Skip to main content
Log in
Texas Instruments REF3033AIDBZTG4 — Analog & Data Acquisition

REF3033AIDBZTG4 3.3V Series Voltage Reference, ±0.2%

MPNREF3033AIDBZTG4
End of Life

Texas Instruments REF3033AIDBZTG4, Series Voltage Reference, Fixed 3.3V Output, ±0.2% Tolerance, 75ppm/°C, 36µVp-p Noise, -40°C to 125°C, SOT-23-3 Package.

$1.3300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

REF3033AIDBZTG4 specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeSeries
Voltage - input3.35V ~ 5.5V
Voltage - output (Min (Fixed))3.3V
Output current25 mA
Current - supply50µA
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.2%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 0.1Hz to 10Hz36µVp-p
Noise - 10Hz to 10kHz105µVrms
Temperature coefficient75ppm/°C

Product details

Noise floor and load capability

The 105 µVrms wideband noise from 10 Hz to 10 kHz is typical for this class of micropower reference. Output current is rated for 25 mA, enough to bias a handful of op-amp stages or a single ADC reference input without a buffer. The 50 µA quiescent supply current keeps the thermal load negligible in a battery-powered node.

Input headroom and package fit

Input voltage range is 3.35 V to 5.5 V. The SOT-23-3 package (TO-236-3, SC-59) is shared across the REF30xx family.

Frequently asked questions

What is the output voltage accuracy of REF3033AIDBZTG4?

Buyers need to confirm the tolerance (±0.2%) meets their system precision requirements.

Is REF3033AIDBZTG4 RoHS compliant and lead-free?

Compliance is mandatory for many manufacturing and regulatory standards.

What is the current price and available stock of REF3033AIDBZTG4?

Sourcing buyers need real-time pricing and inventory to fill BOM lines quickly.

Which distributors carry REF3033AIDBZTG4 and what is the lead time?

Availability and lead time affect procurement schedule and production planning.

Can REF3033AIDBZTG4 be used as a drop-in replacement for REF3033AIDBZT?

Engineers need to verify pin-to-pin compatibility and electrical equivalence when substituting parts.

What are the recommended alternatives or equivalents for REF3033AIDBZTG4 from other manufacturers?

Cross-referencing helps find second sources, manage supply risk, and optimize cost.