TL431 Adjustable Precision Shunt Regulator, 2.5-36 V, 100 mA
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Most Electronics | TL431 | 2.25 EGP2.52 | View in store |
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Lowest price recorded: 2.25 EGP
About this product
The TL431 is a three-terminal adjustable precision shunt voltage regulator. Using two external resistors as a voltage divider, it sets an output from 2.5 V to 36 V and can sink up to 100 mA. It is widely used as a voltage reference, in feedback loops of switch-mode power supplies, and in simple shunt regulator circuits.
Specifications
- Type
- Adjustable precision shunt regulator / منظم توازٍ دقيق قابل للضبط
- Output voltage range
- 2.5 V to 36 V
- Maximum cathode current
- 100 mA
- Reference voltage
- 2.495 V (typ.)
- Terminals
- Reference, Anode, Cathode / المرجع، المصعد، المهبط
- Common package
- TO-92
Frequently asked questions
What is the price of TL431 Adjustable Precision Shunt Regulator, 2.5-36 V, 100 mA in Egypt?
TL431 Adjustable Precision Shunt Regulator, 2.5-36 V, 100 mA currently costs 2.25 EGP in Egypt.
Where can I buy TL431 Adjustable Precision Shunt Regulator, 2.5-36 V, 100 mA in Egypt?
TL431 Adjustable Precision Shunt Regulator, 2.5-36 V, 100 mA is available from Most Electronics. Compare the offers above to find the best price.
How do I calculate the TL431 output voltage?
Use Vout = Vref × (1 + R1/R2), where Vref is about 2.495 V, R1 is connected between cathode and reference, and R2 is connected between reference and anode. For example, R1 = 10 kΩ and R2 = 10 kΩ gives about 4.99 V.
Does the TL431 need a minimum current to regulate?
Yes. The cathode current must stay above the minimum value listed in the datasheet for regulation to work. In practice this is ensured by choosing a suitable series resistor from the supply to the cathode.
