405I35D20M00000

Crystals Overview

The CTS-Frequency Controls 405I35D20M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 20 MHz. It features a load capacitance of 18 pF and a frequency tolerance of ±30 ppm, with a stability of ±50 ppm. The component exhibits an equivalent series resistance (ESR) of 60 Ohms and operates within a temperature range of -40°C to +85°C. Packaged in a 4-SMD, no-lead form factor measuring 5.00 mm x 3.20 mm with a maximum height of 1.05 mm, it supports base harmonic operation.

Crystals Feature Summary

• Surface-mount design for automated assembly processes
• Wide industrial temperature rating for harsh environments
• Fundamental mode operation for precise timing control

Crystals Applications

• Microcontroller clock generation
• Communication interface timing circuits
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix 'I' indicates the extended temperature range (-40°C to +85°C) compared to standard commercial variants. Confirm the 18 pF load capacitance matches the target circuit design requirements. Ensure the 60 Ohm ESR specification aligns with the oscillator driver strength capabilities of the host device to prevent overdriving or failure to start.

Crystals Selection Notes

Select this component when an industrial-grade temperature range is required alongside a 20 MHz fundamental frequency. The 18 pF load capacitance necessitates careful PCB trace capacitance management. Consider the 60 Ohm ESR value against the oscillator circuit's minimum loading requirements. The 4-SMD package size offers a compact footprint suitable for space-constrained designs.

Crystals Part Context

This part belongs to the CTS 405 series of SMD crystals. The 'I' suffix typically denotes the industrial temperature grade variant within this product line. It shares the same physical dimensions as other 405 series members but differs in electrical parameters such as load capacitance and temperature range specifications.

Crystals Replacement Considerations

Direct substitutes include 405C35D20M00000 and 405I35E20M00000 from CTS-Frequency Controls. Verify that alternative parts match the 18 pF load capacitance and 60 Ohm ESR values. Ensure replacement components maintain the -40°C to +85°C operating range if industrial grading is critical.