic-sealed alternatives.