QT161S-37.400MEEI-T

Overview

The QT161S-37.400MEEI-T is a surface-mount crystal oscillator manufactured by QST. It operates at a fundamental frequency of 37.4 MHz with a load capacitance of 8 pF. The component features a ±10 ppm frequency tolerance at 25°C and maintains ±10 ppm stability across the -20°C to +70°C temperature range. It utilizes a 4-SMD, No Lead package with dimensions of 1.6 x 1.2 mm.

Feature Summary

• Compact 1.6x1.2 mm surface-mount footprint for space-constrained designs
• High frequency stability of ±10 ppm over industrial temperature range
• Lead-free construction compliant with environmental standards

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics oscillators

Procurement Notes

Verify the complete part number suffix against official QST documentation to confirm specific tolerance and temperature range specifications. Ensure compatibility with reflow soldering profiles suitable for 4-SMD no-lead packages. Cross-reference manufacturer datasheets for storage conditions and handling sensitivity requirements prior to procurement.

Selection Notes

Select this component when precise frequency accuracy within ±10 ppm is required for 37.4 MHz applications. Consider the 8 pF load capacitance requirement for circuit design matching. Evaluate the 1.6x1.2 mm package size against available PCB real estate constraints and thermal management needs for the target operating environment.

Part Context

This crystal belongs to QST's QT161S series of miniature surface-mount resonators. The series offers various tolerance options denoted by suffix letters, with 'E' indicating ±10 ppm performance. These components are designed for high-volume manufacturing processes requiring consistent electrical characteristics and reliable long-term frequency stability.

Replacement Considerations

Direct substitutes must match the 37.4 MHz frequency, 8 pF load capacitance, and 4-SMD no-lead package dimensions. Verify equivalent ±10 ppm tolerance specifications across the same temperature range. Consult manufacturer cross-reference lists for approved alternatives with identical electrical parameters.