QT325S-26.000MEEQ-T

Overview

The QT325S-26.000MEEQ-T is a quartz crystal resonator manufactured by QST, operating at a fundamental frequency of 26 MHz. It features a load capacitance of 10 pF and a frequency stability of ±10 ppm within the -20°C to +70°C temperature range. The component utilizes a glass-sealed package with dimensions of 3.2 mm x 2.5 mm x 0.7 mm. Key electrical specifications include an equivalent series resistance (ESR) of 50 Ohms and a drive level of 10 uW. It employs surface-mount device (SMD) termination for automated assembly.

Feature Summary

• Glass-sealed construction ensures environmental protection and long-term reliability
• Compact 3.2mm x 2.5mm footprint suitable for space-constrained designs
• High frequency stability of ±10 ppm across specified industrial temperature ranges

Applications

• Wireless communication modules requiring stable clock signals
• Microcontroller system oscillators
• Consumer electronics timing circuits

Procurement Notes

Verify the manufacturer designation on the component marking or datasheet, as similar part numbers exist from TXC Corporation. Confirm the specific ESR value and tolerance code against the official QST datasheet to ensure compatibility with the target oscillator circuit design requirements.

Selection Notes

Select this component when a 26 MHz reference is required in a small SMD package. Ensure the application circuit supports the 10 pF load capacitance and 50 Ohm ESR. Verify that the operating environment stays within the -20°C to +70°C range for guaranteed ±10 ppm stability.

Part Context

This part belongs to the QT325S series of glass-sealed quartz crystals. The series offers various frequency options and stability grades. The 'E' suffix typically denotes ±10 ppm stability over the -20°C to +70°C range, while other suffixes indicate different thermal performance characteristics.

Replacement Considerations

QT325S-26.000MDDK-T offers similar form factor but may differ in stability specifications. Cross-reference with TXC 7V-26.000MEEQ-T for potential mechanical compatibility, though electrical parameters must be verified against the specific QST datasheet.