QT252S-20.000MAHV-T

Overview

The QT252S-20.000MAHV-T is a surface-mount quartz crystal oscillator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a fundamental frequency of 20 MHz with a load capacitance of 8 pF. The component exhibits a frequency stability of ±30 ppm and a tolerance of ±30 ppm across the operating temperature range of -40°C to +85°C. It features a 4-SMD, no-lead package with dimensions of 2.50mm x 2.00mm and a maximum seated height of 0.55mm.

Feature Summary

• Seam seal construction for enhanced environmental protection
• Surface mount design compatible with automated assembly processes
• Fundamental mode operation ensuring stable frequency output

Applications

• Clock signal generation for microprocessors
• Timing reference for communication interfaces
• Frequency control in consumer electronics

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm load capacitance and stability parameters. Ensure compatibility with reflow soldering profiles specified in the datasheet. Confirm RoHS compliance status through manufacturer declarations prior to integration into final products.

Selection Notes

Select this component when a 20 MHz fundamental frequency is required with tight stability constraints. Consider the 8 pF load capacitance requirement for circuit matching. Evaluate the 4-SMD package size against available PCB real estate and thermal management needs.

Part Context

This part belongs to the QT252S series of seam seal crystals from QST. The series offers various frequencies and package options for standard SMD applications. The QT252S-20.000MAHV-T represents a specific configuration within this family optimized for 20 MHz operations.

Replacement Considerations

Cross-reference tools indicate parametrically similar parts such as the QT252S-20.000MAAV-T. Verify pinout compatibility and electrical specifications before substitution.