QT2C-32.768KDZF-T

Overview

The QT2C-32.768KDZF-T is a surface-mount quartz crystal resonator manufactured by QST. It operates at a fundamental frequency of 32.768 kHz, suitable for precision timing applications. The device features a compact 2-SMD, no-lead package with dimensions of 2.0 mm x 1.2 mm x 0.6 mm. Key electrical parameters include a load capacitance of 12.5 pF and a frequency tolerance of ±20 ppm at 25°C. The unit exhibits an equivalent series resistance (ESR) of 90 kOhms and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Compact 2.0x1.2 mm surface-mount footprint designed for space-constrained PCB layouts.
• Quartz tuning fork resonator technology ensuring stable oscillation at 32.768 kHz.
• Wide industrial operating temperature range supporting environmental variability.

Applications

• Real-time clock circuits in portable electronic devices
• Microcontroller system clocks requiring low power consumption
• Wearable technology and smart home sensors

Procurement Notes

Verify the manufacturer designation on the component marking against official QST documentation to ensure authenticity. Confirm that the specific suffix matches the required load capacitance and tolerance specifications for your circuit design. Cross-reference the datasheet revision date to ensure compliance with current manufacturing standards. Request sample units for initial integration testing before committing to bulk orders.

Selection Notes

Select this component when a small form factor is critical for the application design. Ensure the host oscillator circuit is compatible with the specified 12.5 pF load capacitance to maintain accuracy within the ±20 ppm tolerance. Consider the 90 kOhm ESR value when designing drive level constraints. This part is appropriate for general-purpose timing where extreme stability is not required.

Part Context

This model belongs to the QT2C series of surface-mount crystals from QST. It utilizes standard quartz material for reliable frequency generation. The series is engineered for high-volume production environments requiring consistent performance across temperature variations. It serves as a direct replacement for other industry-standard 32.768 kHz SMD crystals with matching physical dimensions.

Replacement Considerations

Compatible substitutes must match the 2.0x1.2 mm package size and 32.768 kHz frequency. Verify equivalent load capacitance (12.5 pF) and tolerance (±20 ppm). Check if alternative manufacturers offer identical pin-out configurations and thermal characteristics to ensure seamless integration without PCB redesign.