CSM4Z-A2B3C3-40-16.0D18

Crystals Overview

The CSM4Z-A2B3C3-40-16.0D18 is a parallel fundamental quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 16 MHz with a frequency tolerance and stability of ±30 ppm. The component features an equivalent series resistance (ESR) of 40 Ohms and a load capacitance of 18 pF. Designed for surface mount installation, it utilizes the HC-49/US package format. Physical dimensions are specified as 11.60 mm in length, 4.70 mm in width, and a maximum height of 3.50 mm. The device supports a base harmonic operating mode and functions within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Surface mount construction utilizing the HC-49/US package profile
• AT-cut quartz resonator design for stable oscillation
• Compliant with RoHS3 and REACH environmental standards

Crystals Applications

• Microcontroller clock generation circuits
• Communication equipment timing references
• Consumer electronics oscillator modules

Crystals Procurement Notes

Verify the specific package variant against the datasheet, as HC-49/US typically denotes through-hole but this model specifies surface mount. Confirm the ESR value of 40 Ohms matches circuit requirements. Ensure the 18 pF load capacitance aligns with the host oscillator design. Check for tape and reel availability if automated assembly is required.

Crystals Selection Notes

Select this component when a 16 MHz reference with ±30 ppm stability is required in a low-profile surface mount form factor. The 40 Ohm ESR suits standard oscillator circuits. Consider the -40°C to +85°C operating range for industrial or automotive environments. Verify compatibility with the target PCB footprint for the HC-49/US SMD variant.

Crystals Part Context

This part belongs to the CSM4 series of low-profile surface mount crystals from Cardinal Components. The series offers various frequency options and stability grades. The CSM4Z suffix indicates specific packaging or feature variations within the lineup. These components serve as passive frequency control elements in electronic systems requiring precise timing signals.

Crystals Replacement Considerations

Direct substitutes include other 16 MHz SMD crystals with 18 pF load capacitance and similar ESR values. Verify mechanical footprint compatibility before substitution. Alternative packages may require schematic and layout modifications.