402F271XXCJR

Crystals Overview

The CTS-Frequency Controls 402F271XXCJR is a fundamental mode quartz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 27.12 MHz with a frequency tolerance and stability of ±15 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.00 mm in length, 1.60 mm in width, and a maximum height of 0.55 mm. The device supports operation within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental mode quartz crystal resonator providing stable frequency generation
• Compact 4-SMD no-lead surface-mount package suitable for automated assembly
• Designed for base harmonic operation with specified load capacitance requirements

Crystals Applications

• General-purpose clock signal generation in electronic circuits
• Microcontroller and processor system timing references
• Communication module frequency standards

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical parameters such as load capacitance and frequency tolerance. Ensure the selected variant matches the required operating temperature range and package dimensions for the target PCB layout. Cross-reference the part number with the latest product documentation to avoid discrepancies between different manufacturing revisions or regional specifications.

Crystals Selection Notes

Select this component when a fundamental mode crystal with 9 pF load capacitance is required for 27.12 MHz applications. Consider the 100 Ohm ESR limit when designing the oscillator circuit to ensure reliable startup. Verify that the ±15 ppm stability meets the system timing accuracy requirements. Confirm compatibility with the intended surface-mount reflow soldering profile and thermal constraints during installation.

Crystals Part Context

This component belongs to the CTS 402 series of surface-mount crystals. The series offers various frequency options and package sizes optimized for high-volume manufacturing. The 402F271XXCJR specifically addresses the need for standard 27.12 MHz timing in compact consumer and industrial electronics where space constraints and cost-effectiveness are primary design drivers.

Crystals Replacement Considerations

Direct substitutes include other 402 series variants with identical mechanical dimensions and similar electrical characteristics. Verify that any replacement maintains the 9 pF load capacitance and 100 Ohm ESR limits. Check for equivalent frequency tolerance and temperature range compliance before integration.