Alternatives to onsemi MC74HC03ADR2
onsemi MC74HC03ADR2 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
| MC74HC03ADR2onsemi |  MC74HC03ADR2Gonsemi |  SN74HC03DRTexas Instruments | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the identical SOIC-14 footprint and standard pinout layout.Same physical package dimensions and mounting type (SOIC-14, SMD).Direct upgrade to the lead-free (RoHS compliant) version with identical electrical performance. | Matches the standard SOIC-14 footprint and pin assignments perfectly.Interchangeable SOIC-14 package dimensions and SMD mounting style.Features a narrower operating temperature range of -40°C to +85°C compared to the original's -55°C to +125°C. | ||
 AI Summary | MC74HC03ADR2 by onsemi: Logic Gates 2-6V Quad 2-Input. | This is the direct, Pb-free (RoHS compliant) replacement from the original manufacturer. It shares the identical silicon design, pinout, and full industrial temperature range of -55°C to +125°C, making it a seamless drop-in transition.
| This is a highly reliable alternative from Texas Instruments that functions as a direct pin-to-pin drop-in replacement in the same SOIC-14 footprint. Note that it offers a narrower industrial operating temperature range of -40°C to +85°C, which must be verified against your system requirements.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Logic Gates 2-6V Quad 2-Input | NAND Gate IC 4 Channel Open Drain 14-SOIC | NAND Gate IC 4 Channel Open Drain 14-SOIC | |
| Manufacturer | onsemi | onsemi | Texas Instruments | |
| Type | Logic Gates | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 12 weeks | 31 weeks | 9 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542390090 | - | - | |
| Moisture Sensitivity Level | - | - | - |
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Frequently asked questions
Yes. The onsemi MC74HC03ADR2 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 onsemi MC74HC03ADR2 are the MC74HC03ADR2G (onsemi) and the SN74HC03DR (Texas Instruments), out of 3 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 MC74HC03ADR2 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 MC74HC03ADR2 (onsemi) is a part in the Logic Gates category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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