445I32H25M00000

Crystals Overview

The CTS-Frequency Controls 445I32H25M00000 is a surface-mount fundamental mode crystal resonator operating at a nominal frequency of 25 MHz. It features a load capacitance of 32 pF and an equivalent series resistance (ESR) of 40 Ohms. The component offers a frequency tolerance of ±30 ppm and a stability of ±20 ppm. Designed for industrial applications, it operates within a temperature range of -40°C to +85°C. The device is housed in a compact 2-SMD, No Lead package with dimensions of 2.0 mm x 1.2 mm.

Crystals Feature Summary

• Fundamental mode operation for precise frequency generation
• Industrial-grade temperature range capability
• Compact surface-mount footprint for automated assembly

Crystals Applications

• Industrial control systems requiring stable clock signals
• Communication equipment baseband processing
• Microcontroller clock sources in harsh environments

Crystals Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature rating during procurement. Confirm that the 32 pF load capacitance matches the target circuit design requirements. Ensure compatibility with standard reflow soldering profiles for 2-SMD packages. Cross-reference the ESR value with oscillator driver strength specifications to prevent over-driving or failure to start.

Crystals Selection Notes

Select this component when a 25 MHz fundamental crystal is required for industrial temperature ranges. The 32 pF load capacitance suits circuits with higher stray capacitance compared to 18 pF variants. Consider the 40 Ohm ESR against available oscillator drive levels. The 2-SMD form factor is suitable for high-density PCB layouts where space is constrained but thermal performance remains critical.

Crystals Part Context

This part belongs to the 445 Series of SMD crystals from CTS-Frequency Controls. The series is characterized by small footprints and robust construction for surface-mount technology. The 'I' suffix typically denotes industrial temperature grading, distinguishing it from commercial grade counterparts. This series supports various frequencies and load capacitances within the same physical envelope.

Crystals Replacement Considerations

• 445A32H25M00000
• 445C32H25M00000

Crystals FAQ

What is the difference between 445I32H25M00000 and 445A32H25M00000?

The primary difference is the temperature range. The 'I' suffix indicates an industrial rating (-40°C to +85°C), while the 'A' suffix typically denotes a commercial rating (-20°C to +70°C).

Is this crystal suitable for high-frequency noise environments?

As a fundamental mode crystal, it provides stable frequency generation. However, specific shielding requirements depend on the application's electromagnetic interference levels and the oscillator circuit design.