QT49S-36.000MAAE-T

Overview

The QT49S-36.000MAAE-T is a quartz crystal resonator manufactured by QST, designed for precise frequency control in electronic circuits. It operates at a nominal frequency of 36 MHz with a frequency tolerance and stability of ±30 ppm at 25°C. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 80 Ohms. It utilizes the HC-49/US package style, suitable for through-hole mounting applications requiring reliable oscillation.

Feature Summary

• Provides stable 36 MHz oscillation with ±30 ppm frequency tolerance
• Designed for standard HC-49/US mechanical footprint compatibility
• Optimized for 12 pF load capacitance environments
• Maintains performance within specified ESR limits

Applications

• Microcontroller clock generation
• Communication module timing references
• Digital signal processing circuit synchronization
• General-purpose oscillator circuits

Procurement Notes

Verify the specific suffix AAE against official QST documentation to confirm the exact tolerance class and packaging configuration. Ensure the receiving inventory matches the HC-49/US form factor and 12 pF load capacitance requirements. Cross-reference the 80 Ohm ESR specification with circuit design constraints before finalizing procurement orders.

Selection Notes

Select this component when a 36 MHz reference is required with ±30 ppm accuracy. Confirm that the target circuit supports a 12 pF load capacitance to ensure frequency accuracy. Verify that the PCB layout accommodates the HC-49/US package dimensions and that the operating temperature range meets application demands.

Part Context

This part belongs to the QT49S series of quartz crystals from QST Products, LLC. The series offers various frequencies and tolerance options within the HC-49/US package. The AAE suffix specifically denotes the ±30 ppm tolerance level at 25°C, distinguishing it from other variants like AAB or AAC which may have different stability ratings.

Replacement Considerations

Direct substitutes must match the 36 MHz frequency, 12 pF load capacitance, and HC-49/US package. Verify equivalent ESR values around 80 Ohms to prevent startup issues. Check if alternative manufacturers offer compatible parts with identical ±30 ppm tolerance specifications.