CAA-4.000-18-3050-X-R

Crystals Overview

The CAA-4.000-18-3050-X-R is a surface-mount quartz crystal manufactured by Aker Technology Corp, belonging to the CAA series. It operates at a standard frequency of 4 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The component features an 18 pF load capacitance and a series resistance of 120 Ohms. Designed for robust performance, it supports an operating temperature range from -40°C to +85°C. The physical package is HC-49, measuring 13.5 mm in length, 4.8 mm in width, and 4.6 mm in height, utilizing two pins for surface mounting.

Crystals Feature Summary

• Surface-mount construction within HC-49 package format
• Operational capability across extended industrial temperature ranges
• Compliance with RoHS standards for environmental safety

Crystals Applications

• General-purpose clock signal generation
• Microcontroller timing circuits
• Digital communication interfaces

Crystals Procurement Notes

Verify that the specific suffix 'X-R' aligns with required reel packaging specifications if automated assembly is utilized. Confirm that the 120 Ohm series resistance matches the oscillator circuit design requirements. Ensure the HC-49 footprint dimensions are compatible with the target PCB layout constraints before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 4 MHz reference is required for surface-mount applications. The 18 pF load capacitance must match the external circuit loading. Consider the ±30 ppm tolerance for precision timing needs. The wide temperature range suits environments subject to thermal variation without requiring specialized military-grade variants.

Crystals Part Context

This part belongs to the CAA series of crystals from Aker Technology Corp. It shares the HC-49 form factor with other models like CAA-16.000-18-3050-X but differs in frequency and series resistance. The series provides standardized surface-mount solutions for various frequency requirements while maintaining consistent physical dimensions.

Crystals Replacement Considerations

Direct substitutes include CAA-4.000-18-3050-X. Verify compatibility regarding series resistance values and load capacitance specifications when evaluating alternative frequencies or manufacturers.