Alternatives to STMicroelectronics LM311D
STMicroelectronics LM311D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM311DSTMicroelectronics | LM311DTSTMicroelectronics | LM311DTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Identical 8-pin assignments and footprint, confirmed via the shared STMicroelectronics datasheet.Standard SO-8 package with matching dimensional drawings.Identical electrical specifications, current ratings, and 0°C to 70°C operating range. | Pin-for-pin compatible with standard LM311 SOIC-8 assignments.Standard SOIC-8 package dimensions match perfectly.Matches all core electrical specifications, with a slightly wider minimum supply range (3.5V vs 5V). | ||
 AI Summary | LM311D by STMicroelectronics: Comparator Standard (General Purpose) DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL 8-SOIC. | The LM311DT is the Tape & Reel packaging variant of the queried LM311D. It is a 100% direct drop-in replacement from STMicroelectronics with identical physical, electrical, and thermal specifications.
| The Texas Instruments LM311D is an industry-standard, direct second-source equivalent for the STMicroelectronics part. It offers full pin-to-pin compatibility and matching general-purpose comparator characteristics in the same Tube packaging.
| |
| 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) DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL 8-SOIC | Comparator Standard (General Purpose) DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL 8-SOIC | Comparator Standard (General Purpose) MOS, Open-Collector, Open-Emitter, TTL 8-SOIC | |
| Manufacturer | STMicroelectronics | STMicroelectronics | Texas Instruments | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 30 weeks | 30 weeks | 9 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 | DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - | |
| Number of Elements | 1 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Current - Output (Typ) | 50mA | - | - | |
| Supplier Device Package | 8-SOIC | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM311Monsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM317Tonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| LM324Donsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM393Donsemi | In stock | Active | 6Alternatives availableSee Alternatives |
 LM319NSTMicroelectronics | Non-stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM339DSTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The STMicroelectronics LM311D 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 STMicroelectronics LM311D are the LM311DT (STMicroelectronics) and the LM311D (Texas Instruments), out of 5 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 LM311D 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 LM311D (STMicroelectronics) 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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