Alternatives to Texas Instruments ULQ2003ADR
Texas Instruments ULQ2003ADR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Texas Instruments ULQ2003ADR
 ULQ2003ADRTexas Instruments |  ULQ2003ADR2Gonsemi |  ULQ2003D1013TRSTMicroelectronics | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the same SOIC-16 package with identical pinout assignments.Matches the 3.90mm body width SOIC-16 package dimensions.Identical 50V, 500mA per channel ratings and electrical characteristics. | Standard SOIC-16 footprint and identical pin configurations.Identical 3.90mm package width and mechanical dimensions.Fully matches the 50V, 500mA Darlington driver specifications. | ||
 AI Summary | ULQ2003ADR by Texas Instruments: Bipolar (BJT) Transistor Array Surface Mount 16-SOIC. | This is an active, exact second-source drop-in replacement from onsemi. It shares identical electrical specifications, pinout configurations, temperature ratings, and package dimensions with the obsolete TI part.
| The ULQ2003D1013TR is a direct, active equivalent from STMicroelectronics. It offers full pinout and parametric compatibility, serving as a seamless drop-in replacement.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 ULQ2003ADRG4Texas Instruments | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| ULN2003ADTexas Instruments | Non-stock | Obsolete | 6Alternatives availableSee Alternatives |
| ULN2004ADRTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
 LM2903DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
 LM2903DGKRTexas Instruments | In stock | Active | 6Alternatives availableSee Alternatives |
 LM293ADTexas Instruments | In stock | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments ULQ2003ADR 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 ULQ2003ADR are the ULQ2003ADR2G (onsemi) and the ULQ2003D1013TR (STMicroelectronics), out of 5 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 ULQ2003ADR 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 ULQ2003ADR (Texas Instruments) is a part in the Transistors category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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