CSM1Z-A5B2C3-40-18.0D18

Crystals Overview

The CSM1Z-A5B2C3-40-18.0D18 is a parallel fundamental quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 18 MHz with a tolerance of ±30 ppm and stability of ±50 ppm. The component features an equivalent series resistance (ESR) of 40 Ohms, a load capacitance of 18 pF, and a drive level of 1000 µW. Designed for surface mount installation in the HC-49/US package, it measures 11.60 mm x 4.70 mm with a maximum height of 4.60 mm. It supports a temperature range of -20°C to +70°C and complies with RoHS standards.

Crystals Feature Summary

• Surface mount AT cut quartz crystal construction
• HC-49/US form factor for standard footprint integration
• Compliant with lead-free environmental regulations

Crystals Applications

• Microcontroller clock sources
• Communication equipment timing circuits
• Embedded system oscillators

Crystals Procurement Notes

Verify the specific operating temperature range and frequency tolerance against the official datasheet before procurement. Confirm that the HC-49/US package dimensions align with the target PCB layout constraints. Ensure the drive level specification matches the oscillator circuit design to prevent over-driving the crystal element.

Crystals Selection Notes

Select this component when a standard surface mount crystal with moderate stability requirements is needed. The 40 Ohm ESR and 18 pF load capacitance are suitable for common microcontroller interfaces. Consider the -20°C to +70°C range for general commercial applications rather than harsh industrial environments.

Crystals Part Context

This part belongs to the CSM1 series of low-profile surface mount crystals from Cardinal Components Inc. The series utilizes AT cut technology for stable frequency performance. The Z suffix indicates tape and reel packaging, facilitating automated assembly processes.

Crystals Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include ABLS-27.000MHZ-B2F-T and ABLS-27.000MHZ-B4-FT from Abracon LLC, though these differ in frequency. Verify electrical compatibility for direct replacement.