QT161S-37.400METI-T

Overview

The QT161S-37.400METI-T is a surface-mount quartz crystal resonator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a nominal frequency of 37.4 MHz with a load capacitance of 8 pF and a maximum equivalent series resistance of 80 Ohms. The component features a ±10 ppm frequency stability over an extended operating temperature range of -30°C to +85°C, ensuring reliable performance in demanding environments. It is housed in a compact 4-SMD, No Lead package with dimensions of 1.6 x 1.2 mm, facilitating automated assembly and space-constrained designs.

Feature Summary

• High frequency stability of ±10 ppm across the full industrial temperature range
• Compact 4-SMD no-lead surface mount package for efficient PCB layout
• RoHS compliant and lead-free construction for environmental safety

Applications

• Clock signal generation for microprocessors and microcontrollers
• Frequency reference for communication modules and RF circuits
• Timing sources for portable consumer electronics devices

Procurement Notes

Verify the specific suffix METI against official QST documentation to confirm the -30°C to +85°C temperature range and ±10 ppm stability. Ensure the ordering part number matches the required load capacitance and package type. Request manufacturer certificates of conformity to validate RoHS compliance and material composition prior to final procurement approval.

Selection Notes

Select this component when a stable 37.4 MHz reference is required in harsh thermal conditions. The wide temperature range supports applications exceeding standard commercial limits. Compare ESR and load capacitance requirements with the target circuit design to ensure optimal oscillator performance and startup reliability.

Part Context

This part belongs to the QT161S series of ultra-small quartz crystals from QST. The series offers various frequency options and stability grades within a standardized footprint. The METI suffix specifically denotes the extended temperature capability and tight tolerance, distinguishing it from standard commercial grade variants in the same physical package.

Replacement Considerations

Direct substitutes must match the 37.4 MHz frequency, 8 pF load capacitance, and 4-SMD no-lead package. Verify that alternative manufacturers offer equivalent ±10 ppm stability over the -30°C to +85°C range to maintain system timing integrity without redesigning the oscillator circuit.