445C23C20M00000

Crystals Overview

The CTS-Frequency Controls 445C23C20M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 20 MHz. It features a frequency tolerance of ±20 ppm and a frequency stability of ±30 ppm over the specified temperature range. The component is designed for a load capacitance of 16 pF with an equivalent series resistance (ESR) of 40 Ohms maximum. It operates within a temperature range of -20°C to +70°C and utilizes a 2-SMD, no-lead package measuring 5.00 mm in length, 3.20 mm in width, and 1.35 mm in height.

Crystals Feature Summary

• Glass-sealed construction for environmental protection
• Fundamental mode operation for stable frequency generation
• Surface-mount design compatible with automated assembly

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic synchronization

Crystals Procurement Notes

Verify the specific load capacitance requirement of the target oscillator circuit matches the 16 pF specification to ensure accurate frequency performance. Confirm that the operating environment remains within the -20°C to +70°C range defined by the datasheet. Ensure PCB layout adheres to surface-mount guidelines for the 5.00 x 3.20 mm footprint to maintain mechanical integrity and electrical reliability during soldering processes.

Crystals Selection Notes

Select this component when a 20 MHz fundamental frequency with ±20 ppm initial tolerance is required for cost-sensitive applications. The 16 pF load capacitance aligns with common microcontroller oscillator configurations. Consider the 40 Ohm ESR limit against the driving capability of the host circuit to prevent over-driving or failure to oscillate. The standard industrial temperature range suits most general electronic equipment.

Crystals Part Context

This part belongs to the CTS 445 series of glass-sealed crystals, which are designed for high reliability in surface-mount applications. The series offers various frequency and load capacitance options within a standardized 5.00 x 3.20 mm package. These components are widely used in consumer electronics and industrial control systems where stable timing references are critical for system synchronization.

Crystals Replacement Considerations

Direct substitutes within the same series include 445C23B20M00000 and 445C23D20M00000, which share identical dimensions and mounting characteristics but may differ in specific tolerance or stability ratings. Verify that any replacement part maintains the 16 pF load capacitance and 20 MHz frequency to ensure circuit compatibility.