XTL751-S999-420

Crystals Overview

The Siward XTL751-S999-420 is a surface-mount tuning fork crystal resonator designed for precision 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 7 pF and is housed in a compact 1610 package measuring 1.60 mm by 1.00 mm. It supports an operating temperature range of -40°C to +85°C, ensuring reliable performance across various environmental conditions.

Crystals Feature Summary

• Compact 1610 surface-mount package suitable for space-constrained designs
• High stability tuning fork design for accurate timekeeping
• Wide operating temperature range for diverse environmental reliability

Crystals Applications

• Wearable electronic devices
• Smartwatches and fitness trackers
• Portable consumer electronics requiring precise clock signals

Crystals Procurement Notes

Verify the specific load capacitance requirement against your circuit design, as this model specifies 7 pF. Confirm that the 1610 footprint matches your PCB layout constraints. Ensure the ±20 ppm tolerance meets the system's timing accuracy requirements before finalizing procurement.

Crystals Selection Notes

Select this component when a small form factor is critical for wearable or portable device integration. The 1610 size offers a balance between miniaturization and manufacturability. Consider the 7 pF load capacitance compatibility with the host oscillator circuit to ensure optimal frequency stability and startup characteristics.

Crystals Part Context

This part belongs to the Siward XTL75 series of quartz crystal resonators. The series specializes in tuning fork crystals optimized for low-power, high-reliability timing applications. The XTL751 variant specifically targets ultra-compact implementations within the broader portfolio of frequency control solutions.

Crystals Replacement Considerations

Cross-reference with other 32.768 kHz crystals in the 1610 package from compatible manufacturers. Verify equivalent electrical parameters, including load capacitance and tolerance, to ensure functional interchangeability without redesigning the host circuit.