QT325G-25.000MAKV-T

Overview

The QT325G-25.000MAKV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 25 MHz with a load capacitance of 18 pF and an equivalent series resistance of 60 Ohms. The component utilizes a 4-SMD, No Lead package with physical dimensions of 3.2 x 2.5 mm. Frequency stability is specified as ±30 ppm at 25°C and ±60 ppm over the temperature range of -40°C to +85°C, ensuring reliable performance in precision timing circuits.

Feature Summary

• Provides stable 25 MHz oscillation with high frequency accuracy
• Compact surface-mount design suitable for space-constrained PCB layouts
• Maintains frequency stability across standard industrial temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix KV-T against official QST documentation to confirm load capacitance and temperature stability ratings. Ensure compatibility with existing oscillator circuit designs regarding load capacitance requirements. Request updated datasheets to validate current manufacturing specifications before finalizing procurement orders.

Selection Notes

Select this component when a 25 MHz reference with ±30 ppm initial accuracy is required. Consider the 18 pF load capacitance requirement for oscillator matching. Evaluate the 4-SMD package size against available board real estate. Confirm that the operating temperature range meets the environmental conditions of the target application.

Part Context

This part belongs to the QT325G series of thin-film or bulk acoustic wave crystals from QST. The series offers various frequency and stability options within a standardized small outline footprint. The KV-T suffix denotes specific electrical characteristics including load capacitance and tolerance levels defined by the manufacturer.

Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pinout compatibility and electrical parameters such as ESR and load capacitance. Re-test oscillator performance with any potential substitute components.