402F20012IDT

Crystals Overview

The CTS-Frequency Controls 402F20012IDT is a surface-mount MHz crystal designed for fundamental operation mode. It operates at a nominal frequency of 20 MHz with a frequency tolerance of ±10ppm and stability of ±20ppm. The component features a load capacitance of 18pF 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 a wide operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

Crystals Feature Summary

• Fundamental oscillation mode for stable frequency generation
• Compact 4-SMD no-lead surface mount packaging
• Wide industrial temperature rating for diverse environments

Crystals Applications

• General purpose clock signal generation in digital circuits
• Microcontroller and microprocessor system timing references
• Communication interface synchronization modules

Crystals Procurement Notes

Verify the specific datasheet version for the 402F20012IDT to confirm current manufacturing status and parameter tolerances. Cross-reference the ESR value of 100 Ohms against circuit design requirements to ensure proper oscillator startup conditions. Confirm that the 18pF load capacitance matches the host circuit's external capacitor configuration. Check for any recent supply chain updates or obsolescence notices from CTS-Frequency Controls prior to finalizing procurement plans.

Crystals Selection Notes

Select this component when a 20 MHz fundamental mode crystal is required in a compact 2.00mm x 1.60mm footprint. Ensure the application environment remains within the specified -40°C to +85°C operational range. Verify that the target oscillator circuit can support the 100 Ohm ESR specification. Consider the ±10ppm initial tolerance if precise frequency accuracy is critical for the system timing requirements.

Crystals Part Context

This part belongs to the CTS 402 Series of surface-mount crystals, which are characterized by their small form factor and reliability. The series is widely used in consumer electronics and industrial equipment where space constraints limit the use of larger through-hole components. The 402F20012IDT specifically addresses the need for standard 20 MHz timing in modern PCB layouts.

Crystals Replacement Considerations

Publicly documented substitute part numbers include 416F40012IDR and 402F40012IDR from CTS-Frequency Controls. These alternatives may offer different frequencies or packaging variants but should be evaluated for electrical compatibility. Verify pinout and mechanical dimensions before substituting to ensure board layout compatibility.