Alternatives to onsemi MM74HC4051MX
onsemi MM74HC4051MX and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 MM74HC4051MXonsemi |  MC74HC4051ADR2Gonsemi |  CD74HC4051M96Texas Instruments | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Identical 16-SOIC package footprint and pin assignment mapping.Matches the standard 16-SOIC (0.154 inch / 3.90 mm width) package dimensions.Identical electrical operating parameters, including dual supply (±2V to 6V) and 100 Ohm max on-resistance. | Identical 16-SOIC footprint and pin assignment mapping.Matches the standard 16-SOIC (0.154 inch / 3.90 mm width) package dimensions.Meets or exceeds all performance requirements, though dual supply is slightly shifted at ±1V to 5V (up to 10V total span). | ||
 AI Summary | MM74HC4051MX by onsemi: 1 Circuit IC Switch 8:1 100Ohm 16-SOIC. | This is a direct, active drop-in replacement from onsemi (which acquired Fairchild). It features an identical 16-SOIC footprint, pin assignment, and matches the original electrical parameters such as 100 Ohm max on-resistance, with a wider operating temperature range.
| This is a highly reliable drop-in alternative from Texas Instruments in the identical 16-SOIC package. It offers a significantly improved -3dB bandwidth (180 MHz vs. 35 MHz) and a wider temperature range, making it highly robust for signal routing.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Non-stock | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | 1 Circuit IC Switch 8:1 100Ohm 16-SOIC | 1 Circuit IC Switch 8:1 100Ohm 16-SOIC | 1 Circuit IC Switch 8:1 130Ohm 16-SOIC | |
| Manufacturer | onsemi | onsemi | Texas Instruments | |
| Type | Interface | Interface | Interface | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 days | 29 weeks | 9 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0001 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Crosstalk | -50dB @ 1MHz | - | - | |
| Mounting Type | Surface Mount | - | - | |
| -3db Bandwidth | 35MHz | - | - | |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | - | - | |
| Number of Circuits | 1 | - | - | |
| Operating Temperature | -40°C ~ 85°C (TA) | - | - | |
| Supplier Device Package | 16-SOIC | - | - | |
| On-State Resistance (Max) | 100Ohm | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 MM74HC04Nonsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 MM74HC688WMXonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 MM74HCT244WMonsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 MM74HCT573WMonsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi MM74HC4051MX 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 MM74HC4051MX are the MC74HC4051ADR2G (onsemi) and the CD74HC4051M96 (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 MM74HC4051MX 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 MM74HC4051MX (onsemi) is a part in the Interface category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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