QTK532-32.768KBE-T

Overview

The QTK532-32.768KBE-T is a quartz crystal oscillator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 32.768 kHz with a CMOS output signal. The device supports a supply voltage of 3.3V and maintains a maximum supply current of 3mA. Frequency stability is rated at ±50ppm across an operating temperature range of -40°C to +85°C. The component utilizes a 4-SMD, No Lead package with body dimensions of 5.0x3.2 mm.

Feature Summary

• CMOS output interface compatible with standard digital logic circuits
• Surface-mount construction in a compact 4-SMD no-lead package
• Designed for low-power operation within specified voltage limits

Applications

• Real-time clock timing references
• Microcontroller system clocks
• Embedded device synchronization

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct voltage and tolerance specifications. Confirm that the package dimensions and pinout match the target PCB footprint requirements. Ensure the selected variant meets the required operating temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a precise 32.768 kHz reference is required for timekeeping or low-frequency timing applications. Consider the ±50ppm stability rating relative to system accuracy needs. Evaluate the 3.3V supply requirement against available power rails. Ensure the surface-mount form factor aligns with assembly capabilities and space constraints.

Part Context

This oscillator belongs to QST's line of quartz-based timing components. It provides a stable square wave output derived from a quartz resonator. The part is distinct from RTC ICs, serving primarily as a clock source rather than a complete timekeeping solution with calendar functions.

Replacement Considerations

Direct substitutes may include other 32.768 kHz CMOS oscillators in similar SMD packages. Verify compatibility regarding supply voltage, output drive strength, and frequency stability before substitution.