QT1CS-32.768KDZY-T

Overview

The QT1CS-32.768KDZY-T is a quartz crystal resonator manufactured by QST Products, LLC. It operates at a fundamental frequency of 32.768 kHz with a frequency stability of ±20 ppm at 25°C. The component utilizes a surface-mount CA4 package with dimensions of 1.2 x 1.0 mm and features a load capacitance of 7 pF. Designed for reliability in demanding environments, it supports an operating temperature range from -40°C to +85°C. The device is RoHS3 compliant and available in lead-free configurations.

Feature Summary

• Compact surface-mount design suitable for space-constrained PCB layouts
• Stable frequency output optimized for real-time clock applications
• Wide operating temperature range ensuring performance in industrial conditions

Applications

• Real-time clock circuits in consumer electronics
• Microcontroller system timing references
• Portable battery-powered devices requiring low power consumption

Procurement Notes

Verify the specific manufacturer designation, as this part number appears associated with both QST Products and TXC Corporation in distributor databases. Confirm the exact package dimensions and load capacitance requirements against your circuit design specifications before ordering. Ensure compliance with RoHS3 standards if required by your manufacturing process. Cross-reference the datasheet provided by the specific supplier to confirm electrical characteristics match your application needs.

Selection Notes

Select this component when a small form factor is critical for the design. The 7 pF load capacitance must match the oscillator circuit's requirements to ensure accurate frequency generation. Consider the ±20 ppm stability tolerance for timing accuracy needs. The wide temperature range makes it suitable for applications exposed to varying environmental conditions without significant frequency drift.

Part Context

This crystal belongs to QST's line of miniature surface-mount quartz resonators. It is part of a family designed for low-power, high-reliability timing applications. Similar variants exist with different package sizes or load capacitances, such as the QT1M series, which offers larger dimensions. The CA4 package format is standard for compact electronic assemblies.

Replacement Considerations

Direct substitutes may include other 32.768 kHz crystals with identical 7 pF load capacitance and CA4 package dimensions. Verify that alternative components maintain the same ±20 ppm stability and temperature range. Check compatibility with existing oscillator circuits regarding drive level and equivalent series resistance.