QT3CD-32.768KDZB-T

Overview

The QT3CD-32.768KDZB-T is a quartz crystal resonator manufactured by QST Products, LLC. It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 6 pF and is housed in a compact 2-SMD, No Lead package with dimensions of 3.2 x 1.5 x 0.9 mm. It is rated for an operating temperature range of -40°C to +85°C, ensuring stability in various electronic applications.

Feature Summary

• Compact surface-mount design suitable for space-constrained PCB layouts
• Stable frequency output for precise timekeeping applications
• Wide industrial temperature rating for reliable operation

Applications

• Real-time clock circuits
• Embedded systems requiring low-frequency timing references
• Industrial automation control boards

Procurement Notes

Verify the specific suffix KDZB-T against official QST documentation to confirm the 6pF load capacitance and 3.2x1.5mm package dimensions. Ensure the selected variant meets the required ±20ppm tolerance and -40°C to +85°C temperature range for your specific application environment before finalizing procurement.

Selection Notes

Select this component when a standard 32.768 kHz reference is needed for microcontroller-based timekeeping or sleep mode synchronization. The 6pF load capacitance must match the oscillator circuit requirements of the host device. Consider the small footprint and industrial temperature range if space and environmental durability are critical constraints.

Part Context

This part belongs to QST's line of surface-mount quartz crystals designed for consumer and industrial electronics. It serves as a fundamental timing element for digital logic circuits that require accurate second-based counting or periodic interrupt generation without the need for complex external calibration.

Replacement Considerations

Direct substitutes include other 32.768 kHz SMD crystals with identical 3.2x1.5mm footprints and 6pF load capacitance. Verify equivalent tolerance (±20ppm) and temperature range (-40°C to +85°C). Cross-reference with manufacturer-specific pin-compatible alternatives from other suppliers if supply chain constraints exist.