Alternatives to Texas Instruments TMP121AIDBVT
Texas Instruments TMP121AIDBVT and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 TMP121AIDBVTTexas Instruments |  TMP121AIDBVRTexas Instruments | TMP127EDBVRQ1Texas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the identical SOT-23-6 package and pin assignments as the queried part.Shares the exact same physical package dimensions and mounting style.Maintains identical 12-bit resolution, accuracy, SPI protocol, and electrical limits. | Pin assignments are completely different and require board traces to be routed differently.Shares the exact same physical SOT-23-6 footprint size.Fully meets and exceeds all performance specs, utilizing the same SPI communication style. | ||
 AI Summary | TMP121AIDBVT by Texas Instruments: Temperature Sensor Digital, Local -40°C ~ 125°C 12 b SOT-23-6. | This is the direct factory-recommended sibling variant of the queried part. It is identical in design, performance, and pinout, differing only in the tape-and-reel packaging quantity (3,000 units instead of 250 units).
| This is a modern, high-precision automotive alternative within the same SOT-23-6 footprint. It provides significantly upgraded resolution and thermal performance, but requires rerouting of the SPI pin connections.
| |
| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | Discontinued | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | Temperature Sensor Digital, Local -40°C ~ 125°C 12 b SOT-23-6 | Temperature Sensor Digital, Local -40°C ~ 125°C 12 b SOT-23-6 | This is a modern, high-precision automotive alternative within the same SOT-23-6 footprint. It provides significantly upgraded resolution an | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Temperature Sensors | Temperature Sensors | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 6 weeks | 16 weeks | Unknown | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 2 (1 Year) | - | - | |
| Features | Shutdown Mode | - | - | |
| Resolution | 12 b | - | - | |
| Output Type | SPI | - | - | |
| Sensor Type | Digital, Local | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | SOT-23-6 | - | - | |
| Test Condition | -25°C ~ 85°C (-40°C ~ 125°C) | - | - | |
| Voltage - Supply | 2.7V ~ 5.5V | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 TMP117AIDRVTTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 TMP275AIDGKTTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments TMP121AIDBVT 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 TMP121AIDBVT are the TMP121AIDBVR (Texas Instruments) and the TMP127EDBVRQ1 (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 TMP121AIDBVT 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 TMP121AIDBVT (Texas Instruments) is a part in the Temperature Sensors category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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