QT2CL-32.768KDZB-T

Overview

The QT2CL-32.768KDZB-T is a quartz crystal oscillator manufactured by QST, designed for precision timing applications. It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±20 ppm at 25°C. The component features a load capacitance of 6 pF and an equivalent series resistance (ESR) of 70 kOhms. It utilizes a lead-free SMD package with dimensions of 2.0 x 1.2 mm. The device is rated for operation within a temperature range of -40°C to +85°C, ensuring stability in various environmental conditions.

Feature Summary

• Precision quartz crystal construction for stable oscillation
• Lead-free surface mount design compliant with RoHS standards
• Optimized for low power consumption in portable electronics

Applications

• Real-time clock circuits in microcontroller systems
• Watch and wearable device timing references
• Low-frequency clock generation for IoT sensors

Procurement Notes

Verify the manufacturer designation on the datasheet, as listings may reference TXC Corporation or QST for identical part numbers. Confirm the specific suffix 'KDZB' matches the required package and tolerance specifications. Ensure the load capacitance requirement of your circuit aligns with the 6 pF specification provided in the official documentation before procurement.

Selection Notes

Select this component when a compact 2.0x1.2 mm footprint is required for 32.768 kHz timing. The ±20 ppm tolerance suits general-purpose real-time clocks where high precision is not critical. Consider the 70 kOhm ESR value to ensure compatibility with the oscillator circuit's drive level requirements. Verify the operating temperature range meets the application's environmental constraints.

Part Context

This part belongs to the QT2CL series of thin film quartz crystals. These components are engineered for cost-effective mass production while maintaining reliable performance. The series typically includes variants with different tolerances and packages, but this specific model focuses on standard accuracy for consumer electronics.

Replacement Considerations

Cross-reference with QT2C-32.768KDZB-T if package differences are acceptable. Verify that substitute parts maintain the same 6 pF load capacitance and 32.768 kHz frequency. Check ESR values to prevent overdriving the oscillator circuit.