Datasheets
TL431CDT by:

Adjustable micropower shunt voltage reference

Part Details for TL431CDT by STMicroelectronics

Results Overview of TL431CDT by STMicroelectronics

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Applications Energy and Power Systems Renewable Energy Automotive

TL431CDT Information

TL431CDT by STMicroelectronics is a Voltage Reference.
Voltage References are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for TL431CDT

Part # Distributor Description Stock Price Buy
DISTI # 33R1376
Newark Voltage Reference, Shunt - Adjustable, Tl431 Series, 2.495V To 36V, Soic-8 Rohs Compliant: Yes |Stmicroelectronics TL431CDT RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape 56
  • 1 $0.1300
  • 10 $0.1300
  • 25 $0.1300
  • 50 $0.1300
  • 100 $0.1190
  • 250 $0.1190
  • 500 $0.1190
  • 1,000 $0.1190
$0.1190 / $0.1300 Buy Now
DISTI # 04X6892
Newark Voltage Reference, Shunt - Adjustable, Tl431 Series, 2.495V To 36V, Soic-8 Rohs Compliant: Yes |Stmicroelectronics TL431CDT RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 1 Container: Reel 0
  • 2,500 $0.1180
$0.1180 Buy Now
DISTI # 96AC4346
Newark Power Management Rohs Compliant: Yes |Stmicroelectronics TL431CDT RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 2,500 $0.1180
$0.1180 Buy Now
DISTI # 497-3036-1-ND
DigiKey IC VREF SHUNT ADJ 2.21% 8SO Min Qty: 1 Lead time: 10 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) 48635
In Stock
  • 1 $0.3300
  • 10 $0.2280
  • 25 $0.2024
  • 100 $0.1743
  • 250 $0.1609
  • 500 $0.1528
  • 1,000 $0.1462
  • 2,500 $0.1183
  • 5,000 $0.1181
$0.1181 / $0.3300 Buy Now
DISTI # TL431CDT
Avnet Americas Voltage Reference, Precision, Shunt Adjustable, 2.44 V to 2.55 V, 8 Pins, SOIC - Tape and Reel (Alt: TL431CDT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 10 Weeks, 0 Days Container: Reel 27500
  • 2,500 $0.0789
$0.0789 Buy Now
DISTI # 511-TL431CDT
Mouser Electronics Voltage References 2.5-36V Prog Adjust RoHS: Compliant 5038
  • 1 $0.3300
  • 10 $0.2280
  • 25 $0.2030
  • 100 $0.1750
  • 250 $0.1530
  • 1,000 $0.1470
  • 2,500 $0.1180
  • 10,000 $0.1100
  • 20,000 $0.1070
$0.1070 / $0.3300 Buy Now
DISTI # E02:0323_00214098
Arrow Electronics V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SO N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 10 Weeks Date Code: 2444 Europe - 10000
  • 2,500 $0.1057
  • 10,000 $0.0791
  • 20,000 $0.0784
$0.0784 / $0.1057 Buy Now
STMicroelectronics Adjustable micropower shunt voltage reference RoHS: Compliant Min Qty: 1 5038
  • 1 $0.3200
  • 10 $0.2200
  • 25 $0.2000
  • 100 $0.1700
  • 250 $0.1500
$0.1500 / $0.3200 Buy Now
Future Electronics TL431 Series Adjustable 2.5 to 36 V ±2 % Shunt Voltage Reference - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 10 Weeks Container: Reel 20000
Reel
  • 2,500 $0.0841
  • 7,500 $0.0819
  • 10,000 $0.0814
  • 25,000 $0.0796
  • 37,500 $0.0779
$0.0779 / $0.0841 Buy Now
Future Electronics TL431 Series Adjustable 2.5 to 36 V ±2 % Shunt Voltage Reference - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 12500 Package Multiple: 2500 Lead time: 10 Weeks Container: Reel 0
Reel
  • 2,500 $0.0841
  • 7,500 $0.0819
  • 10,000 $0.0814
  • 25,000 $0.0796
  • 37,500 $0.0779
$0.0779 / $0.0841 Buy Now
DISTI # 88120851
Verical V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SO N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Date Code: 2444 Americas - 10000
  • 2,500 $0.1060
  • 10,000 $0.0794
  • 20,000 $0.0786
$0.0786 / $0.1060 Buy Now
Bristol Electronics   Min Qty: 14 5000
  • 14 $0.3750
  • 41 $0.1875
  • 268 $0.1125
  • 1,335 $0.0750
  • 4,668 $0.0562
$0.0562 / $0.3750 Buy Now
Bristol Electronics   Min Qty: 14 2500
  • 14 $0.3750
  • 41 $0.1875
  • 268 $0.1125
  • 1,335 $0.0750
$0.0750 / $0.3750 Buy Now
Bristol Electronics   Min Qty: 14 2500
  • 14 $0.3750
  • 41 $0.1875
  • 268 $0.1125
  • 1,335 $0.0750
$0.0750 / $0.3750 Buy Now
Bristol Electronics   1751
RFQ
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 5344
  • 1 $0.2634
  • 1,425 $0.1141
  • 5,258 $0.1054
$0.1054 / $0.2634 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 4000
  • 1 $0.5000
  • 334 $0.1000
  • 4,001 $0.0750
$0.0750 / $0.5000 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 3840
  • 1 $0.3700
  • 301 $0.1110
  • 3,605 $0.0740
$0.0740 / $0.3700 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 2000
  • 1 $0.5000
  • 41 $0.1500
  • 334 $0.1000
$0.1000 / $0.5000 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 2000
  • 1 $0.5000
  • 41 $0.1500
  • 334 $0.1000
$0.1000 / $0.5000 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+2.5 TO +36V,BIPOLAR,SOP,8PIN,PLASTIC 2000
  • 1 $0.8780
  • 128 $0.2634
  • 1,520 $0.1756
$0.1756 / $0.8780 Buy Now
Rochester Electronics TL431 - Power Management-VOLTAGE REFEREN RoHS: Compliant Status: Active Min Qty: 1 6502
  • 100 $0.0700
  • 500 $0.0630
  • 1,000 $0.0581
  • 10,000 $0.0518
  • 100,000 $0.0434
$0.0434 / $0.0700 Buy Now
Future Electronics TL431 Series Adjustable 2.5 to 36 V �2 % Shunt Voltage Reference - SOIC-8 Min Qty: 2500 Package Multiple: 2500 20000
null
  • 2,500 $0.0841
  • 7,500 $0.0819
  • 10,000 $0.0814
  • 25,000 $0.0796
  • 37,500 $0.0779
$0.0779 / $0.0841 Buy Now
DISTI # TL431CDT
TME IC: voltage reference source, 2.495V, ±2%, SO8, reel,tape, 100mA Min Qty: 1 2249
  • 1 $0.5130
  • 10 $0.1740
  • 50 $0.1440
  • 150 $0.1160
  • 500 $0.1010
  • 2,500 $0.0810
$0.0810 / $0.5130 Buy Now
DISTI # TL431CDT
IBS Electronics VOLTAGE REFERENCE PRECISION SHUNT ADJUSTABLE 2.44 V TO 2.55 V 8 PINS SOIC Min Qty: 2500 Package Multiple: 1 20000
  • 2,500 $0.0389
  • 10,000 $0.0378
  • 37,500 $0.0368
  • 75,000 $0.0363
  • 187,500 $0.0351
$0.0351 / $0.0389 Buy Now
NexGen Digital   4242
RFQ
Chip 1 Exchange INSTOCK 1225
RFQ
DISTI # TL431CDT
Avnet Silica Voltage Reference Precision Shunt Adjustable 244 V to 255 V 8 Pins SOIC (Alt: TL431CDT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 11 Weeks, 0 Days Silica - 267500
Buy Now
Chip-Germany GmbH   RoHS: Not Compliant 20
RFQ
Cytech Systems Limited IC VREF SHUNT ADJ 2.21% 8SO 7500
RFQ
DISTI # TL431CDT
EBV Elektronik Voltage Reference Precision Shunt Adjustable 244 V to 255 V 8 Pins SOIC (Alt: TL431CDT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 11 Weeks, 0 Days EBV - 4977500
Buy Now
LCSC 2.495V36V 100mA Adjustable SO-8 Voltage Reference ROHS 4190
  • 5 $0.1252
  • 50 $0.1007
  • 150 $0.0884
  • 500 $0.0792
  • 2,500 $0.0719
  • 5,000 $0.0682
$0.0682 / $0.1252 Buy Now
Vyrian Other Function Semiconductors 378443
RFQ

Part Details for TL431CDT

TL431CDT CAD Models

TL431CDT Part Data Attributes

TL431CDT STMicroelectronics
Buy Now Datasheet
Compare Parts:
TL431CDT STMicroelectronics Adjustable micropower shunt voltage reference
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description SOP-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 10 Weeks
Samacsys Manufacturer STMicroelectronics
Additional Feature THE OUTPUT VOLTAGE MAY BE SET TO ANY VALUE BETWEEN 2.5V AND 36V WITH TWO EXTERNAL RESISTORS
Analog IC - Other Type TWO TERMINAL VOLTAGE REFERENCE
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 0.1 A
Output Voltage-Max 2.567 V
Output Voltage-Min 2.423 V
Output Voltage-Nom 2.495 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Supply Current-Max (Isup) 100 mA
Surface Mount YES
Technology BIPOLAR
Temp Coef of Voltage-Max 97.338 ppm/°C
Temperature Grade COMMERCIAL
Terminal Finish Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Trim/Adjustable Output YES
Width 3.9 mm

Alternate Parts for TL431CDT

This table gives cross-reference parts and alternative options found for TL431CDT. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of TL431CDT, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
TL431IDRG4 Texas Instruments $0.1129 Adjustable precision shunt regulator 8-SOIC -40 to 85 TL431CDT vs TL431IDRG4
TL431IYDT STMicroelectronics $0.1728 Adjustable micropower shunt voltage reference TL431CDT vs TL431IYDT
TL431CDR2G Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8, LEAD FREE, PLASTIC, SOIC-8 TL431CDT vs TL431CDR2G
TL431ID Texas Instruments Check for Price Adjustable precision shunt regulator 8-SOIC -40 to 85 TL431CDT vs TL431ID
TL431IDR Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8, GREEN, PLASTIC, SOIC-8 TL431CDT vs TL431IDR
TL431CDR Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8, GREEN, PLASTIC, SOIC-8 TL431CDT vs TL431CDR
TL431IDR2 onsemi Check for Price 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO8, PLASTIC, SOIC-8 TL431CDT vs TL431IDR2
TL431IDR2G Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8, LEAD FREE, PLASTIC, SOIC-8 TL431CDT vs TL431IDR2G
TL431ID Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8, GREEN, PLASTIC, SOIC-8 TL431CDT vs TL431ID
Part Number Manufacturer Composite Price Description Compare
TL431AILPR Texas Instruments $0.0979 Adjustable precision shunt regulator 3-TO-92 -40 to 85 TL431CDT vs TL431AILPR
TL431IDG onsemi $0.1974 Voltage Reference, Programmable Precision, Shunt Regulator, SOIC-8 Narrow Body, 98-TUBE TL431CDT vs TL431IDG
TL431AID Motorola Mobility LLC Check for Price 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO8, PLASTIC, SOP-8 TL431CDT vs TL431AID
AS431CR5S13 Artesyn Embedded Technologies Check for Price Two Terminal Voltage Reference, 1 Output, 2.503V, Trim/Adjustable, PSSO3, SOT-89, 3 PIN TL431CDT vs AS431CR5S13
TL431AIDR Texas Instruments Check for Price Adjustable precision shunt regulator 8-SOIC -40 to 85 TL431CDT vs TL431AIDR
TL431AILPG Rochester Electronics LLC Check for Price Three Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PBCY3, LEAD FREE, PLASTIC, TO-92, TO-226, 3 PIN TL431CDT vs TL431AILPG
AS431CR5S13 Emerson Embedded Power Check for Price 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.503V, PSSO3, SOT-89, 3 PIN TL431CDT vs AS431CR5S13
TL431ACLPRAG onsemi Check for Price Voltage Reference, Programmable Precision, Shunt Regulator, TO-92 (TO-226) 5.33mm Body Height, 2000-REEL TL431CDT vs TL431ACLPRAG
AS431BR5ST Emerson Embedded Power Check for Price 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.503V, PSSO3, SOT-89, 3 PIN TL431CDT vs AS431BR5ST
TL431AILPRA onsemi Check for Price 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PBCY3, PLASTIC, TO-92, TO-226, 3 PIN TL431CDT vs TL431AILPRA

TL431CDT Related Parts

TL431CDT Frequently Asked Questions (FAQ)

  • The TL431CDT can operate from -40°C to 125°C, but the accuracy and stability of the voltage reference may degrade at extreme temperatures.

  • To ensure stability, use a minimum output capacitance of 10nF, keep the input and output capacitors close to the device, and avoid long PCB traces. Also, use a low-ESR capacitor for the output capacitor.

  • Keep the TL431CDT away from high-current paths and noisy areas on the PCB. Use a star-ground configuration, and keep the input and output capacitors close to the device. Use a solid ground plane and avoid vias under the device.

  • While the TL431CDT can be used as a voltage regulator, it's not recommended due to its limited current capability (up to 15mA). Instead, use it as a voltage reference and pair it with an external transistor or regulator for higher current applications.

  • The output voltage of the TL431CDT is determined by the ratio of the resistors in the feedback network. Use the formula: Vout = 2.5V x (R1 + R2) / R2, where R1 and R2 are the resistors in the feedback network.

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