Alternatives to ROHM Semiconductor LM339PT
ROHM Semiconductor LM339PT and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM339PTROHM Semiconductor |  LM339PTSTMicroelectronics |  LM339PWRTexas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The part features the exact same industry-standard quad comparator pinout in a 14-TSSOP package, allowing for a seamless drop-in on the existing PCB layout.Uses the same 14-TSSOP footprint with identical package dimensions (4.4mm width, 0.65mm pitch).Matches or exceeds the key electrical parameters of Rohm's device, featuring general-purpose open-collector outputs and low quiescent current. | Shares the exact standard 14-pin pinout configuration as the Rohm part.Identical TSSOP-14 physical package dimensions and SMD footprint.Operates across compatible voltage ranges (up to 30 V) with open-collector outputs. | ||
 AI Summary | LM339PT by ROHM Semiconductor: Comparator Standard (General Purpose) CMOS, MOS, Open-Collector, TTL 14-TSSOP. | This is a direct, same-MPN replacement from STMicroelectronics that serves as an industry-standard second source. It is currently active, highly available, and physically/electrically identical to the obsolete Rohm device.
| Texas Instruments' industry-standard version provides a highly stable alternative with excellent manufacturing longevity. It is fully pin-compatible and matches all critical electrical specs.
| |
| 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) CMOS, MOS, Open-Collector, TTL 14-TSSOP | Comparator Standard (General Purpose) CMOS, DTL, ECL, MOS, Open-Collector, TTL 14-TSSOP | Comparator Standard (General Purpose) Open-Collector 14-TSSOP | |
| Manufacturer | ROHM Semiconductor | STMicroelectronics | Texas Instruments | |
| Type | Linear | Linear | Linear | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 weeks | 30 weeks | 9 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 | CMOS, MOS, Open-Collector, TTL | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | - | - | |
| Number of Elements | 4 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Current - Output (Typ) | 16mA @ 5V | - | - | |
| Supplier Device Package | 14-TSSOP | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM339PWRTexas Instruments | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 LM339Nonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM339DSTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM337TTexas Instruments | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 LM339DGonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 LM339DRROHM Semiconductor | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The ROHM Semiconductor LM339PT 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 ROHM Semiconductor LM339PT are the LM339PT (STMicroelectronics) and the LM339PWR (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 LM339PT 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 LM339PT (ROHM Semiconductor) 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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