402F271XXCDT

Crystals Overview

The 402F271XXCDT is a surface-mount fundamental mode crystal unit manufactured by CTS-Frequency Controls. It operates at a nominal frequency of 27.12 MHz with a frequency tolerance and stability of ±15ppm. The component features an 18pF load capacitance and a maximum equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.00mm x 1.60mm x 0.55mm. The device is rated for operation within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental oscillation mode for stable frequency generation
• Surface-mount design compatible with automated assembly processes
• RoHS compliant construction meeting environmental standards

Crystals Applications

• Clock signal generation in microcontroller circuits
• Timing references for communication interfaces
• Frequency control in consumer electronic devices

Crystals Procurement Notes

Verify the specific suffix codes against the manufacturer's current product documentation to ensure compatibility with design requirements. Confirm that the lead-free status and RoHS compliance meet regulatory standards for the target market. Check for any obsolescence notices or lifecycle changes directly from CTS-Frequency Controls before finalizing procurement plans.

Crystals Selection Notes

Select this component when a 27.12 MHz reference with ±15ppm stability is required in a compact surface-mount form factor. Ensure the application circuit supports the 18pF load capacitance specification. Consider the 100 Ohm ESR limit for oscillator drive level constraints. Verify that the -20°C to +70°C operating range covers the intended environmental conditions.

Crystals Part Context

This part belongs to the CTS 402 Series of thin-film crystals designed for high-volume surface-mount applications. The series offers various frequencies and package sizes optimized for cost-effective manufacturing. The 402F271XXCDT specifically addresses needs for precise timing in space-constrained portable electronics and industrial control modules requiring reliable fundamental mode operation.

Crystals Replacement Considerations

Direct substitutes must match the 27.12 MHz frequency, 18pF load capacitance, and 4-SMD no-lead package dimensions. Verify equivalent ESR limits and temperature ranges. Cross-reference with other manufacturers offering pin-compatible SMD crystals if supply chain diversification is required.