QT252S-26.000MEIV-T

Overview

The QT252S-26.000MEIV-T is a surface-mount quartz crystal manufactured by QST, designed for precision timing applications. It operates at a nominal frequency of 26 MHz and utilizes a 2.50mm x 2.00mm SMD package with four pads. The component features a load capacitance of 12 pF and offers high frequency stability, specified as ±10 ppm at 25°C and ±20 ppm across the industrial temperature range of -40°C to +85°C. This hermetically sealed device ensures reliable performance in demanding electronic circuits requiring accurate clock signals.

Feature Summary

• Hermetically sealed construction for environmental protection
• High frequency stability within specified temperature ranges
• Compact surface-mount design for automated assembly

Applications

• Precision timing circuits
• Clock signal generation
• Communication equipment

Procurement Notes

Verify the specific manufacturer designation, as the model prefix may indicate QST Products LLC or TXC Corporation variants. Confirm the exact load capacitance and tolerance specifications against the official datasheet before integration. Ensure the package dimensions match the target PCB footprint requirements. Check for RoHS compliance status relevant to the production region. Validate the operating temperature range against the application environment constraints.

Selection Notes

Select this component when a 26 MHz reference signal is required with tight frequency tolerance. The 12 pF load capacitance must match the oscillator circuit design parameters. Consider the 2.5x2.0 mm package size for space-constrained layouts. Evaluate the ±10 ppm initial accuracy requirement against system jitter budgets. Ensure the industrial temperature rating meets the operational conditions.

Part Context

This part belongs to the QT252S series of surface-mount crystals. The series typically includes various frequencies and package sizes. These components are widely used in consumer electronics and industrial systems. The specific model denotes a 26 MHz variant with defined stability metrics. The series emphasizes reliability through sealed packaging technologies.

Replacement Considerations

Compatible substitutes include other 26 MHz crystals in 2520 packages with similar electrical characteristics. Verify equivalent load capacitance and stability ratings. Check for identical package dimensions and pin configurations. Ensure the replacement maintains the same hermetic sealing standards. Cross-reference manufacturer-specific tolerances for critical timing applications.