406I35E27M00000

Crystals Overview

The 406I35E27M00000 is a surface-mount fundamental mode crystal oscillator manufactured by CTS-Frequency Controls. It operates at a nominal frequency of 27 MHz with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a frequency tolerance of ±30 ppm and stability of ±50 ppm. It is housed in a compact 4-SMD, no-lead package measuring 6.00mm x 3.50mm with a maximum height of 1.20mm. Designed for industrial applications, it supports a wide operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Industrial-grade temperature rating spanning -40°C to +85°C
• Fundamental mode operation for precise timing control
• Compact 4-SMD footprint suitable for space-constrained designs

Crystals Applications

• Industrial communication systems requiring stable clock signals
• Microcontroller and DSP baseband processing units
• Automotive electronic control modules
• Test and measurement instrumentation equipment

Crystals Procurement Notes

Verify the specific suffix 'I' indicates the extended industrial temperature range (-40°C to +85°C), distinct from commercial variants. Confirm that the 40 Ohm ESR aligns with the oscillator circuit design requirements. Ensure the 20pF load capacitance matches the host system's capacitive loading specifications to maintain frequency accuracy within the specified ±30 ppm tolerance limits.

Crystals Selection Notes

Select this component when a 27 MHz reference is required for harsh environments exceeding standard commercial limits. The 40 Ohm ESR value must be compatible with the driving circuit's oscillation startup conditions. Consider the 6.00mm x 3.50mm package dimensions against available PCB real estate. This part serves as a direct replacement for other 406 series crystals sharing identical electrical parameters and form factor constraints.

Crystals Part Context

This device belongs to the CTS 406 Series of surface-mount crystals, designed for high-reliability applications. The series offers various frequencies and packages, with the 'I' suffix denoting industrial temperature performance. It complements the broader portfolio of frequency control solutions provided by CTS-Frequency Controls for digital signal processing and communication infrastructure.

Crystals Replacement Considerations

Direct substitutes include the 406C35E27M00000, though it typically offers a narrower commercial temperature range. Verify that any alternative maintains the 40 Ohm ESR and 20pF load capacitance to ensure circuit compatibility without redesign.