405C11A18M43200

Crystals Overview

The CTS-Frequency Controls 405C11A18M43200 is a surface-mount MHz crystal designed for precise frequency control. It operates at a nominal frequency of 18.432 MHz with a fundamental working mode. The component features a load capacitance of 10pF and an equivalent series resistance (ESR) of 60 Ohms. Frequency stability and tolerance are both specified at ±10ppm. It utilizes a 4-SMD, No Lead package with dimensions of 5.00mm x 3.20mm and a maximum height of 0.85mm. The device supports an operating temperature range of -20°C to +70°C and complies with RoHS3 standards.

Crystals Feature Summary

• Provides stable oscillation at 18.432 MHz with high precision
• Compact surface-mount design suitable for automated assembly
• Fundamental mode operation ensures reliable frequency generation

Crystals Applications

• Clock signal generation in microprocessor systems
• Timing references for communication interfaces
• Frequency control in consumer electronic devices

Crystals Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure compatibility with specific circuit requirements. Confirm that the load capacitance and ESR values match the oscillator circuit design. Check for any recent product change notices or environmental compliance updates from CTS-Frequency Controls prior to finalizing procurement decisions.

Crystals Selection Notes

Select this component when a 18.432 MHz reference is required with tight frequency stability. Ensure the application environment falls within the specified temperature range. Verify that the PCB footprint matches the 4-SMD no-lead package dimensions. Consider the ESR value when designing the load capacitors for the oscillator circuit to ensure proper startup and stability.

Crystals Part Context

This crystal belongs to the 405 series from CTS-Frequency Controls, which offers various standard frequencies in compact SMD packages. The 405 series is widely used in applications requiring reliable timing sources. This specific model provides a common clock frequency used in digital systems and data communications.

Crystals Replacement Considerations

Direct substitutes may include other 18.432 MHz crystals with identical electrical parameters and package dimensions. Verify compatibility with existing oscillator circuits before substitution.