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Product Detailed Parameters
- Description：2.5X2.0 SEAM SEAL MHZ QUARTZ XTA
- Series：QT252S
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：20 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±30ppm
- Load Capacitance：12pF
- 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：0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height - Seated (Max)：0.022" (0.55mm)
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Overview
The QT252S-20.000MAHE-T is a surface-mount quartz crystal oscillator manufactured by TXC Corporation, operating at a nominal frequency of 20 MHz. It features a 2.5x2.0 mm seam seal package with four ceramic pads. The component exhibits a frequency tolerance of ±30 ppm at 25°C and ±30 ppm over the -40 to +85°C temperature range. It utilizes a load capacitance of 12 pF and is supplied in reel packaging.
Feature Summary
- Seam sealed metal package construction for environmental protection
- High frequency stability across industrial temperature ranges
- Surface mount design optimized for automated assembly
Applications
- High-power motor control cabinets
- Precision timing circuits requiring stable clock signals
- Industrial electronic systems demanding reliable oscillation
Procurement Notes
Verify manufacturer designation as TXC Corporation despite QST marketplace listing. Confirm package dimensions and pin configuration match application requirements. Ensure compatibility with 12 pF load capacitance specifications. Validate temperature range compliance for intended operational environment prior to integration.
Selection Notes
Select this component when precise 20 MHz timing is required in space-constrained designs. The ±30 ppm stability suits general industrial applications. Consider alternative models if tighter tolerance or different load capacitance is necessary. Verify supply chain availability through authorized distributors due to potential regional sales restrictions.
Part Context
This part belongs to the QT252S series of seam seal crystals from TXC Corporation. The series offers various frequencies and stability grades within a compact 2.5x2.0 mm footprint. Similar parts include variants with different frequency tolerances or temperature ranges, such as the QT252S-24.000MDDQ-T.
Replacement Considerations
QT252S-20.000MEEQ-T offers superior frequency accuracy (±10ppm) compared to standard ceramic resonators. Cross-reference tools may identify parametrically similar parts for substitution purposes.
