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Product Detailed Parameters
- Description：3.2X2.5 GLASS SEAL MHZ QUARTZ XT
- Series：QT325G
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：12.288 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±30ppm
- Load Capacitance：10pF
- ESR (Equivalent Series Resistance)：100 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height - Seated (Max)：0.035" (0.90mm)
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Overview
The QT325G-12.288MAHQ-T is a surface-mount crystal resonator manufactured by QST, designed for precise timing applications. It operates at a nominal frequency of 12.288 MHz with a load capacitance of 10 pF and an equivalent series resistance of 100 Ohms. The component features a compact 4-SMD, No Lead package with body dimensions of 3.2 x 2.5 x 0.8 mm. It offers a frequency tolerance and stability of ±30 ppm, ensuring reliable performance across standard operating conditions.
Feature Summary
- Compact 4-SMD no-lead package design suitable for automated assembly
- High frequency stability of ±30 ppm for accurate clock generation
- Optimized load capacitance of 10 pF for standard oscillator circuits
Applications
- Automotive body electronics and lighting systems
- Industrial control equipment timing references
- Medical device signal processing clocks
- Personal electronics and consumer hardware
Procurement Notes
Verify the specific suffix codes against official QST documentation to confirm exact electrical parameters and packaging specifications. Ensure compatibility with target oscillator circuit requirements regarding load capacitance and drive level before finalizing procurement orders.
Selection Notes
Select this component when a 12.288 MHz reference is required in a small form factor SMD package. Consider the ±30 ppm stability limit for environmental variations and ensure the application supports the specified 10 pF load capacitance for optimal frequency accuracy.
Part Context
This part belongs to the QT325G series of quartz crystals from QST, characterized by its 3.2x2.5mm footprint. It serves as a fundamental timing element in modern electronic designs where space constraints and precision are critical factors for system synchronization.
Replacement Considerations
Direct substitutes include other 12.288 MHz crystals with identical 3.2x2.5mm SMD packages, 10pF load capacitance, and ±30ppm stability ratings. Verify pinout and mechanical dimensions match before integration.
