QT325S-50.000MEIC-T

Overview

The QT325S-50.000MEIC-T is a surface-mount quartz crystal manufactured by QST, designed for precise timing applications. It operates at a fundamental frequency of 50 MHz and utilizes a 3.2mm x 2.5mm x 0.7mm SMD package. The component features a load capacitance of 12 pF and offers high frequency stability with an initial tolerance of ±10 ppm at +25°C. It maintains a stability of ±20 ppm across the extended industrial temperature range of -40°C to +85°C. This device is suitable for compact electronic designs requiring reliable clock signals.

Feature Summary

• Compact surface-mount design for space-constrained PCB layouts
• High frequency stability across wide industrial temperature ranges
• Integrated load capacitance specification for simplified circuit integration

Applications

• Embedded system clock generation
• Wireless communication modules
• Microcontroller oscillator circuits

Procurement Notes

Verify that the specific suffix 'MEIC' matches the required stability and temperature specifications for your application. Confirm the load capacitance aligns with the host oscillator circuit requirements. Ensure the surface-mount footprint dimensions are compatible with your PCB design constraints before finalizing procurement.

Selection Notes

Select this component when a 50 MHz frequency is required in a small SMD package. Choose based on the need for ±10 ppm initial tolerance and ±20 ppm stability over -40°C to +85°C. Consider the 12 pF load capacitance requirement for proper oscillator matching.

Part Context

This part belongs to the QT325S series from QST, which specializes in timing devices including crystals and oscillators. The series provides various frequency options within the same 3.2x2.5mm form factor, allowing designers to standardize footprints while adjusting frequencies and stabilities as needed for different product lines.

Replacement Considerations

Direct substitutes must match the 50 MHz frequency, 3.2x2.5mm package, and similar stability ratings (±10 ppm/-20 ppm). Verify equivalent load capacitance and operating temperature range compatibility.