Alternatives to Texas Instruments REF3125AIDBZTG4
Texas Instruments REF3125AIDBZTG4 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 REF3125AIDBZTG4Texas Instruments | REF3125AIDBZTTexas Instruments | REF3325AIDBZTTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Shares the exact same SOT-23-3 package and pinout (Pin 1: IN, Pin 2: OUT, Pin 3: GND) as the original part.Identical physical dimensions and mounting footprint.Provides identical 2.5V output voltage, 10mA current capacity, and 20ppm/°C tempco. | Same SOT-23-3 package and pinout (Pin 1: IN, Pin 2: OUT, Pin 3: GND).Identical physical package dimensions.Offers lower power consumption but limits the maximum output current to 5 mA (compared to the original 10 mA) and has a higher thermal drift of 30ppm/°C. | ||
 AI Summary | REF3125AIDBZTG4 by Texas Instruments: Series Voltage Reference IC Fixed 2.5V V ±0.2% 10 mA SOT-23-3. | This is the direct, active replacement for the obsolete 'G4' suffix version. The G4 was a legacy TI Pb-free marker, and the standard REF3125AIDBZT is fully RoHS-compliant and behaves identically.
| This is an excellent lower-power pin-compatible alternative from Texas Instruments, ideal if the application can accept a reduced 5 mA output current in exchange for a significant saving in supply current.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Series Voltage Reference IC Fixed 2.5V V ±0.2% 10 mA SOT-23-3 | Series Voltage Reference IC Fixed 2.5V V ±0.2% 10 mA SOT-23-3 | Series Voltage Reference IC Fixed 2.5V V ±0.15% 5 mA SOT-23-3 | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 9 weeks | 9 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Tolerance | ±0.2% | - | - | |
| Output Type | Fixed | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - | - | |
| Reference Type | Series | - | - | |
| Voltage - Input | 2.55V ~ 5.5V | - | - | |
| Current - Output | 10 mA | - | - | |
| Current - Supply | 135µA | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 REF3012AIDBZTG4Texas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| REF3012AIDBZRG4Texas Instruments | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| REF3025AIDBZRTexas Instruments | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
| REF3030AIDBZRG4Texas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 REF5025AIDGKTTexas Instruments | In stock | Active | 4Alternatives availableSee Alternatives |
 REF192ESZAnalog Devices | In stock | Active | 7Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments REF3125AIDBZTG4 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 REF3125AIDBZTG4 are the REF3125AIDBZT (Texas Instruments) and the REF3325AIDBZT (Texas Instruments), 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 REF3125AIDBZTG4 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 REF3125AIDBZTG4 (Texas Instruments) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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