Alternatives to ROHM Semiconductor LM393DR
ROHM Semiconductor LM393DR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for ROHM Semiconductor LM393DR
 LM393DRROHM Semiconductor |  LM393DRTexas Instruments |  LM393DTSTMicroelectronics | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The 8-SOIC package footprint and pin configuration match the original Rohm LM393DR exactly.The 3.90mm width 8-SOIC outline matches standard board land patterns and mechanical heights.Meets or exceeds all electrical ratings including the wide 2V to 36V supply range and quiescent currents. | The pin assignment is verified to be identical to the original Rohm dual comparator.Matches standard 8-SOIC package size (154 mil width) and mechanical characteristics.Equivalent 2V to 36V operating voltage, low supply currents, and comparable open-collector output levels. | ||
 AI Summary | LM393DR by ROHM Semiconductor: Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC. | This is a direct, active drop-in replacement from Texas Instruments that matches the exact physical footprints and pin assignments. It offers improved input offset voltage stability and higher typical output sink capabilities.
| The STMicroelectronics LM393DT is an active, industry-standard dual comparator. It offers equivalent electrical parameters with a slightly tighter input offset voltage tolerance.
| |
| Lifecycle Status | NRND | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM393Donsemi | In stock | Active | 6Alternatives availableSee Alternatives |
 LM339DRROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 LM393GOODWORK | In stock | Active | 5Alternatives availableSee Alternatives |
| LM2903DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
 LM393MTexas Instruments | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 LM293DTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
No. The ROHM Semiconductor LM393DR is marked not-recommended-for-new-designs (NRND): it is still supplied for existing production but the manufacturer discourages new sockets. The qualified alternatives here are better long-term choices for a new design.
The closest qualified second sources for the ROHM Semiconductor LM393DR are the LM393DR (Texas Instruments) and the LM393DT (STMicroelectronics), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the LM393DR are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The LM393DR (ROHM Semiconductor) is a part in the Linear category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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