Alternatives to STMicroelectronics LM319N
STMicroelectronics LM319N and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM319NSTMicroelectronics |  LM319N/NOPBTexas Instruments |  LM319DTSTMicroelectronics | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both utilize the exact same standard 14-DIP pinout configuration with matching input, output, ground, and supply pins.Both are housed in a through-hole 14-pin dual in-line plastic package (PDIP/DIP-14) with identical physical dimensions.Features the same dual high-speed comparator architecture with comparable open-collector/open-emitter outputs and speed specs. | Requires transitioning from a through-hole 14-DIP land pattern to a surface-mount 14-SOIC footprint.Physically a surface-mount device (SOIC-14) instead of a through-hole DIP-14.Functions as a dual high-speed comparator with the exact same silicon-level electrical characteristics as the original. | ||
 AI Summary | LM319N by STMicroelectronics: Comparator Standard (General Purpose) Open-Collector, Open-Emitter, TTL 14-DIP. | The LM319N/NOPB is the direct industry-standard second-source replacement from Texas Instruments. It offers identical pin connections and electrical performance, making it a seamless drop-in on existing through-hole boards.
| This is the surface-mount SO-14 version from the original manufacturer, STMicroelectronics. It is an active part that uses the exact same internal design, serving as an ideal migration path if a surface-mount redesign is possible.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Non-stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Comparator Standard (General Purpose) Open-Collector, Open-Emitter, TTL 14-DIP | Comparator Standard (General Purpose) DTL, Open-Collector, Open-Emitter, RTL, TTL 14-PDIP | Comparator Standard (General Purpose) Open-Collector, Open-Emitter, TTL 14-SO | |
| Manufacturer | STMicroelectronics | Texas Instruments | STMicroelectronics | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 13 weeks | 9 weeks | 30 weeks | |
| Country of Origin | MY | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0060 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Standard (General Purpose) | - | - | |
| Output Type | Open-Collector, Open-Emitter, TTL | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | 14-DIP (0.300", 7.62mm) | - | - | |
| Number of Elements | 2 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Supplier Device Package | 14-DIP | - | - | |
| Current - Quiescent (Max) | 12.5mA | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM339Nonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM393ANonsemi | Non-stock | Obsolete | 6Alternatives availableSee Alternatives |
 LM311Monsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM317Tonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| LM324Nonsemi | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 LM393Donsemi | In stock | Active | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The STMicroelectronics LM319N 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 LM319N are the LM319N/NOPB (Texas Instruments) and the LM319DT (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 LM319N 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 LM319N (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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