402F400XXCLR

Crystals Overview

The CTS-Frequency Controls 402F400XXCLR is a fundamental mode quartz crystal resonator operating at a nominal frequency of 40 MHz. It features a load capacitance of 12 pF and offers a frequency tolerance and stability of ±15 ppm. The component exhibits an equivalent series resistance (ESR) of 60 Ohms and utilizes a 4-SMD, No Lead surface-mount package with dimensions of 2.00mm x 1.60mm.

Crystals Feature Summary

• Fundamental mode quartz crystal operation for stable frequency generation
• Surface-mount design compatible with automated assembly processes
• High frequency stability suitable for precision timing applications

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific suffix requirements against the manufacturer's official datasheet to ensure compatibility with target load capacitance and tolerance specifications. Confirm that the 4-SMD No Lead package dimensions align with PCB footprint constraints. Check current availability status as electronic components may undergo lifecycle changes or discontinuation notices from CTS-Frequency Controls.

Crystals Selection Notes

Select this component when a 40 MHz fundamental resonance with ±15 ppm stability is required. Ensure the circuit design supports a 12 pF load capacitance to maintain accurate frequency performance. Consider the 60 Ohm ESR value for oscillator circuit gain margin calculations. Verify that the operating temperature range meets the application's environmental requirements.

Crystals Part Context

This part belongs to the 402 Series of SMD crystals from CTS-Frequency Controls. The series provides various frequency options in compact surface-mount packages. The 402F400XXCLR specifically addresses high-frequency needs where small form factor and moderate stability are prioritized over ultra-high precision or wide temperature ranges found in other series.

Crystals Replacement Considerations

Direct substitutes must match the 40 MHz frequency, 12 pF load capacitance, ±15 ppm tolerance, and 4-SMD No Lead package. Verify ESR compatibility and mounting dimensions. Cross-reference with CTS internal cross-reference guides for equivalent parts within the same manufacturing line.