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Best Alternatives to TL431ACDBZR

Package: SOT-23-3Nexperia USA Inc.InterfaceReference Type: ShuntOutput Type: AdjustableVoltage - Output (Min/Fixed): 2.495 VCurrent - Output: 100 mATolerance: ±1%

TL431ACDBZR replacements should keep the SOT-23-3 TL431 pinout, 2.495V reference, 36V range, 100mA sink current, and 1% tolerance.

AI replacement insight

Electrical riskmedium

Confirm 36V range and 100mA sink.

Package risklow

Most kept parts claim SOT-23-3.

Firmware risklow

No firmware interface.

Sourcing riskmedium

External parts need ingestion.

Can it be replaced directly?

TL431AIDBZR is the closest reviewed candidate, but FAE review is still required.

Best replacement path

Prefer indexed same-family TL431 A/B/Q DBZ parts, then verify pinout and ratings.

Main risk

Unchecked pinout and key electrical limits.

Recommended alternatives

3
TL431AIDBZR package
TL431AIDBZR

Nexperia USA Inc.

Needs validationmedium risk

TL431AIDBZR appears package and pin compatible with wider temperature range.

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Alternative comparison matrix

Feature / factorTL431ACDBZRTL431AIDBZRTL431BQDBZRTL431AQDBZRCompatibility / risk
PackageSOT-23-3SOT-23-3SOT-23-3SOT-23-3SOT-23-3 — same package; TL431BQDBZR: same package; TL431AQDBZR: same package
PinoutREF/CATH/ANREF/CATH/ANnormalnormalREF/CATH/AN / normal — TI evidence; TL431BQDBZR: same-series only; TL431AQDBZR: same-series only
Tolerance1%1%0.5%1%1% / 0.5% — same grade; TL431BQDBZR: tighter; TL431AQDBZR: same grade
Temperature0-70C-40-85C-40-125C-40-125C-40-85C / -40-125C — wider range; TL431BQDBZR: wider range; TL431AQDBZR: wider range
Voltage2.495-36V-2.5-36V-2.5-36V — summary
Current100mA--100mA100mA — artifact spec

Application & sourcing insights

Questions & answers

Verified drop-in options for TL431ACDBZR are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.