405C25D08M00000

Crystals Overview

The CTS-Frequency Controls part number 405C25D08M00000 is a fundamental mode quartz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 8 MHz with a frequency tolerance of ±20 ppm and a frequency stability of ±50 ppm. The component features an equivalent series resistance (ESR) of 100 Ohms maximum and requires a load capacitance of 18 pF. It is housed in a compact 4-SMD, No Lead package with dimensions of 5.00 mm x 3.20 mm and a maximum height of 0.85 mm. The device supports a commercial operating temperature range of -20°C to +70°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental mode quartz crystal operation ensures precise timing signals.
• Compact 4-SMD no-lead package facilitates automated surface-mount assembly.
• Low equivalent series resistance supports efficient circuit drive levels.
• Compliant with RoHS3 environmental regulations for restricted substances.

Crystals Applications

• General-purpose microcontroller clock sources
• Communication interface timing circuits
• Consumer electronics control boards
• Industrial instrumentation timing references

Crystals Procurement Notes

Verify the specific suffix codes against the official manufacturer datasheet to confirm exact frequency tolerance and load capacitance requirements. Ensure that the ordering documentation matches the required frequency stability specifications for the target application environment. Cross-reference the package dimensions with the PCB footprint library to guarantee mechanical compatibility during surface-mount placement processes.

Crystals Selection Notes

Select this component when a fundamental mode crystal with ±20 ppm tolerance is required for 8 MHz applications. Consider the 18 pF load capacitance requirement to ensure proper oscillator circuit tuning. Evaluate the 100 Ohm ESR limit against the oscillator driver strength. Confirm that the commercial temperature range meets the operational thermal constraints of the final product design.

Crystals Part Context

This component belongs to the 405 Series of surface-mount crystals from CTS-Frequency Controls. The series offers various frequencies and package sizes optimized for high-volume manufacturing. The 405C25D08M00000 specifically utilizes a standard 5.0x3.2 mm footprint common in modern electronics. It serves as a passive frequency-determining element within active oscillator circuits or direct clock inputs.

Crystals Replacement Considerations

Direct substitutes within the same series include other 405 model variants with matching 8 MHz frequency and 18 pF load capacitance. Verify that any replacement maintains the same 100 Ohm ESR and fundamental mode operation. Ensure the alternative part supports the required ±20 ppm tolerance and commercial temperature range for functional equivalence.