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Product Detailed Parameters
- Description：5.0X3.2 SEAM SEAL MHZ QUARTZ XTA
- Series：QT532S
- Mfr：QST
- Package：Tape & Reel (TR)
- Type：MHz Crystal
- Frequency：18.432 MHz
- Frequency Stability：±50ppm
- Frequency Tolerance：±50ppm
- Load Capacitance：20pF
- ESR (Equivalent Series Resistance)：40 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-20°C ~ 70°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.197" L x 0.126" W (5.00mm x 3.20mm)
- Height - Seated (Max)：0.041" (1.05mm)
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Overview
The QT532S-18.432MBBK-T is a surface-mount quartz crystal manufactured by QST Products, LLC. It operates at a fundamental frequency of 18.432 MHz with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a 4-SMD, No Lead package with dimensions of 5.0 mm x 3.2 mm. It supports base mode operation and is rated for an operating temperature range of -40°C to +85°C.
Feature Summary
- Provides stable timing signals for electronic circuits through fundamental resonance.
- Designed for surface-mount assembly in compact consumer electronics.
- Operates within extended industrial temperature ranges.
Applications
- Consumer products
- Cellular phones
- Digital Still Cameras (DSC)
Procurement Notes
Verify the specific suffix 'BBK' against official QST documentation to confirm the exact tolerance and temperature rating, as variations exist within the QT532S family. Ensure the 4-pin SMD footprint matches the target PCB design. Cross-reference the manufacturer part number directly with the supplier's current datasheet to validate availability and compliance status before finalizing procurement.
Selection Notes
Select this component when a 18.432 MHz reference signal is required for communication or clocking applications. The 20 pF load capacitance must align with the oscillator circuit design. Consider the 40 Ohm ESR for drive level sensitivity. This model is suitable for space-constrained devices requiring reliable performance across varying environmental conditions.
Part Context
This part belongs to the QT532S series of ceramic SMD crystals from QST. The series is characterized by its small form factor and suitability for portable electronics. Other variants in the family offer different frequencies such as 8 MHz, 12 MHz, and 13 MHz, sharing similar packaging and operational characteristics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative crystals based on frequency, load capacitance, ESR, and physical footprint specifications.
