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LMX393AUA

LMX393AUA Dual Comparator, Tiny-Pack, Active

MPNLMX393AUA
End of Life

National Semiconductor LMX393AUA, dual tiny-pack comparator, active lifecycle, RoHS non-compliant, Bulk package.

$0.52Ref. price · indicative, final on quote
Analog Devices LMX393AUA datasheet (PDF)
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMX393AUA specifications
ParameterValue
Series*
PackageBulk

Product details

Typical applications include threshold detection, zero-crossing detectors, and window comparators in power supplies, motor drives, and industrial control boards where you need two comparators side by side without doubling the footprint.

Active lifecycle — no LTB clock ticking

If your BOM needs to meet RoHS directives (EU, China, etc.), this part won't pass without an exemption. For legacy designs or military/aerospace builds where leaded solder is still permitted or exempted, it's a straightforward drop-in. No second-source alternate is listed in the available records, so dual-sourcing would require qualification of a functionally equivalent comparator from another vendor.

What the ratings mean for your BOM

The supply voltage range is not listed in the available specs. Verify against the full datasheet.

Frequently asked questions

What are the differences between LMX393AUA and LM393?

The LMX393AUA is a tiny-pack variant of the classic LM393 dual comparator. The core comparator function is the same — two independent comparators with open-collector outputs — but the LMX393AUA comes in a smaller footprint package, saving board area at the expense of slightly tighter layout constraints. The LM393 is typically available in larger packages like SOIC-8 or DIP-8, which are easier to hand-solder and route on a two-layer board.

Is LMX393AUA RoHS compliant?

No, the LMX393AUA is marked as RoHS non-compliant. It contains lead and cannot be used in products requiring RoHS compliance unless an exemption applies. For RoHS-required builds, look for a lead-free comparator alternative.