Alternatives to Analog Devices LT1039CN
Analog Devices LT1039CN and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LT1039CNAnalog Devices |  LT1039CN#PBFAnalog Devices |  LT1039ACN#PBFAnalog Devices | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The package is a standard 18-DIP with an identical 18-pin assignment for all transceiver, power, and shutdown pins.Matches the exact physical dimensions and THT mounting style of the original 18-DIP package.Functions as a direct electrical equivalent, offering the same 5V to 15V supply voltage, 3/3 drivers/receivers, and shutdown control. | Utilizes the same 18-DIP package with a one-to-one matched pin layout.Identical 18-pin through-hole DIP physical form factor.Meets or exceeds all electrical parameters, providing the same transceiver functionality while offering superior ESD protection. | ||
 AI Summary | LT1039CN by Analog Devices: RS-232 Interface IC LT1039 - RS232 Driver/Receiver with Shutdown. | The LT1039CN#PBF is the official lead-free RoHS-compliant direct drop-in replacement for the obsolete LT1039CN. It shares identical electrical specifications, pin assignments, and physical dimensions, ensuring seamless compatibility without board redesign.
| The LT1039ACN#PBF is an upgraded drop-in variant of the LT1039CN featuring enhanced ±15kV ESD protection. It maintains absolute pin and electrical compatibility, making it an excellent drop-in option that also improves system reliability.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | RS-232 Interface IC LT1039 - RS232 Driver/Receiver with Shutdown | 3/3 Transceiver Full RS232 18-DIP | 3/3 Transceiver Full RS232 18-DIP | |
| Manufacturer | Analog Devices | Analog Devices | Analog Devices | |
| Type | RS-232 Interface IC | Interface | Interface | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 11 weeks | 12 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542390090 | - | - | |
| Moisture Sensitivity Level | - | - | - |
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Related parts
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 LT1032CNAnalog Devices | Non-stock | Obsolete | 4Alternatives availableSee Alternatives |
 LT1019ACN8-4.5Analog Devices | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
| LT1021BCN8-5Analog Devices | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
| LT1027ECN8-5Analog Devices | Non-stock | Obsolete | 7Alternatives availableSee Alternatives |
 LT1097S8Analog Devices | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| LT1021BCN8-10Analog Devices | Non-stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Analog Devices LT1039CN 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 Analog Devices LT1039CN are the LT1039CN#PBF (Analog Devices) and the LT1039ACN#PBF (Analog Devices), 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 LT1039CN 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 LT1039CN (Analog Devices) is a part in the RS-232 Interface IC category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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