405I33D27M00000

Crystals Overview

The CTS-Frequency Controls 405I33D27M00000 is a surface-mount MHz crystal operating at 27.0000 MHz with ±30ppm frequency tolerance and ±50ppm stability. It features an 18pF load capacitance and 50 Ohms ESR. The component utilizes a 4-SMD, No Lead package (5.00mm x 3.20mm x 0.85mm max) and supports fundamental mode operation across an industrial temperature range of -40°C to +85°C.

Crystals Feature Summary

• Industrial-grade temperature rating for extended environmental reliability
• Fundamental resonance mode operation for precise frequency control
• Compact surface-mount footprint suitable for automated assembly

Crystals Applications

• Industrial communication systems requiring stable clock signals
• Microcontroller baseband processing circuits
• Embedded sensor interface modules

Crystals Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature range (-40°C to +85°C) distinct from commercial variants. Confirm that the 18pF load capacitance matches the target circuit design requirements. Ensure the 4-SMD package dimensions align with the PCB land pattern specifications before finalizing procurement orders.

Crystals Selection Notes

Select this component when an industrial temperature range is mandatory for the application environment. The 27 MHz frequency is standard for various serial communication interfaces. Designers must ensure the oscillator circuit provides the correct load capacitance to maintain the specified ±30ppm tolerance within the operational temperature limits.

Crystals Part Context

This part belongs to the CTS 405 series of surface-mount crystals. The 'I' designation specifically denotes the industrial temperature extension compared to standard commercial grade parts in the same physical package family. It shares dimensional compatibility with other 405 series variants while offering enhanced thermal performance.

Crystals Replacement Considerations

• 405C35D27M00000

Crystals FAQ

What is the difference between 405I33D27M00000 and 405C35D27M00000?

The primary difference is the temperature range; the 'I' variant supports -40°C to +85°C, while the 'C' variant typically supports -20°C to +70°C.

Does this crystal support fundamental or overtone mode?

The 405I33D27M00000 operates in fundamental mode as specified in its technical documentation.