403I35D28M63636

Crystals Overview

The 403I35D28M63636 is a fundamental mode crystal unit manufactured by CTS-Frequency Controls. It operates at a nominal frequency of 28.63636 MHz with a frequency tolerance of ±30 ppm and a load capacitance of 18 pF. The equivalent series resistance (ESR) is specified at 60 Ohms. This component utilizes a 4-SMD, No Lead package with dimensions of 3.20mm x 2.50mm and a maximum height of 0.75mm. It supports surface mount installation and functions within an operating temperature range of -40°C to +85°C.

Crystals Feature Summary

• Fundamental resonance mode operation for precise timing applications
• Compact 4-SMD no-lead surface mount package design
• Wide industrial operating temperature range capability

Crystals Applications

• Clock signal generation in digital circuits
• Microcontroller system oscillators
• Communication interface timing sources

Crystals Procurement Notes

Verify the specific suffix 'D' against official CTS documentation to confirm the exact load capacitance and tolerance specifications. Ensure the selected variant matches the required 18pF load capacitance and ±30ppm stability for the target circuit design. Cross-reference the package dimensions with PCB footprint libraries to guarantee mechanical compatibility during assembly.

Crystals Selection Notes

Select this component when a 28.63636 MHz fundamental frequency is required with ±30ppm stability. Consider the 18pF load capacitance requirement for oscillator circuit tuning. Evaluate the 4-SMD no-lead package for space-constrained surface mount designs. Verify that the -40°C to +85°C temperature range meets the environmental requirements of the end application.

Crystals Part Context

This part belongs to the CTS 403 series of surface mount crystals. The series offers various frequencies and package sizes for general-purpose timing applications. The 403I35D28M63636 specifically targets applications requiring the 28.63636 MHz frequency, commonly used in telecommunications and high-speed data interfaces.

Crystals Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.