402F20012IAT

Crystals Overview

The CTS-Frequency Controls 402F20012IAT is a fundamental mode MHz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 20 MHz with an initial frequency tolerance of ±10ppm and overall stability of ±20ppm. The component features a load capacitance of 10pF and an equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm and a maximum height of 0.55mm. The device supports operation across a temperature range of -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental mode operation ensures stable oscillation characteristics for precise timing applications.
• Compact 4-SMD no-lead footprint facilitates automated surface-mount assembly processes.
• Wide operating temperature range supports functionality in demanding environmental conditions.

Crystals Applications

• Clock generation circuits in microcontroller systems
• Timing references for communication interfaces
• Oscillator circuits in consumer electronic devices

Crystals Procurement Notes

Verify the specific suffix 'IAT' against manufacturer documentation to confirm packaging configuration and tape/reel specifications. Ensure compatibility with existing PCB land patterns for the 4-SMD no-lead form factor. Confirm that the 10pF load capacitance aligns with the host oscillator circuit design requirements before integration.

Crystals Selection Notes

Select this component when a 20 MHz fundamental crystal with tight initial tolerance is required. The 100 Ohm ESR value influences oscillator circuit gain margin; verify driver level constraints. The 10pF load capacitance must match the external capacitors in the Pierce oscillator configuration to maintain accurate frequency output.

Crystals Part Context

This part belongs to the 402 Series of SMD crystals from CTS-Frequency Controls. The series offers various frequencies and packages optimized for space-constrained designs. The 402F20012IAT specifically addresses needs for moderate precision timing in compact portable electronics where low profile and reliable surface mounting are prioritized.

Crystals Replacement Considerations

Direct substitutes within the same series include 402F20012IKR and 402F20012IAR. Verify that alternative suffixes match the required packaging quantity and reel specifications. Cross-reference electrical parameters such as ESR and load capacitance to ensure circuit compatibility.