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Product Detailed Parameters
- Description：3.2X2.5 XTAL 10PPM 20PPM 12PF
- Series：QT325G
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：20 MHz
- Frequency Stability：±20ppm
- Frequency Tolerance：±10ppm
- Load Capacitance：12pF
- ESR (Equivalent Series Resistance)：60 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-20.000MEIE-T is a surface-mount quartz crystal resonator manufactured by QST Products, LLC. It operates at a fundamental frequency of 20 MHz with a load capacitance of 12 pF. The component exhibits a frequency stability of ±10 ppm over an operating temperature range of -20°C to +70°C. It features a 4-SMD, no-lead package with dimensions of 3.2 mm x 2.5 mm and a maximum height of 0.8 mm.
Feature Summary
- Fundamental mode quartz crystal operation for precise timing applications
- Compact 4-SMD no-lead surface mount package design
- High frequency stability of ±10 ppm within specified industrial temperature limits
Applications
- Clock signal generation in digital circuits
- Microcontroller system timing references
- Communication interface synchronization
Procurement Notes
Verify the specific suffix MEIE against official QST documentation to confirm the ±10 ppm stability and -20°C to +70°C temperature range. Ensure the 12 pF load capacitance matches the target circuit design requirements before procurement.
Selection Notes
Select this component when a 20 MHz fundamental frequency is required with tight ±10 ppm tolerance. The 12 pF load capacitance must align with the oscillator circuit's effective load capacitance. The 4-SMD footprint suits space-constrained PCB layouts.
Part Context
This part belongs to the QT325G series of SMD crystals from QST. The series offers various frequency and stability options. The MEIE suffix specifically denotes the ±10 ppm stability and -20°C to +70°C temperature range configuration within this product line.
Replacement Considerations
Consult official QST substitution guides for direct equivalents. Verify that any substitute maintains the 20 MHz frequency, 12 pF load capacitance, and ±10 ppm stability requirement while fitting the 3.2x2.5 mm package.
FAQ
What is the operating temperature range for this crystal?
The QT325G-20.000MEIE-T operates within a temperature range of -20°C to +70°C.
What is the load capacitance specification?
The specified load capacitance for this component is 12 pF.
