QT252S-26.000MEEQ-T

Overview

The QT252S-26.000MEEQ-T is a surface-mount quartz crystal oscillator manufactured by TXC Corporation under the QST brand. It operates at a fundamental frequency of 26 MHz with a load capacitance of 10 pF. The component features a 4-SMD, no lead package with dimensions of 2.5 x 2.0 x 0.55 mm. Frequency stability is rated at ±10 ppm at 25°C and ±10 ppm over the -20°C to +70°C temperature range. The unit has an equivalent series resistance (ESR) of 100 Ohms and utilizes seam seal technology for reliability.

Feature Summary

• Seam seal construction for enhanced environmental protection
• Surface mount design compatible with automated assembly
• High frequency stability across specified operating temperatures

Applications

• Precision timing circuits in communication systems
• Clock generation for microprocessors and digital logic
• Frequency reference sources in consumer electronics

Procurement Notes

Verify manufacturer designation as TXC Corporation despite QST branding. Confirm package dimensions and pin configuration match target PCB footprint. Ensure load capacitance requirements align with circuit design specifications. Check RoHS compliance status for regulatory adherence. Validate frequency tolerance against system timing constraints before integration.

Selection Notes

Select this component when a 26 MHz reference with ±10 ppm stability is required in a compact 2.5x2.0 mm package. Consider the 100 Ohm ESR value for oscillator circuit compatibility. Evaluate the -20°C to +70°C operating range against environmental conditions. Compare load capacitance requirements with existing circuit designs to ensure proper frequency accuracy.