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Product Detailed Parameters
- Description：1.6X1.2 SEAM SEAL MHZ QUARTZ XTA
- Series：QT161S
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：26 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±30ppm
- Load Capacitance：7pF
- 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：0.063" L x 0.047" W (1.60mm x 1.20mm)
- Height - Seated (Max)：0.016" (0.40mm)
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Overview
The QT161S-26.000MAAY-T is a fundamental mode quartz crystal oscillator manufactured by QST. It operates at a nominal frequency of 26 MHz with a load capacitance of 7 pF. The component features a 4-SMD, no-lead package with dimensions of 1.60mm x 1.20mm x 0.35mm. Frequency stability is specified at ±30 ppm at 25°C and ±30 ppm over the temperature range of -20°C to +70°C.
Feature Summary
- Seam seal construction for enhanced environmental protection
- Fundamental operating mode for precise frequency generation
- Compact surface-mount design suitable for space-constrained PCB layouts
Applications
- Clock signal generation in microcontroller circuits
- Frequency reference for wireless communication modules
- Timing sources for consumer electronic devices
Procurement Notes
Verify the specific suffix MAAY against official QST documentation to confirm the exact load capacitance and stability specifications. Ensure the ordering part number matches the required temperature range and package type. Cross-reference datasheets from authorized distributors to confirm RoHS compliance status before finalizing procurement orders.
Selection Notes
Select this component when a 26 MHz fundamental frequency is required with tight stability constraints. The 7 pF load capacitance must match the oscillator circuit design. Consider the 1.6x1.2mm footprint for board space optimization. Verify thermal performance requirements against the -20°C to +70°C operational range.
Part Context
This crystal belongs to QST's seam seal series, designed for high reliability in surface-mount applications. The 4-SMD no-lead package offers improved solder joint integrity compared to traditional leaded packages. It serves as a critical timing element in digital systems requiring stable clock references.
Replacement Considerations
Direct substitutes include other 26 MHz crystals with identical 7 pF load capacitance and 1.6x1.2mm dimensions. Verify that alternative manufacturers offer equivalent ±30 ppm stability across the same temperature range. Ensure pinout compatibility and mounting style match the original design.
FAQ
What is the load capacitance specification?
The load capacitance is 7 pF.
Does this component support SMT mounting?
Yes, it utilizes a 4-SMD, no-lead package for surface-mount technology.
