QT325G-24.576MAHV-T

Overview

The QT325G-24.576MAHV-T is a surface-mount crystal oscillator manufactured by QST, designed for precision timing applications. It operates at a nominal frequency of 24.576 MHz with a frequency tolerance and stability of ±30 ppm within the commercial temperature range of -20°C to +70°C. The component features an equivalent series resistance (ESR) of 60 Ohms and requires a load capacitance of 8 pF for optimal performance. It is housed in a compact 4-SMD, No Lead package with dimensions of 3.2 x 2.5 x 0.8 mm, suitable for automated assembly processes.

Feature Summary

• Compact 4-SMD no-lead surface mount package design
• Stable frequency output with ±30 ppm tolerance
• Optimized for low power consumption applications

Applications

• Consumer electronics timing circuits
• Communication device clock sources
• Microcontroller system oscillators

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm the exact temperature range and stability specifications. Ensure compatibility with the target circuit's load capacitance requirements before procurement. Cross-reference the part number with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when a 24.576 MHz reference signal is required in space-constrained designs. Consider the ±30 ppm stability limit for environmental variations between -20°C and +70°C. Evaluate the 60 Ohm ESR against the oscillator circuit's drive level constraints to prevent over-driving the crystal.

Part Context

This part belongs to the QT325G series of thin-film bulk acoustic resonator (FBAR) or similar advanced crystal technologies from QST. The series offers improved size and performance characteristics compared to traditional AT-cut crystals. The model indicates specific frequency, tolerance, and packaging attributes defined by the manufacturer's coding system.

Replacement Considerations

Direct substitutes include other 24.576 MHz crystals with identical 3.2x2.5mm SMD footprints and 8pF load capacitance. Verify that alternative parts meet the same ±30 ppm stability requirement and 60 Ohm ESR specification to ensure circuit compatibility without redesign.