445C33E25M00000

Crystals Overview

The CTS-Frequency Controls 445C33E25M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 25.0000 MHz. It features a load capacitance of 18 pF and a frequency tolerance of ±30 ppm. The device exhibits an equivalent series resistance (ESR) of 40 Ohms and supports a base harmonic mode. Designed for industrial applications, it operates within a temperature range of -20°C to +70°C. The component utilizes a 2-SMD, no-lead package with dimensions of 5.00 mm in length, 3.20 mm in width, and a maximum height of 1.35 mm.

Crystals Feature Summary

• Provides precise timing signals via fundamental mode quartz resonance
• Supports surface-mount integration with standardized leadless packaging
• Maintains stable oscillation characteristics across defined industrial thermal ranges

Crystals Applications

• Industrial control system clock references
• Embedded microcontroller timing circuits
• Communication module synchronization

Crystals Procurement Notes

Verify the specific suffix codes against official CTS documentation to confirm exact electrical tolerances and temperature ratings. Ensure the selected variant matches the required load capacitance and ESR specifications for the target circuit design. Cross-reference the manufacturer datasheet to validate compliance with RoHS standards and moisture sensitivity levels prior to procurement.

Crystals Selection Notes

Select this component when a 25 MHz fundamental frequency with ±30 ppm stability is required for industrial environments. Confirm that the 18 pF load capacitance aligns with the oscillator circuit's parasitic requirements. Evaluate the 40 Ohm ESR limit against the driving circuit capabilities to ensure reliable startup and sustained operation without excessive power consumption or frequency drift.

Crystals Part Context

This part belongs to the CTS 445 Series, which comprises glass-sealed surface-mount crystals designed for robust performance. The series offers various frequency options and package sizes tailored for compact electronic designs. These components are engineered to meet automotive and industrial reliability standards, providing consistent timing solutions for mass-produced consumer and professional electronics.

Crystals Replacement Considerations

Consult official substitution lists for direct equivalents from CTS or other manufacturers. Verify that any replacement maintains identical frequency, load capacitance, ESR, and physical footprint dimensions to ensure compatibility with existing PCB layouts and circuit parameters.