402F270XXCAR

Crystals Overview

The CTS-Frequency Controls 402F270XXCAR is a surface-mount quartz crystal resonator operating at a nominal frequency of 27 MHz. It features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 100 Ohms. The component supports fundamental mode operation with a frequency tolerance of ±10 ppm and stability of ±15 ppm. Packaged in a compact 4-SMD, No Lead form factor measuring 2.00mm x 1.60mm x 0.55mm maximum height, it is designed for reliable performance within an operating temperature range of -40°C to +85°C.

Crystals Feature Summary

• Compact 4-SMD surface-mount package suitable for automated assembly processes
• Fundamental mode resonance ensuring stable oscillation characteristics
• Wide industrial temperature rating for diverse environmental conditions

Crystals Applications

• Wireless communication modules requiring precise clock signals
• Microcontroller system clock generation circuits
• RF transmitter and receiver frequency references

Crystals Procurement Notes

Verify the specific suffix configuration against the official CTS datasheet to ensure compatibility with target circuit load capacitance requirements. Confirm that the selected variant meets the necessary frequency tolerance and ESR specifications for the application. Cross-reference the package dimensions with PCB footprint libraries to guarantee accurate placement during manufacturing.

Crystals Selection Notes

Select this component when a 27 MHz reference with 10 pF load capacitance is required for space-constrained designs. Ensure the operating environment stays within the specified -40°C to +85°C range. Compare ESR values against oscillator circuit drive levels to prevent frequency pulling or failure to start. Validate that the SMD package aligns with available assembly equipment capabilities.

Crystals Part Context

This part belongs to the 402 Series of crystals from CTS-Frequency Controls, which are characterized by small footprints and high reliability. The series is engineered for general-purpose timing applications where size reduction and consistent electrical performance are prioritized over ultra-high precision stability found in oven-controlled variants.

Crystals Replacement Considerations

Substitutes such as the 402F2701XIAR offer similar 27 MHz performance but may differ in physical dimensions or specific tolerance grades. Verify pinout compatibility and thermal characteristics before swapping components to maintain board integrity.