QT1CS-32.768KDZB-T

Overview

The QT1CS-32.768KDZB-T is a quartz crystal resonator manufactured by QST, designed for precision timing applications. It operates at a fundamental 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 utilizes a 4-SMD, no lead package configuration. The physical dimensions are specified as 1.2 mm x 1.0 mm. This surface-mount device is RoHS compliant and lead-free, suitable for integration into compact electronic circuits requiring stable clock signals.

Feature Summary

• Precision frequency stability with ±20 ppm tolerance at 25°C
• Compact 4-SMD no-lead surface mount package design
• RoHS compliant and lead-free construction

Applications

• Real-time clock circuits in portable electronics
• Microcontroller system clock references
• Low-power embedded device timing sources

Procurement Notes

Verify the specific ordering suffix KDZB-T against the manufacturer's official datasheet to ensure correct load capacitance and package variant. Confirm that the 6 pF load capacitance matches the target circuit design requirements. Check for RoHS compliance documentation if environmental regulations apply to the final assembly. Ensure the 4-SMD no-lead footprint aligns with the PCB land pattern specifications.

Selection Notes

Select this component when a small form factor is required for 32.768 kHz timing. The 6 pF load capacitance dictates compatibility with specific oscillator circuit designs. Consider the ±20 ppm tolerance for applications where moderate frequency accuracy is sufficient. The SMD no-lead package facilitates automated assembly processes compared to through-hole alternatives.

Part Context

This part belongs to QST's line of quartz crystal resonators optimized for low-frequency timing applications. The QT1CS series specifically targets space-constrained designs utilizing surface-mount technology. It serves as a critical passive component for generating precise time-base signals in digital systems.

Replacement Considerations

Direct substitutes must match the 32.768 kHz frequency, 6 pF load capacitance, and 4-SMD no-lead package dimensions. Verify equivalent ±20 ppm tolerance and operating temperature range. Cross-reference with other manufacturers offering identical footprint and electrical characteristics.