QT325S-50.000MEDI-T

Overview

The QST QT325S-50.000MEDI-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 50 MHz. It features an 8 pF load capacitance and a maximum series resistance of 50 Ohms. The component utilizes a 4-SMD, No Lead package with dimensions of 3.2 x 2.5 x 0.7 mm. Frequency tolerance at 25°C is ±10 ppm, while frequency stability over the temperature range of -20°C to +70°C is also ±10 ppm.

Feature Summary

• Provides precise timing signals for digital circuits
• Offers stable frequency performance across specified temperature ranges
• Designed for compact surface-mount assembly processes

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronic device oscillators

Procurement Notes

Verify the complete part number against official QST documentation to ensure correct tolerance and load capacitance specifications. Confirm that the ordering suffix matches the required frequency stability and temperature range for your specific application design requirements.

Selection Notes

Select this component when a 50 MHz reference with tight ±10 ppm stability is required within a -20°C to +70°C operational window. Ensure the circuit design accommodates the 8 pF load capacitance and 50 Ohm maximum series resistance parameters for proper oscillator startup and operation.

Part Context

This model belongs to the QT325S family of SMD crystals from QST. The family offers various frequency tolerances and temperature stabilities defined by alphanumeric suffixes. This specific variant provides high stability suitable for applications requiring consistent timing accuracy under standard commercial operating conditions.

Replacement Considerations

Compatible substitutes include other 50 MHz SMD crystals with identical 8 pF load capacitance and similar ±10 ppm stability ratings. Verify physical footprint compatibility (3.2x2.5mm) and electrical parameters before substitution.