CAA-40.000-18-3050-R

Crystals Overview

The CAA-40.000-18-3050-R is a parallel fundamental quartz crystal manufactured by Aker Technology Corp, designed for surface-mount applications. It operates at a nominal frequency of 40 MHz with an initial frequency tolerance of ±20 ppm and a load capacitance of 18 pF. The component features a maximum equivalent series resistance (ESR) of 80 ohms and a drive level of 100 µW. It supports a standard temperature range of -10°C to +70°C and complies with RoHS standards.

Crystals Feature Summary

• Surface-mount design utilizing HC-49/US package configuration
• Parallel resonance mode operation for stable frequency generation
• Compliance with RoHS environmental directives

Crystals Applications

• General-purpose clock signal generation in electronic circuits
• Microcontroller system timing references
• Communication interface synchronization modules

Crystals Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging when sourcing. Confirm that the 80 ohm ESR specification aligns with the target oscillator circuit requirements. Ensure the -10°C to +70°C operating range meets the environmental constraints of the final assembly. Cross-reference the 18 pF load capacitance with the host circuit design parameters to guarantee accurate frequency performance.

Crystals Selection Notes

Select this component for applications requiring a 40 MHz surface-mount reference with moderate stability. The HC-49/US form factor allows for automated placement while maintaining robust mechanical characteristics. Consider the 80 ohm ESR limit when designing the oscillator feedback network to ensure reliable startup conditions. This part is suitable for consumer electronics where standard temperature ranges are sufficient.

Crystals Part Context

This model belongs to the CAA series of parallel fundamental crystals from Aker Technology Corp. It represents a standard surface-mount solution replacing traditional through-hole variants. The designation encodes the 40 MHz frequency, 18 pF load, and specific tolerance grades. It serves as a direct replacement for legacy HC-49/U components in modern PCB layouts requiring reduced footprint.

Crystals Replacement Considerations

Direct substitutes include other 40 MHz SMD crystals with matching 18 pF load capacitance and similar ESR limits. Verify pin compatibility and physical dimensions if swapping packages. Ensure alternative parts meet the same RoHS compliance and temperature range specifications.