QT216S-37.400MAAE-T

Overview

The QT216S-37.400MAAE-T is a surface-mount crystal oscillator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a nominal frequency of 37.4 MHz with a frequency stability of ±30 ppm across the specified temperature range. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. It is housed in a compact SMD package measuring 2.0 x 1.6 x 0.5 mm, utilizing a four-pin configuration suitable for automated assembly processes.

Feature Summary

• Compact 2x1.6mm surface-mount footprint optimized for space-constrained PCB layouts
• High frequency stability of ±30 ppm ensuring reliable timing performance
• Standard 12pF load capacitance compatibility with common oscillator circuits

Applications

• Clock signal generation for microcontrollers and digital processors
• Timing references for communication interfaces such as UART and SPI
• Frequency standards for consumer electronics and IoT devices

Procurement Notes

Verify the specific suffix 'MAAE' against the manufacturer's current datasheet to confirm pinout and material specifications. Ensure the ordering part number matches the required frequency tolerance and operating temperature range. Cross-reference the package dimensions with the target PCB footprint to guarantee mechanical fit during assembly.

Selection Notes

Select this component when a 37.4 MHz reference is required in a minimal SMD form factor. Consider the ±30 ppm stability requirement against system timing budgets. Evaluate the 12pF load capacitance against the host circuit's design parameters to ensure proper oscillation startup and frequency accuracy without additional external components.

Part Context

This part belongs to the QT216S series of quartz crystals from QST, characterized by small physical dimensions and high reliability. The series supports various standard frequencies tailored for modern embedded systems. The 2016 package size represents a balance between electrical performance and board space efficiency, widely adopted in portable and industrial applications.

Replacement Considerations

Direct substitutes include other manufacturers offering 37.4 MHz crystals in the 2016 SMD package with identical 12pF load capacitance and ±30 ppm stability. Verify that alternative parts meet the same ESR specifications and thermal characteristics to maintain circuit performance.