QT161S-38.400MEEV-T

Overview

The QT161S-38.400MEEV-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a fundamental frequency of 38.4 MHz with a frequency stability and tolerance of ±10 ppm. The component features a load capacitance of 8 pF and utilizes a seam-seal package construction. Physical dimensions are 1.6 mm x 1.2 mm x 0.35 mm in a 4-SMD, no-lead configuration. The operating temperature range extends from -20°C to +70°C.

Feature Summary

• Seam-seal package construction for environmental protection
• Surface-mount design compatible with automated assembly processes
• Fundamental mode quartz resonator operation

Applications

• Clock signal generation for microcontrollers
• Timing reference for communication interfaces
• Frequency synthesis in consumer electronics

Procurement Notes

Verify the specific manufacturer designation on the datasheet, as some sources list TXC Corporation while others attribute it to QST. Confirm the exact frequency tolerance and load capacitance requirements match the target circuit design before ordering. Ensure the 4-SMD package footprint aligns with the PCB layout specifications.

Selection Notes

Select this component when a 38.4 MHz timing source is required within a compact 1.6x1.2 mm footprint. The ±10 ppm stability suits applications with moderate timing precision needs. Consider the -20°C to +70°C operating range for standard commercial environments. Verify compatibility with the system's load capacitance requirements.

Part Context

This part belongs to the QT161S series of surface-mount crystals. These components are designed for high-volume manufacturing applications requiring reliable frequency control. The series offers various frequency options within the same physical package size to simplify supply chain management for electronic designs.

Replacement Considerations

Direct substitutes must match the 38.4 MHz frequency, 8 pF load capacitance, and 4-SMD package dimensions. Verify that alternative manufacturers provide equivalent ±10 ppm stability and seam-seal construction. Cross-reference pinout configurations to ensure electrical compatibility.