405C35B40M00000

Crystals Overview

The CTS-Frequency Controls 405C35B40M00000 is a fundamental mode quartz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 40 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The component features a load capacitance of 13 pF and an equivalent series resistance (ESR) of 50 Ohms. Housed in a compact 4-SMD, No Lead package measuring 5.00mm x 3.20mm with a maximum height of 0.85mm, it supports operation within a temperature range of -20°C to +70°C. This device is RoHS3 compliant and classified under MSL Level 1.

Crystals Feature Summary

• Fundamental mode quartz crystal operation for precise timing control
• Surface-mount design compatible with automated assembly processes
• Compliant with RoHS3 environmental standards

Crystals Applications

• Microcontroller clock sources
• Communication interface circuits
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific suffix 'B' indicates the 13pF load capacitance variant against circuit requirements. Confirm that the -20°C to +70°C operating range aligns with the target application environment. Ensure the 4-SMD footprint matches the PCB land pattern dimensions of 5.00mm x 3.20mm. Cross-reference the ESR value of 50 Ohms with oscillator drive level specifications to prevent over-driving the crystal.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency is required with tight initial tolerance. The 13pF load capacitance must match the oscillator circuit design exactly. Consider the physical dimensions if space constraints are critical. Verify thermal performance requirements fall within the specified commercial temperature range. Check compatibility with standard reflow soldering profiles for SMD packages.

Crystals Part Context

This part belongs to the CTS 405 Series of surface-mount crystals. It shares the same mechanical outline as other variants in the series but differs in electrical parameters such as load capacitance and frequency. The 'B' suffix specifically denotes the 13pF load capacitance configuration, distinguishing it from other load options available in the product line.

Crystals Replacement Considerations

The 405I35B40M00000 is listed as a direct substitute by the manufacturer. Verify that any alternative components maintain identical frequency, load capacitance, and ESR values to ensure circuit compatibility.