Alternatives to onsemi LM393D
onsemi LM393D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM393Donsemi |  LM393DRTexas Instruments |  LM393DR2Gonsemi | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Both devices use the standard 8-pin SOIC footprint with identical pin assignments (verified via pinout extraction).Both devices share the same physical 8-SOIC (3.90mm width) dimensions and surface-mount style.All key electrical parameters (supply voltage range, output drive, and response times) match or exceed the original STMicroelectronics specifications. | Pins 1 through 8 map to the exact same comparator outputs, inputs, and power rails as the STMicroelectronics LM393D.Housed in the identical 8-SOIC (0.154 inch, 3.90mm width) footprint.Maintains the same electrical baseline, including 2.5mA maximum supply current and general-purpose performance specs. | ||
 AI Summary | LM393D by onsemi: Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC. | This is a direct, industry-standard second-source replacement from Texas Instruments. It offers identical electrical parameters, package dimensions, and pin configurations, making it a highly reliable drop-in alternative.
| The LM393DR2G from onsemi is an industry-standard dual comparator that mirrors the STMicroelectronics device in form, fit, and function. It provides a reliable alternative from an established major manufacturer.
| |
| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC | Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC | Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC | |
| Manufacturer | onsemi | Texas Instruments | onsemi | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 30 weeks | 16 weeks | 13 weeks | |
| Country of Origin | MA | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Standard (General Purpose) | - | - | |
| Output Type | Open-Collector, Rail-to-Rail | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - | |
| Number of Elements | 2 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Current - Output (Typ) | 18mA @ 5V | - | - | |
| Supplier Device Package | 8-SOIC | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM393DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
 LM339DSTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM393MTexas Instruments | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 LM339DGonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 LM393ANonsemi | Non-stock | Obsolete | 6Alternatives availableSee Alternatives |
| LM339DRROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi LM393D is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the onsemi LM393D are the LM393DR (Texas Instruments) and the LM393DR2G (onsemi), out of 6 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 LM393D 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 LM393D (onsemi) 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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