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Product Detailed Parameters
- Description：3.2X2.5 SEAM SEAL MHZ QUARTZ XTA
- Series：QT325S
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：30 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±30ppm
- Load Capacitance：8pF
- ESR (Equivalent Series Resistance)：50 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)：0.031" (0.80mm)
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Overview
The QT325S-30.000MAHV-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 30 MHz with a load capacitance of 8 pF and an equivalent series resistance of 50 Ohms. The component exhibits a frequency stability of ±30 ppm at 25°C and across the operating temperature range of -40°C to +85°C. Housed in a compact 4-SMD, No Lead package measuring 3.2 mm x 2.5 mm x 0.7 mm, it supports base mode operation and complies with RoHS3 standards.
Feature Summary
- Compact 4-SMD no-lead surface mount package
- High frequency stability within specified temperature ranges
- Compliant with RoHS3 environmental regulations
Applications
- Embedded communication systems
- Microcontroller clock sources
- Digital signal processing circuits
Procurement Notes
Verify that the specific suffix HV-T matches the required load capacitance and stability specifications for your design. Confirm the package dimensions align with your PCB footprint requirements. Ensure the manufacturer is identified as QST to avoid confusion with similar part numbers from other vendors. Check datasheet details for soldering profile recommendations to ensure reliable assembly.
Selection Notes
Select this component when a 30 MHz reference is required in a small form factor. The 8 pF load capacitance must match the oscillator circuit design. Consider the ±30 ppm stability requirement against system timing constraints. The wide operating temperature range suits industrial or automotive environments where thermal variation is expected.
Part Context
This part belongs to the QT325S series of surface-mount crystals from QST. The series offers various frequencies and packages optimized for space-constrained applications. Similar models in the lineup may differ in frequency, size, or stability, requiring careful comparison of datasheet parameters before substitution.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the available documentation. Verify compatibility with existing designs if considering alternatives from other manufacturers.
