| Category | |
| Manufacturer Name | |
| Mounting Type | |
| Storage Temperature | |
| Tape & Reel |
The TL431IDR is a three-terminal adjustable shunt regulator from Texas Instruments, designed for stable thermal performance across various temperature ranges. Its output voltage can be precisely set between Vref (approximately 2.5V) and 36V using two external resistors.
Key electrical characteristics include a typical output impedance of 0.2Ω and a sink-current capability ranging from 1mA to 100mA. The reference voltage tolerance is 0.5% at 25°C for the B grade. The device operates reliably within a temperature range of -40°C to 85°C.
This shunt regulator is suitable for applications such as on-board regulation, adjustable power supplies, and switching power supplies. Its active output circuitry provides a sharp turn-on characteristic, making it an effective replacement for Zener diodes in many designs.
The TL431IDR comes in an 8-pin SOIC package suitable for surface mounting. It is supplied in Tape & Reel packaging with a standard quantity of 2500 units.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.08 | $0.08 |
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.
The TL431IDR operates from -40°C to 85°C.
The typical output impedance is 0.2Ω.
The sink-current capability ranges from 1mA to 100mA.
The TL431IDR is supplied in an 8-pin SOIC package.
