QT252S-30.000MEEQ-T

Overview

The QT252S-30.000MEEQ-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a fundamental frequency of 30 MHz with a frequency tolerance of ±10 ppm at 25°C and ±10 ppm over the operating temperature range. The component features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 60 Ohms. It utilizes a 4-SMD, no lead package with dimensions of 2.5 x 2.0 mm. The device is designed for applications requiring precise timing signals within a specified thermal environment.

Feature Summary

• Seam-sealed MHZ quartz construction for stable oscillation
• Surface mount design compatible with automated assembly processes
• Defined load capacitance and ESR characteristics for circuit integration

Applications

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

Procurement Notes

Verify the specific suffix MEEQ against official QST documentation to confirm the exact load capacitance and temperature range specifications. Ensure the ordering quantity aligns with standard tape and reel packaging requirements. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before finalizing procurement orders.

Selection Notes

Select this component when a 30 MHz reference with ±10 ppm stability is required in a compact 2.5x2.0 mm footprint. Consider the 10 pF load capacitance requirement for oscillator circuit design. Evaluate the -20°C to 70°C operating range against the target application's environmental conditions to ensure reliable performance throughout the operational lifecycle.

Part Context

This part belongs to the QT252S series of surface-mount crystals from QST. The series offers various frequency options within a standardized small outline package. The QT252S designation indicates a specific mechanical form factor and sealing technology suitable for high-volume consumer and industrial electronics manufacturing.

Replacement Considerations

Direct substitutes include other manufacturers' 30 MHz crystals in 2.5x2.0 mm packages with matching 10 pF load capacitance and similar ESR values. Verify pin compatibility and electrical parameters before substitution.