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Adjustable precision shunt regulator 8-SOIC -40 to 125
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
TL431QD by Texas Instruments 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.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
2156-TL431QD-ND
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DigiKey | IC VREF SHUNT ADJ 2.2% 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Bulk MARKETPLACE PRODUCT |
19015 In Stock |
|
$0.4300 | Buy Now |
DISTI #
296-TL431QD-ND
|
DigiKey | IC VREF SHUNT ADJ 2.2% 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Tube |
4567 In Stock |
|
$0.3679 / $0.8100 | Buy Now |
DISTI #
595-TL431QD
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Mouser Electronics | Voltage References Adjustable Precision Shunt Regulator RoHS: Compliant | 3140 |
|
$0.3470 / $0.8100 | Buy Now |
DISTI #
86030442
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Verical | V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SOIC Tube RoHS: Compliant Min Qty: 723 Package Multiple: 1 Date Code: 0701 | Americas - 12715 |
|
$0.5188 | Buy Now |
DISTI #
86044902
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Verical | V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SOIC Tube RoHS: Compliant Min Qty: 723 Package Multiple: 1 | Americas - 4500 |
|
$0.5188 | Buy Now |
DISTI #
86031486
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Verical | V-Ref Adjustable 2.495V to 36V 100mA 8-Pin SOIC Tube RoHS: Compliant Min Qty: 723 Package Multiple: 1 Date Code: 0501 | Americas - 1800 |
|
$0.5188 | Buy Now |
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Bristol Electronics | 1500 |
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RFQ | ||
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Quest Components | 1200 |
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$0.2768 / $0.6920 | Buy Now | |
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Rochester Electronics | TL431 - Adjustable precision shunt regulator RoHS: Compliant Status: Active Min Qty: 1 | 19015 |
|
$0.2573 / $0.4150 | Buy Now |
DISTI #
TL431QD
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TME | IC: voltage reference source, 2.495V, ±2.2%, SO8, 100mA Min Qty: 1 | 0 |
|
$0.3990 / $0.7910 | RFQ |
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TL431QD
Texas Instruments
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Datasheet
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TL431QD
Texas Instruments
Adjustable precision shunt regulator 8-SOIC -40 to 125
|
Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | SOIC | |
Pin Count | 8 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Samacsys Manufacturer | Texas Instruments | |
Additional Feature | OUTPUT VOLTAGE ADJUSTABLE FROM 2.495V TO 36V | |
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 | 125 °C | |
Operating Temperature-Min | -40 °C | |
Output Current-Max | 0.1 A | |
Output Voltage-Max | 2.55 V | |
Output Voltage-Min | 2.44 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 | |
Surface Mount | YES | |
Technology | BIPOLAR | |
Temp Coef of Voltage-Max | 92 ppm/°C | |
Temperature Grade | AUTOMOTIVE | |
Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
Terminal Form | GULL WING | |
Terminal Pitch | 1.27 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | 30 | |
Trim/Adjustable Output | YES | |
Voltage Tolerance-Max | 2.204408% | |
Width | 3.9 mm |
This table gives cross-reference parts and alternative options found for TL431QD. 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 TL431QD, 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 |
---|---|---|---|---|
TL431QDR | Texas Instruments | $0.1298 | Adjustable precision shunt regulator 8-SOIC -40 to 125 | TL431QD vs TL431QDR |
TL431QDE4 | Texas Instruments | Check for Price | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO8, GREEN, PLASTIC, SOIC-8 | TL431QD vs TL431QDE4 |
TL431QDRE4 | Texas Instruments | Check for Price | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO8, GREEN, PLASTIC, SOIC-8 | TL431QD vs TL431QDRE4 |
TL432QDBVRG4 | Texas Instruments | Check for Price | IC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PDSO5, GREEN, PLASTIC, SOT-23, 5 PIN, Voltage Reference | TL431QD vs TL432QDBVRG4 |
TL432QDBVTG4 | Texas Instruments | Check for Price | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO5, PLASTIC, SOT-23, 5 PIN | TL431QD vs TL432QDBVTG4 |
TL432QDBVRE4 | Texas Instruments | Check for Price | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495V, PDSO5, GREEN, PLASTIC, SOT-23, 5 PIN | TL431QD vs TL432QDBVRE4 |
The TL431QD can operate from -40°C to 125°C, but the accuracy and stability of the output voltage may degrade at extreme temperatures.
While the TL431QD can handle up to 100 mA of output current, it's not suitable for high-current applications due to its limited power dissipation and thermal resistance. For high-current applications, consider using a dedicated voltage regulator IC.
To ensure stability, use a minimum output capacitance of 10 nF, and consider adding a series resistor (e.g., 10 Ω) between the output and the load to prevent oscillations. Additionally, ensure that the input voltage is well-regulated and decoupled.
While the TL431QD has a relatively low output voltage tolerance (±1%), it may not be suitable for high-precision applications due to its temperature coefficient and noise sensitivity. Consider using a dedicated precision voltage reference IC for such applications.
The output voltage (Vout) can be calculated using the formula: Vout = 2.5V x (1 + R1/R2), where R1 and R2 are the resistors in the external divider. Ensure that the resistors are of high precision and low temperature coefficient to maintain accuracy.