QT26-32.768KHZB-B

Overview

The QT26-32.768KHZB-B is a cylindrical can, radial through-hole quartz crystal manufactured by QST. It operates at a nominal frequency of 32.768 kHz with a tolerance of ±5 ppm. The component features a load capacitance of 6 pF and dimensions of Ø1.9 mm diameter by 6 mm height. Designed for timekeeping applications, it utilizes a THT mounting style suitable for standard PCB assembly processes.

Feature Summary

• Radial leaded cylindrical can package design
• High precision frequency stability within ±5 ppm tolerance
• Optimized for low-power real-time clock circuits

Applications

• Real-time clock modules in consumer electronics
• Embedded systems requiring precise timekeeping
• Wearable devices with limited power budgets

Procurement Notes

Verify the specific load capacitance requirement of 6 pF against the target oscillator circuit design to ensure accurate frequency performance. Confirm that the radial through-hole package dimensions align with the printed circuit board layout constraints. Ensure the operating temperature range meets the environmental specifications of the final application environment.

Selection Notes

Select this component when a compact, high-stability 32.768 kHz source is required for timekeeping functions. The ±5 ppm tolerance ensures long-term accuracy without frequent calibration. The radial package facilitates easy manual or automated insertion into legacy or space-constrained designs.

Part Context

This part belongs to QST's line of timing devices, specifically focusing on quartz crystals for embedded applications. It serves as a fundamental frequency reference for microcontrollers and RTC ICs, providing the necessary clock signal for system synchronization and calendar functions.

Replacement Considerations

Compatible substitutes include other 32.768 kHz crystals with identical 6 pF load capacitance and ±5 ppm tolerance. Ensure replacement parts maintain the same cylindrical can form factor and radial lead configuration to fit existing footprints.