QT49S-8.000MAGK-T

Overview

The QT49S-8.000MAGK-T is a surface-mount quartz crystal unit manufactured by QST Products, LLC. It operates at a fundamental frequency of 8 MHz with a load capacitance of 20 pF and an equivalent series resistance of 80 Ohms. The component exhibits a frequency stability of ±50 ppm and a frequency tolerance of ±30 ppm. Designed for compact electronics, it utilizes the HC-49US package form factor adapted for surface mount technology.

Feature Summary

• Surface mount construction for automated assembly
• HC-49US compatible physical footprint
• RoHS compliant manufacturing

Applications

• Microcontroller clock sources
• Communication module timing
• Consumer electronic circuits

Procurement Notes

Verify the specific suffix MAGK against official QST documentation to confirm the exact tolerance and stability ratings. Ensure the ordering part number matches the required load capacitance and frequency stability specifications for the target application circuit design.

Selection Notes

Select this component when a surface mount solution is required for 8 MHz timing applications. Confirm that the PCB layout supports the specific dimensions of the HC-49US SMD variant. Validate that the circuit load capacitance aligns with the specified 20 pF requirement for accurate frequency operation.

Part Context

This part belongs to the QT49S series of quartz crystals from QST. The series offers various frequency options and package configurations. The MAGK suffix denotes specific electrical parameters including tolerance and stability levels distinct from other suffixes in the same product family.

Replacement Considerations

Direct substitutes must match the 8 MHz frequency, 20 pF load capacitance, and HC-49US SMD package. Verify equivalent ESR and stability ratings before substitution.