XTL921-U11-581

Crystals Overview

The Siward XTL921-U11-581 is an ultra-miniature quartz crystal resonator designed for high-frequency applications. It operates at a fundamental frequency of 76.8 MHz with a frequency tolerance of ±9 ppm. The component features a load capacitance of 8 pF and an equivalent series resistance (ESR) of 50 Ohms. It is housed in a compact 4-SMD, no lead package with dimensions of 1.0 mm x 0.8 mm, making it suitable for space-constrained electronic designs.

Crystals Feature Summary

• Ultra-miniature 1.0 mm x 0.8 mm surface-mount package
• High stability ±9 ppm frequency tolerance
• Low equivalent series resistance for efficient operation

Crystals Applications

• Wearable electronics devices
• Internet of Things (IoT) modules
• Wireless communication equipment

Crystals Procurement Notes

Verify the specific ordering suffix to ensure the correct frequency and tolerance match the design requirements. Confirm the package type matches the PCB footprint. Check manufacturer datasheets for storage conditions and soldering profiles to maintain component integrity during assembly.

Crystals Selection Notes

Select this component when space constraints are critical due to its 1.0 x 0.8 mm form factor. Ensure the circuit design supports the 8 pF load capacitance and 50 Ohm ESR specifications. Consider the ±9 ppm tolerance against system timing requirements before integration.

Crystals Part Context

This part belongs to the Siward XTL92 series, which specializes in ultra-miniature crystals. The series targets modern portable electronics requiring small footprints without compromising electrical performance. It complements larger standard packages by offering similar electrical characteristics in a significantly reduced physical size.

Crystals Replacement Considerations

Direct substitutes must match the 76.8 MHz frequency, 8 pF load capacitance, and 1.0 x 0.8 mm package dimensions. Verify that alternative components meet the same ±9 ppm tolerance and 50 Ohm ESR specifications to ensure circuit compatibility.