QT532S-30.000MBBJ-T

Overview

The QT532S-30.000MBBJ-T is a 30 MHz quartz crystal manufactured by QST, designed for surface-mount applications. It features a frequency stability and tolerance of ±50ppm at 25°C. The component operates in fundamental mode with a load capacitance of 18pF and an equivalent series resistance (ESR) of 40 Ohms. It utilizes a 4-SMD, No Lead package with dimensions of 5.00mm x 3.20mm and a maximum seated height of 0.9mm. The device supports a wide operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

Feature Summary

• Surface-mount quartz crystal with 4-SMD no-lead package
• Fundamental oscillation mode operation
• Wide industrial temperature range support
• RoHS3 compliant construction

Applications

• General-purpose clock signal generation
• Microcontroller system timing references
• Communication module frequency control
• Consumer electronics timing circuits

Procurement Notes

Verify the specific suffix BBJ-T against official QST documentation to confirm the exact electrical parameters, particularly the ±50ppm stability and 40 Ohm ESR values. Ensure the selected variant matches the required load capacitance of 18pF for the target circuit design. Cross-reference the package dimensions to confirm compatibility with the intended PCB footprint and reflow soldering profile.

Selection Notes

Select this component when a 30 MHz fundamental frequency is required with moderate stability specifications. The 40 Ohm ESR and 18pF load capacitance must align with the oscillator circuit's drive level and impedance requirements. Consider the 4-SMD package size for space-constrained designs where standard leaded crystals are unsuitable. Verify that the ±50ppm tolerance meets the system's frequency accuracy needs across the specified temperature range.

Part Context

This part belongs to the QT532S series of surface-mount crystals from QST. The series offers various frequencies and package options for embedded timing applications. The QT532S designation indicates a specific form factor optimized for automated assembly processes. This model represents a standard frequency option within the product line, balancing performance and manufacturability for mass-produced electronic devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.