AB-19.6608MHZ-B2

Crystals Overview

The AB-19.6608MHZ-B2 is a through-hole quartz crystal manufactured by Abracon LLC, operating at a nominal frequency of 19.6608 MHz. It features a frequency tolerance of ±20 ppm and a frequency stability of ±100 ppm across the specified temperature range. The component utilizes an HC-49/U package with a lead spacing of 4.88 mm and requires a load capacitance of 18 pF. Electrical characteristics include an equivalent series resistance (ESR) of 25 Ohms. The device supports fundamental mode operation and functions within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Through-hole mounting configuration in standard HC-49/U package
• Fundamental mode quartz crystal operation
• Defined frequency tolerance and stability specifications

Crystals Applications

• General-purpose clock signal generation
• Microcontroller oscillator circuits
• Industrial control systems

Crystals Procurement Notes

Verify the specific frequency stability requirement against the datasheet value of ±100 ppm, as this differs from tighter tolerance variants. Confirm that the 25 Ohm ESR aligns with the circuit design constraints. Ensure the through-hole HC-49/U footprint matches the PCB layout requirements before ordering.

Crystals Selection Notes

Select this component when a standard through-hole crystal is required for 19.6608 MHz applications. Consider the ±100 ppm stability limit; if higher precision is needed, evaluate surface-mount alternatives like the ABM8 series. Verify that the 18 pF load capacitance matches the host system's oscillator circuit design.

Crystals Part Context

This part belongs to Abracon's general-purpose crystal lineup, utilizing the widely adopted HC-49/U form factor. It serves as a cost-effective timing solution for applications where board space is less constrained than in modern surface-mount designs. The model represents a standard industrial-grade component suitable for basic timing needs.

Crystals Replacement Considerations

Direct replacements may include other manufacturers' HC-49/U crystals with identical 19.6608 MHz frequency, 18 pF load capacitance, and compatible ESR values. Cross-reference electrical parameters such as tolerance and stability to ensure functional equivalence.