405C35D27M00000

Crystals Overview

The CTS-Frequency Controls 405C35D27M00000 is a surface-mount fundamental mode crystal resonator operating at 27 MHz. It features an 18 pF load capacitance and ±30 ppm frequency tolerance, with stability rated at ±50 ppm. The component exhibits an equivalent series resistance of 50 Ohms and operates within a temperature range of -20°C to +70°C. Packaged in a compact 4-SMD, no-lead form factor measuring 5.00mm x 3.20mm with a maximum height of 0.85mm, it supports automated assembly processes.

Crystals Feature Summary

• Fundamental oscillation mode for stable frequency generation
• Surface-mount design optimized for automated PCB assembly
• RoHS3 compliant construction supporting environmental standards

Crystals Applications

• Digital communication systems requiring precise clock signals
• Microcontroller oscillator circuits
• Consumer electronics timing references

Crystals Procurement Notes

Verify the specific ordering suffix against official documentation to ensure correct packaging configuration, as variations exist between tape-and-reel, cut tape, and Digi-Reel formats. Confirm that the selected variant matches the required frequency tolerance and load capacitance specifications for the target circuit design prior to procurement.

Crystals Selection Notes

Select this component when a 27 MHz fundamental mode crystal is required for surface-mount applications. Ensure the circuit design accommodates the specified 18 pF load capacitance and 50 Ohm ESR. Verify that the operational temperature range of -20°C to +70°C aligns with the environmental requirements of the final product application.

Crystals Part Context

This part belongs to the 405 Series of SMD crystals from CTS-Frequency Controls. It shares the same footprint dimensions as other variants in the series but differs in electrical parameters such as frequency tolerance and ESR. The 405 Series provides standardized mounting options for high-volume manufacturing environments.

Crystals Replacement Considerations

ECS-270-20-30B-TR by ECS Inc. is documented as a similar substitute part number.