405I35E20M00000

Crystals Overview

The CTS-Frequency Controls 405I35E20M00000 is a surface-mount fundamental mode quartz crystal resonator operating at a nominal frequency of 20 MHz. It features a load capacitance of 20 pF and a frequency tolerance of ±30 ppm, with a stability of ±50 ppm. The component exhibits an equivalent series resistance (ESR) of 40 Ohms and operates within a temperature range of -40°C to +85°C. Housed in a compact 4-SMD, No Lead package measuring 5.00 mm x 3.20 mm with a maximum height of 0.85 mm, it supports RoHS3 compliance and MSL Level 1.

Crystals Feature Summary

• Fundamental mode operation for precise frequency generation
• Compact 4-SMD surface-mount footprint for automated assembly
• Wide industrial temperature rating for environmental resilience

Crystals Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Crystals Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm exact electrical parameters and packaging options. Ensure the design-in process accounts for the specified load capacitance and ESR values to maintain frequency accuracy. Confirm RoHS3 compliance status if required by regulatory standards. Cross-reference the package dimensions with the PCB footprint library to ensure proper solder joint formation during reflow processes.

Crystals Selection Notes

Select this component when a 20 MHz reference is required in a space-constrained surface-mount design. The 20 pF load capacitance must match the external circuit requirements to achieve the stated ±30 ppm tolerance. Consider the 40 Ohm ESR limit for oscillator circuit stability. The wide temperature range makes it suitable for applications exposed to varying thermal conditions without performance degradation.

Crystals Part Context

This part belongs to the CTS 405 Series of high-stability crystals designed for general-purpose electronic applications. The series offers various frequencies and packages, providing designers with flexible options for timing needs. The 405I35E20M00000 specifically targets the 20 MHz niche with optimized performance characteristics for digital systems requiring reliable clock signals.

Crystals Replacement Considerations

Direct substitutes include other 20 MHz SMD crystals from CTS or competitors with matching 20 pF load capacitance and similar ESR. Verify that alternative parts meet the same -40°C to +85°C temperature range and package dimensions to ensure mechanical compatibility.