Alternatives to STMicroelectronics LM339D
STMicroelectronics LM339D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM339DSTMicroelectronics |  LM339DR2Gonsemi |  LM339DRTexas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the exact same SOIC-14 package footprint and physical pinout arrangement.Matches the standard 14-pin SOIC dimensions and mounting style (SMD).Functionally identical with matching operating voltage (up to 36V) and same temperature range (0°C to 70°C). | Fully pin-compatible in the standard SOIC-14 layout.Identical SOIC-14 body dimensions and SMD mounting.Matches all primary comparator characteristics and 0°C to 70°C temperature range. | ||
 AI Summary | LM339D by STMicroelectronics: Comparator Standard (General Purpose) Open-Collector 14-SO. | This is the direct modern, RoHS-compliant active replacement for the obsolete LM339D from onsemi. It offers the exact same electrical performance and footprint, supplied in Tape & Reel packaging.
| An industry-standard second-source replacement from Texas Instruments. It provides full functional and mechanical compatibility for drop-in replacement on existing PCB designs.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Comparator Standard (General Purpose) Open-Collector 14-SO | Comparator Standard (General Purpose) CMOS, Open-Collector, TTL 14-SOIC | Comparator Standard (General Purpose) Open-Collector 14-SOIC | |
| Manufacturer | STMicroelectronics | onsemi | Texas Instruments | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 days | 13 weeks | 16 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0001 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Type | Standard (General Purpose) | - | - | |
| Output Type | Open-Collector | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | - | - | |
| Number of Elements | 4 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Current - Output (Typ) | 16mA @ 5V | - | - | |
| Supplier Device Package | 14-SO | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM339DGonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 LM339DRROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 LM339Nonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM393Donsemi | In stock | Active | 6Alternatives availableSee Alternatives |
 LM339PTROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| LM393DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The STMicroelectronics LM339D is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the STMicroelectronics LM339D are the LM339DR2G (onsemi) and the LM339DR (Texas Instruments), 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 LM339D 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 LM339D (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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