QT252S-25.000MAHJ-T

Overview

The QT252S-25.000MAHJ-T is a surface-mount quartz crystal oscillator manufactured by TXC Corporation, available through QST distribution channels. It operates at a fundamental frequency of 25 MHz with a load capacitance of 18 pF and an equivalent series resistance (ESR) of 100 Ohms. 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 ±30 ppm at 25°C and ±30 ppm over the operating temperature range of -20°C to +70°C.

Feature Summary

• Seam seal construction for environmental protection
• Surface mount design compatible with automated assembly
• Low profile package suitable for space-constrained applications

Applications

• Microcontroller clock sources
• Communication module timing circuits
• Consumer electronics control boards

Procurement Notes

Verify manufacturer origin as TXC Corporation when sourcing through QST. Confirm package dimensions and electrical parameters against official datasheets prior to integration. Ensure compliance with RoHS standards if required by project specifications.

Selection Notes

Select this component for applications requiring precise 25 MHz timing in compact designs. Consider the ±30 ppm stability rating against system requirements. Evaluate the 4-SMD footprint compatibility with PCB layout constraints.

Part Context

This part belongs to the QT252S series of seam-seal quartz crystals. The series offers various frequencies and stability options within a standardized small outline package format designed for high-volume surface mount production.

Replacement Considerations

Cross-reference with other 25 MHz SMD crystals having identical 2.5x2.0mm footprints and 18pF load capacitance. Verify ESR and stability ratings match original design requirements before substitution.