QT532G-27.000MAHJ-T

Overview

The QT532G-27.000MAHJ-T is a quartz crystal oscillator manufactured by QST, operating at a nominal frequency of 27 MHz. It features a surface-mount package with dimensions of 5.0 x 3.2 x 1.2 mm and utilizes a glass-seal construction. The component exhibits a frequency tolerance of ±30 ppm at +25°C and ±30 ppm across the -40 to +85°C temperature range. It has a load capacitance of 18 pF and an equivalent series resistance of 50 Ohms. The device is designed for two-pad SMD mounting without leads.

Feature Summary

• Glass-seal construction for environmental stability
• Surface-mount design compatible with automated assembly
• Wide operating temperature range capability

Applications

• Clock signal generation in digital circuits
• Frequency reference for communication modules
• Timing source for microcontroller systems

Procurement Notes

Verify the specific suffix 'MAHJ-T' against official QST documentation to confirm exact electrical parameters and packaging details. Ensure compatibility with existing PCB footprint and reflow soldering profiles. Cross-reference datasheets from authorized distributors to validate RoHS compliance and lead-free status before procurement.

Selection Notes

Select this component when a 27 MHz reference with ±30 ppm stability is required within a 5.0x3.2mm SMD footprint. Consider the 18pF load capacitance requirement for circuit matching. Evaluate thermal performance needs against the -40 to +85°C operational range specified for this glass-seal variant.

Part Context

This part belongs to the QT532G series of quartz crystals from QST. The series offers various frequencies and package options. This specific model provides a standard 27 MHz output suitable for general-purpose timing applications requiring moderate stability and compact size.

Replacement Considerations

Direct substitutes may include other 27 MHz crystals with identical 5.0x3.2mm dimensions, 18pF load capacitance, and ±30 ppm tolerance. Verify pinout compatibility and mounting style. Check manufacturer datasheets for equivalent parts from other suppliers offering similar glass-seal technology.