QT161S-38.400MEIB-T

Overview

The QT161S-38.400MEIB-T is a surface-mount MHz crystal manufactured by QST. It operates at a nominal frequency of 38.4 MHz with a load capacitance of 8 pF. The component utilizes a 4-SMD, No Lead package configuration. Frequency stability is specified at ±20 ppm over the temperature range of -20°C to +70°C, as indicated by the 'I' suffix in the part number. This device is designed for precise timing applications requiring stable oscillation within standard industrial temperature limits.

Feature Summary

• Provides stable oscillation at 38.4 MHz for digital timing circuits
• Utilizes a compact 4-SMD no-lead surface mount package for automated assembly
• Maintains frequency accuracy within ±20 ppm across the -20°C to +70°C operating range

Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Procurement Notes

Verify the specific suffix code against official QST documentation to confirm the exact temperature stability rating and load capacitance requirements. Ensure the ordering information matches the required frequency tolerance and package dimensions for the target PCB layout. Cross-reference the manufacturer's latest datasheet to validate active status and compliance certifications before finalizing procurement orders.

Selection Notes

Select this component when a 38.4 MHz reference is required for surface-mount designs. The ±20 ppm stability suits general-purpose digital logic and communication interfaces. Consider the 8 pF load capacitance compatibility with the host oscillator circuit. Evaluate thermal performance needs against the -20°C to +70°C specification range for environmental suitability.

Part Context

This part belongs to the QT161S series of surface-mount crystals from QST. The series offers various frequency options and stability grades defined by alphanumeric suffixes. The QT161S form factor provides a standardized footprint for timing solutions in consumer and industrial electronics, supporting mass production through reliable surface-mount technology integration.

Replacement Considerations

Direct substitutes must match the 38.4 MHz frequency, 4-SMD no-lead package, and ±20 ppm stability at -20°C to +70°C. Verify equivalent load capacitance and drive level specifications to ensure circuit compatibility without modification.