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Product Detailed Parameters
- Description：3.2X2.5 30PPM @25C 30PPM (-40 TO
- Series：QT325G
- Mfr：QST
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MHz Crystal
- Frequency：14.7456 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：-
- Load Capacitance：-
- ESR (Equivalent Series Resistance)：100 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-20°C ~ 70°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 QST QT325G-14.7456MAHE-T is a fundamental mode quartz crystal resonator operating at 14.7456 MHz. It features a 4-SMD, No Lead package with dimensions of 3.20mm x 2.50mm and a height of 0.8mm. The component has an equivalent series resistance (ESR) of 100 Ohms and a load capacitance of 12pF. Frequency tolerance is ±30ppm within the -20°C to +70°C operating temperature range.
Feature Summary
- Fundamental oscillation mode for stable frequency generation
- Glass seal construction for environmental protection
- Surface mount design compatible with automated assembly
Applications
- Wireless networking equipment clock sources
- Embedded system timing references
- Consumer electronics oscillator circuits
Procurement Notes
Verify the specific suffix 'MAHE' against official QST documentation to confirm the exact frequency tolerance and temperature range specifications. Ensure the 4-SMD no-lead package footprint matches the target PCB layout. Confirm RoHS compliance status through current manufacturer declarations prior to procurement.
Selection Notes
Select this component when a 14.7456 MHz reference is required in a compact surface-mount form factor. The 100 Ohm ESR and 12pF load capacitance must align with the host oscillator circuit design. Consider the -20°C to +70°C industrial temperature range suitability for the intended application environment.
Part Context
This part belongs to the QT325G series of glass-sealed quartz crystals from QST. These components are designed for general-purpose timing applications requiring reliable performance in consumer and industrial electronics. The series offers various frequency options within the standard 3.2x2.5mm SMD package.
Replacement Considerations
Cross-reference with other manufacturers offering 14.7456 MHz crystals in 3225-4P packages. Verify that substitute parts match the 100 Ohm ESR and 12pF load capacitance requirements. Ensure the replacement maintains the same fundamental mode operation and physical dimensions for direct board compatibility.
