QT216S-38.400MAAV-T

Overview

The QT216S-38.400MAAV-T is a quartz crystal resonator manufactured by QST, operating at a nominal frequency of 38.4 MHz. It features a frequency stability and tolerance of ±30ppm at 25°C, with identical stability maintained across the operating temperature range of -20°C to +70°C. The component utilizes an 8pF load capacitance and has a maximum equivalent series resistance (ESR) of 50 Ohms. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm x 0.5mm.

Feature Summary

• Provides stable oscillation at 38.4 MHz with ±30ppm frequency tolerance across industrial temperature ranges.
• Designed for surface-mount integration using a compact 4-terminal no-lead SMD footprint.
• Operates with an 8pF load capacitance and maintains low ESR for efficient circuit performance.

Applications

• Microcontroller clock source generation
• Communication module timing references
• Embedded system oscillator circuits

Procurement Notes

Verify the complete part number including suffixes such as 'T' for tape-and-reel packaging against official QST documentation. Confirm that the specific load capacitance and frequency stability requirements match the design specifications before procurement. Ensure compatibility with reflow soldering profiles suitable for 4-SMD no-lead packages.

Selection Notes

Select this component when a precise 38.4 MHz reference is required with tight frequency stability constraints. Consider the 8pF load capacitance requirement for oscillator circuit design. Evaluate the 50 Ohm ESR limit against the driving level capabilities of the host microcontroller or oscillator IC to prevent overdriving.

Part Context

This part belongs to the QT216S series of quartz crystals from QST, designed for general-purpose timing applications. The series offers various frequency options within a standardized small outline package format, facilitating consistent board layout strategies across different product lines requiring similar form factors.

Replacement Considerations

Direct substitutes must match the 38.4 MHz frequency, 8pF load capacitance, and ±30ppm stability. Verify pinout compatibility for the 4-SMD no-lead configuration. Cross-reference with other manufacturers offering equivalent SMD crystal specifications if QST supply is unavailable.