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Product Detailed Parameters
- Description：5.0X3.2 GLASS SEAL MHZ QUARTZ XT
- Series：QT532G
- Mfr：QST
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MHz Crystal
- Frequency：27.172 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±30ppm
- Load Capacitance：12pF
- ESR (Equivalent Series Resistance)：50 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：2-SMD, No Lead
- Size / Dimension：0.197" L x 0.126" W (5.00mm x 3.20mm)
- Height - Seated (Max)：0.053" (1.35mm)
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Overview
The QT532G-27.172MAHE-T is a surface-mount crystal oscillator from the QT532G series manufactured by QST. It operates at a nominal frequency of 27.172 MHz with a fundamental mode configuration. The component features a tolerance and stability of ±30 ppm, ensuring precise timing performance across its operational range. It utilizes a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. The device is housed in a compact 2-SMD, No Lead package suitable for automated assembly processes.
Feature Summary
- Fundamental mode quartz crystal operation
- Compact 2-SMD no-lead surface mount packaging
- High frequency stability within specified temperature range
Applications
- Clock generation for microprocessors
- Timing reference for communication modules
- Oscillator circuits in consumer electronics
Procurement Notes
Verify the specific suffix MAHE-T against the manufacturer's current datasheet to confirm package dimensions and soldering recommendations. Ensure the operating temperature range of -40°C to +85°C aligns with your system requirements. Cross-reference the load capacitance value with your circuit design to maintain frequency accuracy.
Selection Notes
Select this component when a 27.172 MHz fundamental frequency is required with tight stability constraints. The 50 Ohm ESR specification must match the oscillator circuit design. Consider the 2-SMD form factor for space-constrained PCB layouts requiring reflow solder compatibility.
Part Context
This part belongs to the QT532G series of surface-mount crystals. The series offers various frequencies while maintaining consistent electrical characteristics such as load capacitance and ESR. The QT532G designation indicates a specific footprint and mounting style common in modern electronic assemblies.
Replacement Considerations
Direct substitutes include other QT532G series parts with identical frequency specifications, such as QT532G-27.120MAHE-T or QT532G-25.000MAHE-T, provided the frequency difference is acceptable for the application.
