CSM4Z-A2B3C3-180-4.0D18

Crystals Overview

The CSM4Z-A2B3C3-180-4.0D18 is a parallel fundamental quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 4.0 MHz with a load capacitance of 18 pF and an equivalent series resistance (ESR) of 180 Ohms. The component features a frequency tolerance and stability of ±30 ppm. Designed for surface mount applications, it utilizes the HC-49S package configuration. The device supports a wide operating temperature range from -40°C to +85°C and complies with RoHS standards.

Crystals Feature Summary

• Surface mount construction in HC-49S package
• Fundamental parallel resonance operation mode
• Wide industrial temperature range capability
• Lead-free compliant manufacturing

Crystals Applications

• General purpose clock signal generation
• Microprocessor timing circuits
• Communication equipment oscillators
• Industrial control system interfaces

Crystals Procurement Notes

Verify the specific part number against official Cardinal Components documentation to ensure accuracy of the ESR value and package type. Confirm that the HC-49S footprint matches the target PCB design requirements. Check for any recent updates to the RoHS compliance status or environmental declarations directly from the manufacturer's current datasheets before finalizing procurement specifications.

Crystals Selection Notes

Select this component when a surface mount solution is required for low-frequency timing applications. The 180 Ohm ESR suits circuits with lower drive level requirements compared to standard through-hole variants. Ensure the design accommodates the physical dimensions of the HC-49S package and verifies compatibility with the specified 18 pF load capacitance for accurate frequency performance.

Crystals Part Context

This part belongs to the CSM4 series of low-profile surface mount crystals from Cardinal Components. The series offers various frequency and ESR options tailored for cost-effective mass production. The CSM4Z suffix indicates tape and reel packaging availability, facilitating automated assembly processes in high-volume manufacturing environments.

Crystals Replacement Considerations

Direct substitutes include other HC-49S surface mount crystals with matching 4.0 MHz frequency, 18 pF load capacitance, and similar ESR ratings. Verify pinout compatibility and thermal characteristics when cross-referencing with alternative manufacturers.