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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：32 MHz
- Frequency Stability：±20ppm
- Frequency Tolerance：±20ppm
- Load Capacitance：12pF
- ESR (Equivalent Series Resistance)：80 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-32.000MDDE-T is a surface-mount crystal oscillator manufactured by QST, operating at a nominal frequency of 32 MHz. It features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 80 Ohms. The component utilizes a 4-SMD, No Lead package with dimensions of 1.6 x 1.2 x 0.35 mm. Frequency stability is specified at ±20 ppm over the temperature range of -20°C to +70°C.
Feature Summary
- Compact 4-SMD no-lead surface mount design for automated assembly
- High frequency stability of ±20 ppm within standard industrial temperature limits
- Optimized load capacitance of 12 pF for precise circuit integration
Applications
- Microcontroller clock sources
- Communication module timing references
- Consumer electronics internal clocks
Procurement Notes
Verify the specific suffix MDDE against official QST documentation to confirm the ±20 ppm stability rating and 12 pF load capacitance. Ensure the required temperature range of -20°C to +70°C aligns with system operational requirements. Confirm package compatibility with PCB footprint specifications before procurement.
Selection Notes
Select this component when a small form factor SMD crystal is required for 32 MHz applications. The 12 pF load capacitance must match the oscillator circuit design. Consider the ±20 ppm stability specification for systems requiring moderate precision within the -20°C to +70°C operating window.
Part Context
This part belongs to the QT161S series of surface-mount crystals from QST. The series offers various stability options denoted by suffix letters, such as D for ±20 ppm or E for ±10 ppm. The QT161S-32.000MDDE-T specifically provides a balance of size and performance for general-purpose timing applications.
Replacement Considerations
Direct substitutes include other 32 MHz SMD crystals with identical 1.6x1.2mm footprints and 12 pF load capacitance. Verify that alternative parts meet the same ±20 ppm stability requirement over the -20°C to +70°C range to ensure functional equivalence.
