445W3XB14M31818

Crystals Overview

The CTS-Frequency Controls 445W3XB14M31818 is a surface-mount quartz crystal oscillator operating at a fundamental frequency of 14.31818 MHz. It belongs to the 445 series and features a standard 5 mm x 3.2 mm SMD package with a height of 1.35 mm. The component offers a frequency tolerance of ±30 ppm and an equivalent series resistance (ESR) of 50 Ohms maximum. It is designed for operation within a temperature range of 0°C to +50°C. The device supports a load capacitance configuration, typically 16 pF or 20 pF depending on specific suffix variations, and operates at a drive level of 100 µW.

Crystals Feature Summary

• Provides stable timing signals at 14.31818 MHz with ±30 ppm tolerance
• Compact 5 mm x 3.2 mm surface-mount footprint for automated assembly
• Low equivalent series resistance of 50 Ohms for efficient circuit integration
• Operates reliably within commercial temperature ranges from 0°C to +50°C

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing circuits
• Consumer electronic devices

Crystals Procurement Notes

Verify the exact middle character in the model number (e.g., E, S, C, L) as it dictates the specific load capacitance value required by the host circuit design. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the selected variant matches the PCB footprint dimensions of 5.0 mm by 3.2 mm to guarantee proper solder joint formation during surface mount reflow processes.

Crystals Selection Notes

Select this component when a precise 14.31818 MHz reference is required for digital systems. Choose based on the specific load capacitance needed by the oscillator circuit, which varies by the third character in the part number. Consider the 0°C to +50°C operating range suitability for commercial applications. Verify that the 100 µW drive level is compatible with the target microcontroller or oscillator input specifications to prevent overdriving the crystal.

Crystals Part Context

This part belongs to the CTS 445 series of surface-mount crystals, widely used in general-purpose electronics. The 14.31818 MHz frequency is a standard choice for generating video pixel clocks and serial communication baud rates due to its divisibility properties. The series offers various load capacitance options to accommodate different circuit designs while maintaining a consistent physical footprint and electrical performance profile across the family.

Crystals Replacement Considerations

Direct substitutes include other CTS 445 series variants with identical 14.31818 MHz frequency and 5x3.2mm package, such as 445W31C14M31818 or 445W33C14M31818, provided the load capacitance requirements match. Cross-manufacturer replacements must verify identical frequency, tolerance, ESR, and physical dimensions.