QT532S-10.000MEEQ-T

Overview

The QST QT532S-10.000MEEQ-T is a surface-mount quartz crystal resonator operating at a nominal frequency of 10 MHz. It features a frequency stability and tolerance of ±10 ppm, with a load capacitance of 10 pF. The component utilizes an AT-cut fundamental mode and exhibits an equivalent series resistance (ESR) of 80 Ohms. Designed for robust performance, it operates within a temperature range of -20°C to +70°C. The device is housed in a compact 4-SMD, No Lead package measuring 5.0 mm x 3.2 mm x 0.9 mm, suitable for automated assembly processes.

Feature Summary

• Compact 4-SMD no-lead surface mount design for efficient PCB space utilization
• High frequency stability of ±10 ppm ensuring precise timing control
• AT-cut fundamental resonance mode for stable oscillation characteristics
• Compliant with RoHS3 standards for environmental safety

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics internal clocks
• Industrial control system oscillators

Procurement Notes

Verify the specific suffix MEEQ-T against the manufacturer's current datasheet to confirm pin configuration and tape/reel specifications. Ensure the selected variant matches the required load capacitance of 10 pF for circuit compatibility. Cross-reference the 4-SMD package dimensions with the target PCB footprint to guarantee mechanical fit. Confirm that the -20°C to +70°C operating range aligns with the application's thermal environment requirements before finalizing procurement.

Selection Notes

Select this component when a 10 MHz reference with ±10 ppm stability is required in a small form factor. The 10 pF load capacitance must match the oscillator circuit design to achieve accurate frequency output. Consider the 80 Ohm ESR value for drive level sensitivity and power consumption constraints. The 4-SMD package offers better mechanical reliability compared to older leaded styles, making it suitable for high-density board layouts where space is limited.

Part Context

This part belongs to the QT532S series of quartz crystals manufactured by QST. The series is characterized by its small 5.0x3.2 mm footprint, catering to modern miniaturization trends in electronic devices. These components are designed as direct replacements for larger through-hole or older SMD crystals, providing improved solder joint reliability and consistent performance across various consumer and industrial applications requiring stable 10 MHz timing.

Replacement Considerations

Public confirmed substitute part numbers include 445I23D10M00000 from CTS-Frequency Controls.