9HT7-32.768KAZC-T

Crystals Overview

The TXC CORPORATION 9HT7-32.768KAZC-T is a surface-mount quartz crystal resonator designed for low-frequency timing applications. It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) characteristic typical of the 9HT7 series. It utilizes a 2-SMD, no-lead package with dimensions of 2.0 mm in length, 1.2 mm in width, and a maximum height of 0.6 mm. The device supports fundamental mode operation and functions within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Miniature 2.0mm x 1.2mm SMD footprint optimized for space-constrained designs
• High stability quartz construction ensuring reliable clock signals
• Lead-free and RoHS compliant manufacturing process

Crystals Applications

• Mobile phone timing circuits
• Notebook computer real-time clocks
• Digital still camera synchronization

Crystals Procurement Notes

Verify the specific load capacitance requirement of 9pF against the target circuit design to ensure frequency accuracy. Confirm that the PCB land pattern matches the 2.0mm x 1.2mm package dimensions specified by TXC Corporation. Ensure compliance with RoHS3 standards if required by the end-product regulations. Check for any specific reflow soldering profile recommendations provided in the official datasheet to prevent mechanical stress on the crystal element during assembly.

Crystals Selection Notes

Select this component when a compact form factor is prioritized alongside standard watch-frequency accuracy. The 9HT7 series offers a balance between size reduction and performance compared to larger through-hole alternatives. Consider the ±20 ppm tolerance sufficient for general consumer electronics where extreme precision is not critical. Evaluate the 9pF load capacitance compatibility with the oscillator circuit's internal capacitors to avoid frequency deviation issues in the final application.

Crystals Part Context

This part belongs to the TXC 9HT Series of miniature quartz crystals, which are specifically engineered for portable electronic devices. The series includes various packages such as 9HT7, 9HT9, and 9HT10, catering to different size and performance requirements. The 9HT7 variant represents one of the smaller footprints available in this lineup, targeting applications where board real estate is limited but reliable 32.768 kHz timing is essential for system operations.

Crystals Replacement Considerations

Direct substitutes include other 9HT7 series variants with compatible electrical parameters. Verify pinout and dimensional compatibility before swapping with different series like 9HT9 or 9HT10 due to package size differences.