Texas Instruments TL431AIDB
TL431AIDB variants from Texas Instruments
TL431AIDB Overview
What changes between part numbers, and what to check before you lock the BOM — Voltage References.
Key Features
- Footprint / package: SOT-23-5Single package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 4 distinct suffix patternsExamples: VT, VR, ZRG4, ZT. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Voltage References — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 4 TL431AIDB part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| TL431AIDBVT | Package: SOT-23-5 | Max Supply Voltage: 36V | Min Supply Voltage: 2.495V | Output Voltage: 36V | Output Current: 100mA | Max Output Current: 100mA | Max Input Voltage: 37V | Number of Channels: 1 | SOT-23-5 | Texas Instruments | Active | Compliant | In Stock | |
| TL431AIDBVR | Adjustable precision shunt regulator 5-SOT-23 -40 to 85 | - | Texas Instruments | Active | Compliant | In Stock | |
| TL431AIDBZRG4 | Adjustable precision shunt regulator 3-SOT-23 -40 to 85 | - | Texas Instruments | Active | Compliant | In Stock | |
| TL431AIDBZT | V-Ref Adjustable 2.495V to 36V 100mA Automotive 3-Pin SOT-23 T/R | - | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on TL431AIDB map to package, grade, and reel options.
How to Choose the Right TL431AIDB Voltage References
Match the footprint first
Packages here: SOT-23-5. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For TL431AIDB, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "TL431AIDB" — include the full suffix (e.g. VT, VR, ZRG4). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for TL431AIDB product family
Identity
Variant Parameters
Source TL431AIDB with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 4 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the TL431AIDB product family.