9C04000042

Crystals Overview

The TXC Corporation 9C04000042 is a surface-mount crystal oscillator operating at a fundamental frequency of 4.0000 MHz. It utilizes an HC-49/US package format designed for SMD/SMT mounting applications. The component specifies a load capacitance of 18 pF, ensuring compatibility with standard circuit designs requiring this capacitive value. It is classified under the product category of crystals and supports automated assembly processes due to its surface-mount configuration.

Crystals Feature Summary

• Surface-mount design compatible with automated pick-and-place manufacturing equipment
• Fundamental frequency operation at 4.0000 MHz for precise timing reference
• HC-49/US package form factor providing standardized footprint dimensions

Crystals Applications

• General-purpose digital clock signal generation
• Microcontroller system timing references
• Communication interface synchronization circuits

Crystals Procurement Notes

Verify the specific electrical tolerances and stability ratings against your application requirements before procurement. Confirm that the 18 pF load capacitance matches your circuit design specifications. Ensure the HC-49/US package dimensions fit within your PCB layout constraints. Check for RoHS compliance status if required by your regulatory standards. Validate the manufacturer's datasheet for any updates regarding pin configurations or recommended soldering profiles.

Crystals Selection Notes

Select this component when a 4 MHz surface-mount crystal is required for cost-sensitive designs. The HC-49/US package offers a balance between size and performance for through-hole legacy footprints adapted for SMD. Consider the 18 pF load capacitance requirement carefully to avoid frequency deviation in the final circuit. Evaluate the available frequency tolerance options if higher precision is needed for your specific application environment.

Crystals Part Context

This part belongs to the broader family of surface-mount crystals manufactured by TXC Corporation. It shares the HC-49/US mechanical outline with other variants in the series but differs in frequency and load capacitance specifications. The 9C series typically denotes standard frequency crystals suitable for general electronic applications. This model provides a direct replacement for older through-hole HC-49/U components where SMD assembly is preferred.

Crystals Replacement Considerations

Direct replacements must match the 4.0000 MHz frequency, 18 pF load capacitance, and HC-49/US package. Verify equivalent parts from other manufacturers have identical electrical characteristics and thermal properties. Ensure substitute components meet the same quality and reliability standards as the original TXC part.