QT252S-26.000MAAJ-T

Overview

The QT252S-26.000MAAJ-T is a quartz crystal resonator manufactured by TXC Corporation, marketed under the QST brand. It operates at a nominal frequency of 26 MHz and utilizes a surface-mount seam seal package with dimensions of 2.5 mm x 2.0 mm x 0.55 mm. The component features four pads for ceramic mounting and supports a load capacitance of 18 pF. Frequency tolerance is specified at ±30 ppm at 25°C, with stability maintained within ±30 ppm across an operating temperature range of -20°C to 70°C.

Feature Summary

• Seam seal construction for reliable surface-mount integration
• Quartz material ensures stable oscillation performance
• Four-pad design facilitates automated placement processes

Applications

• Microcontroller clock sources
• Communication module timing references
• Embedded system oscillator circuits

Procurement Notes

Verify manufacturer designation as TXC Corporation despite QST branding. Confirm package dimensions match 2.5x2.0mm requirement. Validate load capacitance specification of 18pF against circuit design. Ensure temperature range meets operational environment needs.

Selection Notes

Select this component when a 26 MHz reference is required in a compact SMD form factor. Consider the ±30 ppm stability limits for precision applications. Evaluate compatibility with existing PCB layout constraints regarding the 2.5x2.0mm footprint and four-terminal configuration.

Part Context

This part belongs to the QT252S series of quartz crystals. The series offers various frequencies and package sizes. This specific model provides a balance between size and performance for general-purpose timing applications requiring moderate stability.

Replacement Considerations

Direct substitutes include other 26 MHz crystals with identical 2.5x2.0mm seam seal packages and 18pF load capacitance. Verify equivalent frequency tolerance and temperature stability before substitution.