QT252S-26.000MAHV-T

Overview

The QT252S-26.000MAHV-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a fundamental frequency of 26.000 MHz with a load capacitance of 10 pF. The component utilizes a four-terminal SMD package without leads, measuring 2.5 mm in length, 2.0 mm in width, and 0.55 mm in height. Frequency stability is rated at ±30 ppm across the operating temperature range of -40°C to +85°C. The unit features a series resistance of 100 ohms and supports reflow soldering processes for automated assembly.

Feature Summary

• Seam seal construction ensures long-term frequency stability and reliability
• RoHS compliant lead-free design suitable for modern environmental standards
• Compact surface-mount footprint enables high-density PCB layouts
• Wide industrial temperature range operation for diverse environments

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics timing circuits
• Industrial control system oscillators

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm exact tolerance and temperature range specifications. Ensure compatibility with standard reflow soldering profiles during integration. Confirm RoHS compliance status through current manufacturer declarations prior to procurement.

Selection Notes

Select this component when a 26 MHz reference is required with ±30 ppm stability over an extended temperature range. The 10 pF load capacitance must match the host circuit design requirements. Consider the small form factor for space-constrained applications requiring reliable surface-mount timing solutions.

Part Context

This part belongs to the QT252S series of seam-seal quartz crystals from QST. The series offers various frequency options within a standardized 2.5x2.0 mm package. Different suffixes indicate variations in tolerance, temperature range, and packaging configurations while maintaining consistent electrical characteristics.

Replacement Considerations

Compatible substitutes include other 26 MHz crystals with identical 10 pF load capacitance and ±30 ppm stability. Verify that alternative parts support the same 2.5x2.0 mm footprint and 0.55 mm height constraints. Ensure equivalent series resistance and operating temperature ranges are met.