AB-17.734475MHZ-B4

Crystals Overview

The Abracon AB-17.734475MHZ-B4 is a fundamental mode crystal unit designed for surface and through-hole mounting applications. It operates at a standard frequency of 17.734475 MHz with a tolerance of ±30 ppm and stability of ±100 ppm. The component utilizes an HC-49/U package, featuring two pins and a load capacitance of 18 pF. It exhibits a series resistance of 25 Ohms and functions within a temperature range of -20°C to +70°C. This device complies with RoHS standards and is suitable for general-purpose timing circuits requiring precise frequency generation.

Crystals Feature Summary

• Fundamental mode operation ensures stable frequency generation for microprocessor and communication systems.
• HC-49/U package provides robust mechanical structure for reliable through-hole integration.
• Compliant with RoHS directives for environmentally safe manufacturing.

Crystals Applications

• Microprocessor clock circuits
• Communication equipment timing references
• General-purpose oscillator designs

Crystals Procurement Notes

Verify the exact part number suffix against official Abracon documentation to confirm package type and electrical specifications. Ensure compatibility with existing circuit load capacitance requirements. Check for updated datasheets regarding any revisions in frequency stability or temperature coefficients. Confirm RoHS compliance status if required by specific regulatory standards. Validate supplier authorization to guarantee genuine component sourcing.

Crystals Selection Notes

Select this component when a fundamental mode crystal with HC-49/U packaging is required. Consider the 18 pF load capacitance for circuit design matching. Evaluate the ±100 ppm stability against system timing accuracy needs. Assess the -20°C to +70°C operating range for environmental suitability. Compare series resistance values with driver circuit capabilities.

Crystals Part Context

This crystal belongs to Abracon's general-purpose crystal lineup, utilizing the widely adopted HC-49/U form factor. It serves as a basic timing element for various electronic assemblies. The part is distinct from Abracon's surface-mount ABLS series, offering different mechanical integration options. It represents a standard solution for legacy and modern through-hole designs requiring precise frequency control.

Crystals Replacement Considerations

Cross-reference with other HC-49/U crystals from manufacturers like Epson or NDK. Verify identical frequency, load capacitance, and package dimensions before substitution. Ensure equivalent stability and tolerance ratings are maintained. Check for pin compatibility and mounting hole alignment. Review thermal characteristics for similar operational ranges.