XTL741-S999-298

Crystals Overview

The Siward XTL741-S999-298 is a surface-mount quartz crystal resonator designed for precision timing applications. It operates at a fundamental frequency of 32.768 kHz with a normal temperature frequency tolerance of ±20 ppm. The component features a load capacitance of 12.5 pF and an equivalent series resistance (ESR) of 80 kOhms. It is housed in a compact SMD2012-2P package, measuring 2.0 mm by 1.2 mm. The device supports an operating temperature range from -40°C to +85°C, ensuring reliable performance across various environmental conditions.

Crystals Feature Summary

• Ultra-thin and compact SMD2012-2P package design for space-constrained PCB layouts
• High stability quartz construction providing precise 32.768 kHz timing reference
• Wide operating temperature range suitable for diverse industrial and consumer environments

Crystals Applications

• Real-time clock circuits in portable electronic devices
• Microcontroller system oscillators requiring low power consumption
• Smart home IoT sensors and wearable technology modules

Crystals Procurement Notes

Verify the specific suffix 'S999' against the manufacturer's official datasheet to confirm exact electrical parameters and pin configuration. Ensure compatibility with reflow soldering profiles specified for the SMD2012-2P package. Cross-reference the load capacitance requirement of your circuit design with the component's 12.5 pF specification to maintain frequency accuracy.

Crystals Selection Notes

Select this component when a small form factor is critical alongside standard 32.768 kHz functionality. The ±20 ppm tolerance suits general-purpose timekeeping rather than high-precision navigation systems. Consider the 80 kOhm ESR value to ensure proper oscillator circuit startup and stability within the target application's impedance requirements.

Crystals Part Context

This part belongs to the Siward XTL741 series of thin-type crystals. The series utilizes proprietary manufacturing techniques to achieve reduced thickness while maintaining mechanical robustness. The XTL741 model line targets modern electronics demanding miniaturization without compromising timing integrity or thermal resilience.

Crystals Replacement Considerations

Direct substitutes include other 32.768 kHz crystals in the SMD2012-2P package with matching ±20 ppm tolerance and 12.5 pF load capacitance. Verify that alternative manufacturers specify compatible ESR values near 80 kOhms to prevent oscillator failure.