QT49-16.000MAHK-B

Overview

The QT49-16.000MAHK-B is a through-hole quartz crystal resonator manufactured by QST Products, LLC. It operates at a fundamental frequency of 16 MHz with a load capacitance of 20 pF and a frequency stability of ±30 ppm. The component utilizes an HC-49S package style, featuring dimensions of approximately 11.5 x 5 x 3.68 mm. It is designed for surface mount or through-hole integration depending on the specific variant configuration, though this model typically denotes a standard axial leaded format compatible with automated insertion processes.

Feature Summary

• Provides stable oscillation at 16 MHz with ±30 ppm accuracy
• Utilizes standard HC-49S mechanical housing for reliable mounting
• Compatible with 20 pF load capacitance circuits

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital logic circuit synchronization

Procurement Notes

Verify the exact package type and pin configuration against the manufacturer's datasheet before procurement. Ensure the load capacitance matches the oscillator circuit design requirements. Confirm that the frequency tolerance of ±30 ppm meets the system's timing precision needs. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a 16 MHz reference signal is required with moderate stability. Compare against variants with tighter tolerances if higher precision is necessary. Consider the physical size constraints of the PCB layout relative to the HC-49S footprint. Evaluate thermal performance if the operating environment exceeds standard commercial temperature ranges.

Part Context

This part belongs to the QT49 series of quartz crystals from QST Products, LLC. The series offers various frequencies and tolerance levels within the same mechanical form factor. It serves as a foundational timing element for electronic systems requiring precise clock generation without the complexity of active oscillators.

Replacement Considerations

Direct substitutes include other 16 MHz crystals with 20 pF load capacitance and similar mechanical dimensions. Verify equivalent electrical parameters such as motional resistance and stability before substitution. Cross-reference with other manufacturers offering HC-49S packaged crystals for availability.