CSM4Z-A2B3C3-40-12.0D18

Crystals Overview

The CSM4Z-A2B3C3-40-12.0D18 is a parallel fundamental quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 12.0 MHz with a load capacitance of 18 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a frequency stability and tolerance of ±30 ppm. Designed for surface mount installation, it utilizes the HC-49/US package format with physical dimensions of 11.60 mm in length, 4.70 mm in width, and a maximum height of 3.50 mm. It supports a wide operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Low profile surface mount design with a maximum height of 3.50 mm
• Parallel fundamental oscillation mode for stable timing
• Compliant with RoHS3 environmental standards

Crystals Applications

• General purpose digital circuit timing
• Microcontroller clock sources
• Communication interface synchronization

Crystals Procurement Notes

Verify the specific suffix D18 against the manufacturer's official datasheet to confirm tape and reel packaging specifications. Ensure the ESR value of 40 Ohms aligns with the oscillator circuit requirements. Cross-reference the HC-49/US footprint dimensions to validate PCB layout compatibility before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 12 MHz reference with ±30 ppm stability is required within a -40°C to +85°C environment. The 18 pF load capacitance must match the external capacitors in the host circuit. Consider the 40 Ohm ESR to ensure sufficient drive level compliance and avoid overdriving the crystal element during operation.

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 variant specifically denotes tape and reel packaging, distinguishing it from bulk pack alternatives within the same family.

Crystals Replacement Considerations

Direct substitutes must match the 12.0 MHz frequency, 18 pF load capacitance, 40 Ohm ESR, and HC-49/US SMD package. Verify that alternative components support the same ±30 ppm stability and -40°C to +85°C operating temperature range.