402F20412IKR

Crystals Overview

The CTS-Frequency Controls 402F20412IKR is a fundamental quartz crystal designed for surface mount applications. It operates at a nominal frequency of 20.48 MHz with a frequency tolerance of ±10 ppm and stability of ±20 ppm. The component features a load capacitance of 8 pF and an equivalent series resistance (ESR) of 100 Ohms maximum. It utilizes a hermetic ceramic package in a 4-SMD, no-lead configuration measuring 3.9mm x 2.0mm x 1.6mm. The device supports operation within a temperature range of -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Hermetic ceramic surface mount package ensuring environmental protection
• Fundamental mode quartz design for stable oscillation
• Sub-miniature footprint suitable for high-density PCB layouts
• Compliant with RoHS3 directives for lead-free manufacturing

Crystals Applications

• Wireless communications systems
• USB interface circuits
• Portable electronic equipment
• IoT and IIoT devices

Crystals Procurement Notes

Verify the specific suffix IKR against official CTS documentation to confirm the 8 pF load capacitance specification. Ensure that the selected variant matches the required operating temperature range and frequency stability parameters for the target application environment. Cross-reference the package dimensions and pin configuration with the mechanical drawing prior to integration into the design.

Crystals Selection Notes

Select this component when a 20.48 MHz reference signal is required with strict size constraints. The 8 pF load capacitance necessitates matching circuit design adjustments compared to standard 12 pF variants. Consider the hermetic seal for environments requiring enhanced moisture resistance. Confirm compatibility with automated pick-and-place processes due to the small SMD form factor.

Crystals Part Context

This part belongs to the CTS 402 Series, which offers sub-miniature surface mount crystals. The series provides fundamental frequency designs ranging from 16 MHz to 96 MHz. These components are engineered for applications demanding high Q factors and reliable performance in compact consumer and industrial electronics.

Crystals Replacement Considerations

Direct substitutes must match the 20.48 MHz frequency, 8 pF load capacitance, and 4-SMD package. Verify ESR limits and temperature ranges. Generic equivalents may require circuit re-tuning due to capacitance differences.