QT325S-13.560MEEJ-T

Overview

The QST QT325S-13.560MEEJ-T is a surface-mount crystal oscillator operating at a nominal frequency of 13.56 MHz. It features a ±10 ppm frequency tolerance and stability within the -20°C to +70°C temperature range. The component utilizes an 18 pF load capacitance and is housed in a compact 4-SMD, no-lead package with dimensions of 3.2 x 2.5 x 0.7 mm.

Feature Summary

• Compact 3.2x2.5mm SMD footprint for space-constrained designs
• High frequency stability of ±10 ppm across industrial temperature range
• Standard 18pF load capacitance compatibility

Applications

• RFID reader circuits
• Wireless communication modules
• Industrial control systems
• Smart metering devices

Procurement Notes

Verify the specific suffix MEEJ confirms the ±10 ppm stability over the -20°C to +70°C range. Ensure the 18pF load capacitance matches the target circuit design requirements before procurement.

Selection Notes

Select this component when a 13.56 MHz reference is required for RFID or ISM band applications. The MEEJ suffix indicates the necessary thermal stability for industrial environments compared to commercial grade alternatives.

Part Context

This part belongs to the QT325S series of thin-film crystals from QST. The series offers various frequency options and stability grades, with the MEEJ variant specifically engineered for moderate industrial temperature performance.

Replacement Considerations

Direct substitutes include other manufacturers' 13.56 MHz crystals in 3225 packages with identical 18pF load capacitance and ±10 ppm stability. Verify equivalent ESR values and drive level specifications.