| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
721 pcs
|
721 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Mounting Type | |
| Operating Temperature | |
| Temperature Coefficient |
The TL431 is a precision programmable shunt voltage reference designed for adjustable voltage and current referencing applications. It allows the output voltage to be set anywhere between Vref (approximately 2.5V) and 36V using two external resistors. This device features specified thermal stability over automotive, commercial, and military temperature ranges, operating from -40°C to 125°C.
With a typical output impedance of 0.2Ω and active output circuitry, the TL431 provides a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in applications such as onboard regulation, adjustable power supplies, and switching power supplies. It offers sink-current capability from 1mA to 100mA and various grades with initial voltage tolerances at 25°C of 0.5% (B Grade), 1% (A Grade), and 2% (Standard Grade).
The TL431 is available in multiple package types including SOT-23, SOIC, PDIP, and SOP, suitable for surface mount and through-hole applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The output voltage can be set to any value between approximately 2.5V and 36V.
The reference voltage tolerance at 25°C is 0.5% for the B Grade, 1% for the A Grade, and 2% for the Standard Grade.
The TL431 operates from -40°C to 125°C.
The typical output impedance is 0.2Ω.
The sink-current capability ranges from 1mA to 100mA.
The TL431 is available in SOT-23-3, SOT-23-5, SOIC-8, PDIP-8, and SOP-8 packages.