XTL581-M118-175

Crystals Overview

The Siward XTL581-M118-175 is a surface-mount crystal resonator designed for precision timing applications. It operates at a nominal frequency of 40 MHz with a frequency tolerance of ±7 ppm. The component features a load capacitance of 7 pF and utilizes a 4-SMD, no-lead package configuration with dimensions of 2.5 mm by 2.0 mm. This passive piezoelectric device provides stable oscillation frequencies for digital circuits.

Crystals Feature Summary

• Surface-mount construction for automated assembly
• High frequency stability within specified tolerance
• Compact footprint suitable for space-constrained designs

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm package dimensions match PCB footprint requirements. Check manufacturer datasheets for storage conditions and soldering profiles to maintain component integrity during assembly processes.

Crystals Selection Notes

Select this component when a 40 MHz reference signal is required in a compact surface-mount form factor. Ensure the circuit design supports a 7 pF load capacitance to achieve accurate frequency performance. Consider thermal stability requirements as the ±7 ppm tolerance defines the operational range under varying environmental conditions.

Crystals Part Context

This part belongs to Siward's portfolio of quartz crystal resonators, which utilize the piezoelectric effect of cut quartz plates to generate precise frequencies. The XTL series typically includes various packages and frequencies tailored for consumer electronics and industrial control applications requiring reliable timekeeping signals.

Crystals Replacement Considerations

Cross-reference with other 40 MHz SMD crystals from manufacturers such as Epson, NDK, or TXC. Verify that substitute parts match the 2.5x2.0 mm package size, 7 pF load capacitance, and ±7 ppm tolerance to ensure electrical and mechanical compatibility without redesigning the host circuit.