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Texas Instruments TL1431MDREP — Discrete Semiconductors
Texas Instruments

TL1431MDREP Shunt Voltage Reference, Adjustable, ±0.4%

MPNTL1431MDREP
End of Life

Texas Instruments TL1431MDREP, adjustable shunt voltage reference, ±0.4% tolerance, 100 mA output, 2.5 V to 36 V, -55°C to 125°C, 8-SOIC surface mount.

$5.04Ref. price · indicative, final on quote
TL1431MDREP datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

TL1431MDREP Technical Specifications
ParameterValue
Output typeAdjustable
Mounting typeSurface Mount
Reference typeShunt
Voltage - output36 V
Voltage - output (Min (Fixed))2.5V
Current - output100 mA
Current - cathode1 mA
Operating temperature-55°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.4%
Case8-SOIC (0.154\", 3.90mm Width)

Product details

What this part is and where it fits

The Texas Instruments TL1431MDREP is an adjustable shunt voltage reference in an 8-SOIC package. It delivers a programmable output from 2.5 V up to 36 V with a tight ±0.4% initial tolerance, and can sink up to 100 mA. The -55°C to 125°C operating range qualifies it for military, avionics, and downhole instrumentation where the board sees wide thermal swings. The shunt topology means it behaves as a three-terminal programmable Zener — no external pass transistor needed for moderate loads, just a single resistor from the supply rail.

Lifecycle and sourcing posture

The TL1431MDREP carries an active product status and is ROHS3 compliant. The 8-SOIC package is a common footprint, so it cross-references to many standard shunt references if a second source is needed — but the military temperature range and ±0.4% tolerance make this the tighter-spec option for harsh-environment designs.

Frequently asked questions

What is the tolerance of TL1431MDREP?

The initial tolerance is ±0.4%. That is the band at 25°C; the full temperature range drift is specified in the datasheet and typically runs under 30 ppm/°C for this family.

What is the closest functional equivalent to TL1431MDREP?

The LM4132AMF-4.1/NOPB is a series reference, not a shunt — it requires a supply voltage and delivers a fixed 4.096 V output with ±0.05% tolerance, but it cannot sink current like the TL1431. For a pin-compatible shunt replacement, look at the TL431 family in the same 8-SOIC package; the TL1431 offers the wider -55°C to 125°C range versus the TL431's typical -40°C to 85°C.