405C11A40M00000

Crystals Overview

The CTS-Frequency Controls part number 405C11A40M00000 is a surface-mount MHz crystal designed for precise frequency control. It operates at a fundamental frequency of 40.0000 MHz with a load capacitance of 10 pF and an equivalent series resistance (ESR) of 50 Ohms. The component offers high frequency stability of ±10 ppm and a frequency tolerance of ±10 ppm. It utilizes a 4-SMD, No Lead package measuring 5.00 mm in length and 3.20 mm in width, with a maximum height of 0.85 mm. The device supports a wide operating temperature range from -20°C to +70°C and is RoHS compliant.

Crystals Feature Summary

• Fundamental mode operation ensures stable frequency generation without overtone complexities.
• Compact surface-mount footprint facilitates automated assembly and space-constrained designs.
• High frequency stability allows for reliable timing performance across varying environmental conditions.

Crystals Applications

• Precision timing circuits requiring fundamental resonance
• Embedded systems with limited board space
• Consumer electronics utilizing surface-mount technology

Crystals Procurement Notes

Verify the specific package dimensions and electrical parameters against the official CTS datasheet before integration. Confirm that the load capacitance requirements of the target oscillator circuit align with the 10 pF specification to ensure accurate frequency output. Check for RoHS compliance status if required by project regulations.

Crystals Selection Notes

Select this component when a fundamental mode crystal is preferred over overtone types for simpler circuit design. The 40 MHz frequency suits applications needing standard clock speeds. Ensure the PCB layout accommodates the 5.00 x 3.20 mm SMD footprint and verify thermal constraints within the -20°C to +70°C operational range.

Crystals Part Context

This crystal belongs to the 405 Series from CTS-Frequency Controls, which specializes in miniature surface-mount crystals. The series is characterized by small form factors suitable for modern electronic assemblies. It serves as a core frequency reference component, distinct from oscillators or resonators, providing the necessary piezoelectric element for external oscillator circuits.

Crystals Replacement Considerations

Direct substitutes include ATS40A-E and ATS400B from CTS-Frequency Controls. Alternative similar parts are 403C11A14M40000 and 403C11J14M40000. Cross-reference package dimensions and electrical specs before substitution.

Crystals FAQ

What is the harmonic mode of operation for this crystal?

The 405C11A40M00000 operates in fundamental mode, unlike some higher-frequency crystals that require third or fifth overtone modes.

Does this component support disable functionality?

No, this is a passive crystal component. Disable functionality is a feature found in active XO oscillators, not in standalone crystals like this one.