CSM1Z-A5B2C5-50-20.0D18

Crystals Overview

The CSM1Z-A5B2C5-50-20.0D18 is a fundamental series quartz crystal manufactured by Cardinal Components Inc. It operates at a nominal frequency of 20 MHz with a frequency tolerance of ±20 ppm and stability of ±50 ppm. The component features an equivalent series resistance (ESR) of 50 Ohms and a load capacitance of 18 pF. Designed for surface mount applications, it utilizes the HC-49/US package format with dimensions of 11.60mm x 4.70mm and a maximum height of 4.30mm. It supports a wide operating temperature range from -10°C to +60°C.

Crystals Feature Summary

• Fundamental series quartz crystal design
• Surface mount installation in HC-49/US package
• Wide operating temperature capability

Crystals Applications

• Communication equipment
• Automotive electronics
• Medical devices
• Wireless Bluetooth modules

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure alignment with required frequency tolerance and stability specifications. Confirm that the HC-49/US surface mount footprint matches the target PCB layout. Check RoHS compliance status if restricted substances are a constraint for the final assembly.

Crystals Selection Notes

Select this component when a fundamental series crystal with 20 MHz operation is required in a compact surface mount form factor. Ensure the circuit design accommodates the 50 Ohm ESR and 18 pF load capacitance. Verify that the ±20 ppm tolerance meets the system's clock accuracy requirements within the specified -10°C to +60°C temperature range.

Crystals Part Context

This part belongs to the CSM1 series of ultra-miniature crystals from Cardinal Components. These components serve as smaller alternatives to standard through-hole packages, offering space-saving solutions for applications requiring tight tolerances over wide temperature ranges while maintaining reliable performance.

Crystals Replacement Considerations

CSM1Z-A0B2C3-50-20.0D18 is documented as a parameter-equivalent substitute. HCM4920000000ABJT by Citizen Finedevice Co Ltd is also listed as a parameter-equivalent alternative.