CSM1Z-A5B2C5-150-4.0D18

Crystals Overview

The CSM1Z-A5B2C5-150-4.0D18 is a surface mount parallel fundamental quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 4.0 MHz with a frequency tolerance of ±20 ppm and a load capacitance of 18 pF. The component features an equivalent series resistance (ESR) of 150 Ohms and utilizes the HC-49/US package format. It supports a drive level of 1 mW and exhibits a frequency stability of ±50 ppm over an operating temperature range of -20°C to +70°C.

Crystals Feature Summary

• Surface mount parallel fundamental quartz crystal design
• HC-49/US package configuration for compact integration
• AT cut crystal construction for stable oscillation

Crystals Applications

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

Crystals Procurement Notes

Verify that the specific order matches the required electrical parameters, particularly the 150 Ohm ESR and 18 pF load capacitance, as these values are critical for oscillator circuit stability. Confirm the package type aligns with the PCB footprint requirements. Ensure compliance with RoHS standards if environmental regulations apply to the final assembly process.

Crystals Selection Notes

Select this component when a standard HC-49/US form factor is required in a surface mount layout. The 4.0 MHz frequency and ±20 ppm tolerance suit applications needing moderate precision timing. Consider the 150 Ohm ESR value to ensure compatibility with the driving gate impedance of the target microcontroller or oscillator circuit without requiring additional external components.

Crystals Part Context

This part belongs to the CSM1 series of low-profile surface mount crystals from Cardinal Components. The series offers various frequency options and package styles, including through-hole equivalents like the HC-49/US. The CSM1Z variant specifically denotes tape and reel packaging for automated assembly processes, distinguishing it from bulk pack alternatives within the same product family.

Crystals Replacement Considerations

Abracon ABLS-27.000MHZ-B2F-T is listed as a parameter equivalent alternative in public distributor records, though frequency differences exist. Verify exact electrical matching before substitution.