QT216S-37.400MAAV-T

Overview

The QT216S-37.400MAAV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 37.4 MHz with a frequency tolerance of ±30 ppm at 25°C and ±30 ppm over the temperature range of -20°C to +70°C. The component features an 8 pF load capacitance and a maximum equivalent series resistance (ESR) of 50 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. The device is RoHS compliant and lead-free, suitable for high-reliability electronic circuits requiring stable clock signals.

Feature Summary

• Fundamental mode operation ensures precise frequency stability for timing applications.
• Compact 4-SMD no-lead package facilitates automated surface-mount assembly.
• Wide operating temperature range supports functionality in varied environmental conditions.

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics internal clocks

Procurement Notes

Verify the complete part number including suffixes such as 'MAAV-T' to ensure correct packaging and tolerance specifications. Confirm RoHS compliance status if required by project regulations. Cross-reference the manufacturer's latest datasheet for handling and soldering guidelines specific to the 4-SMD no-lead form factor to prevent damage during assembly.

Selection Notes

Select this component when a 37.4 MHz fundamental frequency is required with ±30 ppm stability across industrial temperatures. Ensure the circuit design accommodates an 8 pF load capacitance and that the driving level remains within limits to keep ESR below 50 Ohms. Verify that the 2.0x1.6 mm footprint fits the PCB layout constraints compared to larger crystal packages.

Part Context

This part belongs to QST's QT216S series of miniature quartz crystals. The series offers various frequencies and package options, with the QT216S specifically designed for space-constrained surface-mount designs. The 'MAAV-T' suffix typically denotes specific tolerance, loading, and tape-and-reel packaging characteristics within this product line.

Replacement Considerations

Direct substitutes include other 37.4 MHz crystals with identical 4-SMD 2.0x1.6mm footprints, 8pF load capacitance, and ≤50 Ohm ESR. Equivalent parts from other manufacturers must match the ±30 ppm tolerance at both 25°C and the -20°C to +70°C range. Verify drive level sensitivity and shunt capacitance compatibility before substitution.