QT216S-27.000MAAV-T

Overview

The QT216S-27.000MAAV-T is a surface-mount quartz crystal manufactured by QST, designed for precise frequency control in electronic circuits. It operates at a nominal frequency of 27 MHz with a frequency tolerance and stability of ±30 ppm at 25°C. The component features an equivalent series resistance (ESR) of 90 Ohms and requires a load capacitance of 8 pF. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00 mm x 1.60 mm. The device supports fundamental mode operation and is RoHS compliant, ensuring lead-free construction suitable for modern manufacturing processes.

Feature Summary

• Compact 2.0mm x 1.6mm surface-mount footprint for space-constrained designs
• High frequency stability of ±30 ppm ensures reliable timing performance
• Low equivalent series resistance of 90 Ohms for efficient circuit integration
• RoHS compliant lead-free construction for environmental safety

Applications

• Clock generation for microcontrollers and digital logic circuits
• Frequency reference for wireless communication modules operating at 27 MHz
• Timing sources for consumer electronics and portable devices
• Oscillator circuits requiring stable fundamental mode resonance

Procurement Notes

Verify the specific suffix 'AAV' against the manufacturer's official datasheet to confirm pin configuration and loading capacitance requirements. Ensure that the procurement source provides genuine QST components with traceable documentation. Check for RoHS compliance certificates if required by your assembly standards. Confirm that the 4-SMD no-lead package matches your PCB footprint design to avoid soldering issues during reflow processes.

Selection Notes

Select this component when a 27 MHz fundamental mode crystal is required with tight ±30 ppm stability. The 8 pF load capacitance specification must align with the oscillator circuit design to ensure accurate frequency output. Consider the 90 Ohm ESR value for impedance matching within the host circuit. The small 2.0x1.6 mm package is ideal for applications where board space is limited but high-frequency precision is necessary for system synchronization.

Part Context

This part belongs to the QT216S series of surface-mount crystals from QST, which are engineered for general-purpose timing applications. The series offers various frequency options within a standardized 2.0x1.6 mm package format. These crystals are designed for use in fundamental mode oscillators, providing a cost-effective solution for mass-produced electronics requiring reliable clock signals without the complexity of active oscillator modules.

Replacement Considerations

Direct replacements should be sought from the same QT216S series or compatible 2.0x1.6 mm SMD crystals with identical 27 MHz frequency, ±30 ppm tolerance, 8 pF load capacitance, and 90 Ohm ESR. Verify that substitute parts maintain the same 4-SMD no-lead package dimensions and RoHS compliance status to ensure mechanical and electrical compatibility.