QT161S-24.000MAAQ-T

Overview

The QT161S-24.000MAAQ-T is a surface-mount quartz crystal oscillator manufactured by QST, designed for precise timing applications in compact electronic circuits. It operates at a nominal frequency of 24 MHz with a standard load capacitance of 10 pF. The component exhibits a frequency tolerance of ±30 ppm at 25°C and maintains stability within ±30 ppm across the commercial temperature range of -20°C to +70°C. Housed in a small 4-SMD, no-lead package measuring 1.6 x 1.2 mm, it offers a seated height maximum of 0.40 mm, facilitating integration into space-constrained designs requiring reliable clock signals.

Feature Summary

• Seam-sealed construction ensures long-term frequency stability and environmental robustness
• Compact SMD footprint enables high-density PCB layout and automated assembly
• Optimized for low power consumption in portable and battery-operated devices

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics internal clocks

Procurement Notes

Verify that the ordering suffix matches the required load capacitance and tolerance specifications. Confirm the manufacturer source is authorized to ensure genuine components. Check datasheet revisions for any updates to mechanical dimensions or recommended soldering profiles. Ensure storage conditions comply with moisture sensitivity levels prior to reflow.

Selection Notes

Select this component when a 24 MHz reference is required in a minimal footprint. Compare load capacitance requirements against the target circuit design to ensure proper oscillation. Evaluate thermal stability needs against the specified -20°C to +70°C range. Consider ESR values if driving capability is limited by the host oscillator circuit.

Part Context

This part belongs to the QT161S series of seam-sealed crystals from QST. The series provides various frequencies and package options for general-purpose timing needs. The 1.6x1.2 mm size is common for modern consumer electronics. Similar parts in the family may differ in frequency, tolerance, or load capacitance.

Replacement Considerations

Direct substitutes include other manufacturers' 24 MHz crystals in 1612 packages with identical electrical parameters. Verify pin compatibility and mechanical dimensions before substitution. Cross-reference load capacitance and stability ratings to maintain system performance.