445W32S27M00000

Crystals Overview

The CTS-Frequency Controls 445W32S27M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 27 MHz. It features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm over the specified temperature range. The component is designed for a load capacitance of 18 pF and exhibits an equivalent series resistance (ESR) of 40 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 5.00 mm in length, 3.20 mm in width, and a maximum seated height of 1.35 mm. The device supports a maximum drive level of 100 µW and operates within a temperature range of 0°C to +50°C.

Crystals Feature Summary

• Glass-sealed construction for enhanced environmental protection and long-term reliability
• Fundamental mode operation ensuring stable oscillation characteristics
• Surface-mount design compatible with automated assembly processes

Crystals Applications

• Clock generation for microcontrollers and digital logic circuits
• Frequency reference sources for communication modules
• Timing components in consumer electronic devices

Crystals Procurement Notes

Verify the specific suffix codes against the official CTS datasheet to confirm exact electrical parameters such as load capacitance and tolerance before procurement. Ensure that the selected variant matches the required operating temperature range and package dimensions for the target PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and lead times, as standard delivery periods may vary.

Crystals Selection Notes

Select this component when a 27 MHz fundamental frequency crystal with ±30 ppm tolerance is required for surface-mount applications. Consider the 40 Ohm ESR and 100 µW drive level limits to ensure compatibility with the oscillator circuit design. Verify that the 0°C to +50°C operating range meets the environmental requirements of the end application. Compare the 5x3.2 mm footprint against available board space constraints.

Crystals Part Context

This component belongs to the 445 Series of glass-sealed crystals manufactured by CTS-Frequency Controls. The series is characterized by robust construction suitable for general-purpose timing applications. The 445W32S27M00000 specifically denotes a 27 MHz unit with defined tolerance and packaging attributes within this product line, distinguishing it from other frequencies or package styles in the same family.

Crystals Replacement Considerations

• 445I32C27M00000
• 445A22C27M00000