AS-4.194304MAHE-B

Crystals Overview

The AS-4.194304MAHE-B is a parallel fundamental quartz crystal manufactured by TXC Corporation, designed for precision timing applications. It operates at a nominal frequency of 4.194304 MHz with a load capacitance of 12 pF. The component meets AEC-Q202 automotive qualification standards, ensuring reliability in demanding environments. It features a frequency stability and tolerance of ±30 ppm across an operating temperature range of -40°C to +85°C. The unit utilizes an HC-49/US package, providing a robust physical form factor suitable for through-hole mounting in various electronic circuits requiring stable clock signals.

Crystals Feature Summary

• AEC-Q202 automotive grade qualification for enhanced reliability
• Parallel fundamental resonance mode operation
• HC-49/US through-hole package construction

Crystals Applications

• Automotive electronic control units
• Precision timing circuits in harsh environments
• Microcontroller clock sources

Crystals Procurement Notes

Verify the specific ordering suffix against official TXC documentation to ensure compliance with required stability and temperature specifications. Confirm that the HC-49/US package dimensions align with the target PCB layout constraints. Ensure the selected variant meets the necessary AEC-Q202 certification requirements for the intended application environment.

Crystals Selection Notes

Select this component when a precise 4.194304 MHz reference is required for automotive or industrial systems. The ±30 ppm stability suits applications sensitive to frequency drift over temperature variations. Consider the 12 pF load capacitance requirement to ensure accurate oscillator circuit design and proper frequency matching within the system.

Crystals Part Context

This part belongs to TXC's line of standard quartz crystals, specifically tailored for timing applications. The HC-49/US series is widely recognized for its durability and consistent performance. This model represents a specialized variant optimized for automotive standards, distinguishing it from general-purpose industrial crystals through its rigorous qualification testing.

Crystals Replacement Considerations

Direct substitutes must match the 4.194304 MHz frequency, 12 pF load capacitance, and HC-49/US package. Verify equivalent AEC-Q202 certification if automotive use is required. Cross-reference manufacturer datasheets to confirm identical electrical characteristics and thermal ranges before integration.