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Texas Instruments REF3333AIDBZR — Analog & Data Acquisition

REF3333AIDBZR 3.3V Series Voltage Reference, ±0.15%

MPNREF3333AIDBZR
End of Life

Texas Instruments REF3333AIDBZR, Series Voltage Reference, Fixed 3.3V Output, ±0.15% Tolerance, 30ppm/°C Drift, 8.5µA Supply Current, SOT-23-3 Package, -40°C to 125°C.

$2.04Ref. price · indicative, final on quote
PackagingTO-236-3, SC-59, SOT-23-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

REF3333AIDBZR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeSeries
Voltage - input3.5V ~ 5.5V
Voltage - output (Min (Fixed))3.3V
Output current5 mA
Current - supply8.5µA
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.15%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 0.1Hz to 10Hz92µVp-p
Temperature coefficient30ppm/°C

Product details

3.3 V fixed output, SOT-23-3 — what this reference delivers

It is designed for applications that need a stable, low-noise voltage rail — think ADC references, sensor excitation, or power-supply monitoring in industrial or automotive environments. The ±0.15% initial tolerance and 30 ppm/°C temperature coefficient keep the output tight across the -40°C to 125°C operating range, so the reference holds its accuracy whether the board sits in a cold warehouse or near a motor drive. Supply current is 8.5 µA typical, which matters for loops that cannot spare much quiescent draw.

Input range and output drive

Output current is rated at 5 mA.

Housed in a SOT-23-3 package (also listed as TO-236-3 / SC-59), this is a three-pin surface-mount device. The small footprint suits dense PCBs, but the limited pin count means no trim or shutdown function — the output is always on when the input is present.

The part is ROHS3 compliant. For current availability and pricing, submit an RFQ — the supply position is confirmed at quote time through independent distribution.

Frequently asked questions

What is the exact output voltage of REF3333AIDBZR?

Buyers need to confirm the fixed 3.3V output matches their design requirement.

Where can I buy REF3333AIDBZR in stock?

Sourcing buyers prioritize immediate availability to avoid production delays.

What is the price of REF3333AIDBZR?

Price directly influences BOM cost and purchasing decisions.

Is REF3333AIDBZR a suitable replacement for REF3325?

Engineers and technicians often need cross-reference info for alternative parts.

What is the package and pinout of REF3333AIDBZR?

Design engineers must verify PCB footprint compatibility before layout.

Does REF3333AIDBZR require an output capacitor?

Application-specific stability concerns affect circuit design and component count.