402F4001XIKR

Crystals Overview

The CTS-Frequency Controls 402F4001XIKR is a surface-mount MHz crystal operating at a fundamental frequency of 40 MHz. It features a load capacitance of 8 pF and an equivalent series resistance (ESR) of 60 Ohms. The component offers a frequency stability and tolerance of ±15 ppm and ±10 ppm, respectively. Housed in a 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm and a maximum seated height of 0.55mm, it supports an operating temperature range of -20°C to 70°C.

Crystals Feature Summary

• Fundamental mode operation for precise timing applications
• Surface mount design compatible with automated assembly processes
• RoHS3 compliant construction for environmental standards

Crystals Applications

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

Crystals Procurement Notes

Verify the specific suffix 'KR' against the manufacturer's official datasheet to confirm exact frequency tolerance and packaging specifications. Ensure compatibility with the target circuit's load capacitance requirements before integration. Check current availability status as components may be subject to supply chain fluctuations or discontinuation notices from the manufacturer.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency with 8 pF load capacitance is required for surface-mount designs. Consider the ±10 ppm tolerance and 60 Ohm ESR for oscillator circuit compatibility. Evaluate the -20°C to 70°C operating range against environmental conditions. Compare physical dimensions against PCB footprint constraints to ensure proper placement and soldering.

Crystals Part Context

This part belongs to the CTS 402 series of surface-mount crystals. The series provides various frequency options in compact packages suitable for space-constrained electronics. The 402F4001XIKR specifically addresses the need for stable 40 MHz timing references in modern digital systems requiring small form factors and reliable performance.

Crystals Replacement Considerations

Consult the official CTS Frequency Controls cross-reference guide for verified substitutes. Alternative parts must match the 40 MHz frequency, 8 pF load capacitance, and 4-SMD package dimensions. Verify that any replacement maintains the same ESR and tolerance specifications to ensure circuit functionality.