Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | 935293276215 | SOT23 | Order product |
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Click here for more informationTL431BFDT
Adjustable precision shunt regulator
Three-terminal shunt regulator family with an output voltage range between
Vref = 2.495 V and 36 V, to be set by two external resistors.
Reference voltage tolerance (Vref) | Temperature range (Tamb) | Pinning configuration | ||
|---|---|---|---|---|
0 ° C to 70 °C | -40 ° C to 85 °C | -40 ° C to 125 °C | ||
2.0 % | TL431CDBZR | TL431IDBZR | TL431QDBZR | normal pinning |
TL431FDT | normal pinning | |||
TL431MFDT | mirrored pinning | |||
1.0 % | TL431ACDBZR | TL431AIDBZR | TL431AQDBZR | normal pinning |
TL431AFDT | normal pinning | |||
TL431AMFDT | mirrored pinning | |||
0.5 % | TL431BCDBZR | TL431BIDBZR | TL431BQDBZR | normal pinning |
TL431BFDT | normal pinning | |||
TL431BMFDT | mirrored pinning | |||
Alternatives
Features and benefits
Programmable output voltage up to 36 V
Three different reference voltage tolerances:
Standard grade: 2 %
A-Grade: 1 %
B-Grade: 0.5 %
Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)
Low output noise
Typical output impedance: 0.2 Ω
Sink current capability: 1 mA to 100 mA
AEC-Q100 qualified (grade 1)
Applications
Shunt regulator
Precision current limiter
Precision constant current sink
Isolated feedback loop for Switch Mode Power Supply (SMPS)
Parametrics
| Type number | Package version | Package name | Size (mm) | Pinning configuration | Tamb (°C) | Vref tolerance (%) | Vref (V) | VKA (V) | IK (mA) |
|---|---|---|---|---|---|---|---|---|---|
| TL431BFDT | SOT23 | SOT23 | 2.9 x 1.3 x 1 | normal | -40~125 | 0.5 | 2.495 | 36 | 100 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 (935293276215) |
Active | AT% |
(SOT23) |
SOT23 |
REFLOW_BG-BD-1
WAVE_BG-BD-1 |
SOT23_215 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | TL431BFDT |
|
|
Series
Documentation (12)
| File name | Title | Type | Date |
|---|---|---|---|
| TL431_FAM | Adjustable precision shunt regulator | Data sheet | 2024-04-30 |
| AN11119 | Medium power small-signal MOSFETs in DC-to-DC conversion | Application note | 2013-05-07 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT23 | 3D model for products with SOT23 package | Design support | 2019-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT23_mk | plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body | Marcom graphics | 2017-01-28 |
| SOT23 | plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body | Package information | 2022-10-12 |
| SOT23_215 | Reel pack for SMD, 7"; Q3/T4 product orientation | Packing information | 2025-01-20 |
| TL431BFDT_Nexperia_Product_Reliability | TL431BFDT Nexperia Product Reliability | Quality document | 2024-04-22 |
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 |
| TL431 | TL431 SPICE model | SPICE model | 2020-10-26 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| TL431BFDT | TL431BFDT,215 | 935293276215 | Active | SOT23_215 | 3,000 |
|
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.