Alternatives to Texas Instruments LM339PWR
Texas Instruments LM339PWR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM339PWRTexas Instruments |  LM339PWRTexas Instruments |  LM339PTSTMicroelectronics | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Verified identical physical 14-TSSOP pinout configuration where Pin 1 is Output 1/2 and GND is Pin 12.Matches the 14-TSSOP package style (0.173 in, 4.40 mm width) and SMD mounting method.The maximum supply voltage is 30V (vs 36V on original) and quiescent current is slightly higher at 2.5mA max (vs 2.0mA max). | Matches the standard LM339 quad comparator pinout exactly with identical physical assignments.Identical 14-TSSOP package dimensions and surface-mount footprint.Maximum supply voltage is limited to 32V (vs 36V original) and max quiescent current is 2.5mA (vs 2.0mA original). | ||
 AI Summary | LM339PWR by Texas Instruments: Comparator Standard (General Purpose) Open-Collector 14-TSSOP. | This is the most direct second-source alternative from Texas Instruments, featuring active lifecycle status and identical package and footprint specifications. While it has a slightly lower maximum supply voltage ceiling, it serves as a true drop-in replacement in almost all low-voltage and 5V/12V designs.
| The STMicroelectronics LM339PT is an active, highly reliable quad comparator that directly swaps onto the same TSSOP-14 landing pad. It is electrically compatible with a slightly lower maximum voltage ceiling, making it a perfect fit for standard industrial and consumer circuits.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Comparator Standard (General Purpose) Open-Collector 14-TSSOP | Comparator Standard (General Purpose) Open-Collector 14-TSSOP | Comparator Standard (General Purpose) CMOS, DTL, ECL, MOS, Open-Collector, TTL 14-TSSOP | |
| Manufacturer | Texas Instruments | Texas Instruments | STMicroelectronics | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 weeks | 9 weeks | 30 weeks | |
| Country of Origin | - | - | - | |
| 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 | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | - | - | |
| Number of Elements | 4 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Supplier Device Package | 14-TSSOP | - | - | |
| Current - Quiescent (Max) | 2mA | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM339DRROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 LM339PTROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 LM339Nonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM339DSTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM339DGonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
| LM393DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments LM339PWR 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 Texas Instruments LM339PWR are the LM339PWR (Texas Instruments) and the LM339PT (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 LM339PWR 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 LM339PWR (Texas Instruments) 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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