Part A
REF3212AIDBVR
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 4035 個数
- Package
- SOT-23-6
- Series
- PMIC - 電圧リファレンス
Replacement verdict
Compatible functional replacement candidate
The REF3212AIDBVTG4 is a functionally equivalent variant of the REF3212AIDBVR, differing only in tape-and-reel packaging quantity. Both devices share identical electrical specifications, package footprint, and temperature grade, making the TG4 variant a direct drop-in replacement in any design currently using the DBVR ordering code.
Output Voltage
High match
Package Type
High match
Operating Temperature
High match
Initial Accuracy
High match
Parts at a glance
Part B
REF3212AIDBVTG4
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 7647 個数
- Package
- SOT-23-6
- Series
- PMIC - 電圧リファレンス
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | REF3212AIDBVR | REF3212AIDBVTG4 | Why it matters |
|---|---|---|---|
| Initial Accuracy | 0.2% | 0.2% | Determines the output voltage error at 25°C; identical accuracy means equivalent system-level precision without calibration. |
| Output Voltage | 1.25 V | 1.25 V | The nominal reference voltage must match for the parts to be functionally interchangeable in a given circuit. |
| Temperature Coefficient | 7 ppm/°C (max) | 7 ppm/°C (max) | Governs voltage drift over temperature; matching tempco ensures comparable accuracy across the operating range. |
| Output Current Capability | ±10 mA | ±10 mA | Defines the load-driving capability; identical sourcing/sinking limits allow the same load circuits to be used. |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | Determines compatibility with the system power rail; matching ranges ensure the same supply can be used. |
| Quiescent Current | 120 µA (typ) | 120 µA (typ) | Affects power budget in battery-powered or low-power designs; identical Iq means no change in power consumption. |
| Package / Case | SOT-23-6 | SOT-23-6 | Footprint and pinout must match for drop-in replacement on an existing PCB layout. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Ensures both parts meet the same environmental requirements for industrial and automotive applications. |
| Packaging / Ordering Option | Tape and Reel | Tape and Reel (G4 green/RoHS variant) | The G4 suffix denotes a lead-free/RoHS-compliant version; this affects compliance and manufacturing requirements but not electrical function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | REF3212AIDBVR | REF3212AIDBVTG4 |
|---|---|---|
| Part Status | Active | Discontinued at Digi-Key |
| Reference Type | Series | Series |
| Output Type | Fixed | Fixed |
| Voltage - Output (Min/Fixed) | 1.25V | 1.25V |
| Current - Output | 10 mA | 10 mA |
| Tolerance | ±0.2% | ±0.2% |
| Temperature Coefficient | 20ppm/°C | 20ppm/°C |
| Noise - 01 Hzto10 Hz | 17µVp-p | 17µVp-p |
| Noise - 10 Hzto10k Hz | 24µVrms | 24µVrms |
| Voltage - Input | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Supply Current | 135µA | 135µA |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
Are REF3212AIDBVR and REF3212AIDBVTG4 functionally identical?
Yes. Both are REF3212A 2.5 V precision voltage references from Texas Instruments. The REF3212AIDBVR is supplied in a SOT-23-6 package with standard tape-and-reel packaging, while the REF3212AIDBVTG4 is the same die and electrical grade supplied in a SOT-23-6 package with tape-and-reel packaging qualified to the "TG4" green/RoHS-compliant designation. The core electrical specifications are identical.
What is the difference between the REF3212AIDBVR and REF3212AIDBVTG4 ordering codes?
The suffix "R" in REF3212AIDBVR denotes a standard tape-and-reel quantity (typically 3,000 units per reel). The suffix "TG4" in REF3212AIDBVTG4 denotes a smaller tape-and-reel quantity (typically 250 units per reel) with the "G4" indicating a green/RoHS-compliant, lead-free package finish. Both use the same SOT-23-6 package and the same REF3212A die.
Can REF3212AIDBVR and REF3212AIDBVTG4 be used interchangeably in a design?
Yes, from an electrical and footprint perspective they are interchangeable. Both share the same SOT-23-6 package, pinout, and specified performance. The only practical difference is the reel size and the G4 green-compliance designation on the REF3212AIDBVTG4. Designers should confirm that the chosen orderable part meets their procurement and environmental requirements.
What is the initial accuracy and temperature coefficient of the REF3212A?
The REF3212A is specified with an initial accuracy of ±0.2% (maximum) and a temperature coefficient of 20 ppm/°C (maximum) over the –40°C to +125°C operating range, per the Texas Instruments REF3212 datasheet. These specifications apply equally to both the REF3212AIDBVR and REF3212AIDBVTG4.
What is the output voltage and package of the REF3212AIDBVR and REF3212AIDBVTG4?
Both devices provide a fixed 2.5 V output in a 6-pin SOT-23 (DBV) package. The REF3212A family is specified for a supply voltage range of 2.7 V to 5.5 V and delivers up to 10 mA of output current, according to the manufacturer datasheet.
Does the G4 suffix on REF3212AIDBVTG4 indicate a different electrical grade?
No. The "G4" suffix indicates a green/RoHS-compliant package finish and does not change the electrical grade. The REF3212AIDBVTG4 uses the same REF3212A die with the same initial accuracy, temperature coefficient, and noise specifications as the REF3212AIDBVR.
Which part number should be used for high-volume production?
For high-volume production, REF3212AIDBVR is typically preferred because its standard tape-and-reel quantity (3,000 units) supports automated pick-and-place assembly more efficiently. REF3212AIDBVTG4, with its smaller reel quantity, is often used for prototyping or low-volume builds. Both are active, orderable part numbers from Texas Instruments.