AS-4.000MAHK-B

Crystals Overview

The AS-4.000MAHK-B is a through-hole quartz crystal unit manufactured by TXC Corporation, designed for precise timing applications at 4.0000 MHz. It features a frequency stability of ±30 ppm and an equivalent series resistance (ESR) of 150 Ohms. The component utilizes a HC-49/US package with a load capacitance of 20 pF. This crystal is AEC-Q200 certified, ensuring reliability for automotive environments. It operates within a standard temperature range and supports surface mounting via traditional through-hole techniques.

Crystals Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Through-hole HC-49/US package design
• Stable 4 MHz oscillation with low ESR

Crystals Applications

• Automotive electronic control units
• Microcontroller clock sources
• Communication interface circuits

Crystals Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm package dimensions and lead configuration. Ensure the load capacitance matches the target circuit requirements. Confirm RoHS compliance status for current production versions. Check for end-of-life notifications as availability may vary. Validate that the AEC-Q200 certification is required for the intended application environment.

Crystals Selection Notes

Select this component when a robust through-hole crystal is needed for automotive or industrial systems. The HC-49/US form factor allows for easy manual assembly or wave soldering. Consider the 20 pF load capacitance compatibility with the oscillator circuit. The ±30 ppm stability is suitable for general timing needs rather than high-precision references.

Crystals Part Context

This part belongs to the AS series of crystals from TXC Corporation, which focuses on standard frequency components. The AS series is widely used in consumer and industrial electronics. The HC-49/US package is a legacy but reliable format for through-hole mounting. It serves as a fundamental timing element in various digital logic circuits.

Crystals Replacement Considerations

Direct substitutes include AS-4.000MDHK-B and AT-4.000MDHC-T from the same manufacturer. These alternatives share similar electrical characteristics but may differ in packaging quantity or reel specifications. Verify pin compatibility before substitution.