TL431-AB3-R The UTC TL431-AB3-R is an adjustable shunt voltage reference with programmable output from 2.5V to 36V, sink current capability of 1mA to 100mA, and low dynamic output impedance of 0.2Ω. It is housed in a surface-mount SOT-89 package and operates over -40°C to +85°C.
Mfr Part #:

TL431-AB3-R

Available from 1 distributors
Mfr Name: UTC
UTC
The UTC TL431-AB3-R is an adjustable shunt voltage reference with programmable output from 2.5V to 36V, sink current capability of 1mA to 100mA, and low dynamic output impedance of 0.2Ω. It is housed in a surface-mount SOT-89 package and operates over -40°C to +85°C.
✓ Total Stock: 4,302 pcs

TL431-AB3-R Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,302 pcs
4302 pcs On Request 1 On Request On Request 19+ On Request On Request

TL431-AB3-R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Style
Mounting Type
Package / Case
Storage Temperature
Tape & Reel
Temperature Coefficient

TL431-AB3-R Description

Short technical summary and product information.

The UTC TL431-AB3-R is a three-terminal adjustable shunt voltage reference with a typical temperature coefficient of 50ppm/°C. The output voltage can be set to any value between VREF (approximately 2.5V) and 36V using two external resistors. It features a low dynamic output impedance of 0.2Ω, ensuring stable regulation. The device can sink current from 1mA to 100mA, making it suitable for a variety of applications including voltage monitoring, power supply regulation, and precision reference circuits.

 

The TL431-AB3-R is offered in a SOT-89 surface-mount package, supplied in tape and reel packaging with a standard quantity of 2000 pieces. It is designed for operation over an ambient temperature range of -40°C to +85°C, with an absolute maximum junction temperature of +150°C. The part is lead-free as indicated by the 'K' in the part number. For reliable performance, the recommended operating conditions include a cathode voltage up to 36V and cathode current between 1mA and 100mA.

TL431-AB3-R Quick Information

Product Type: Adjustable Shunt Voltage Reference
Series: TL431K
Canonical Name: UTC TL431-AB3-R Adjustable Shunt Voltage Reference
Subcategory: Shunt Voltage Reference

TL431-AB3-R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

TL431-AB3-R Features

  • Programmable output voltage from 2.5V to 36V.
  • Low dynamic output impedance of 0.2Ω typical.
  • Sink current capability from 1mA to 100mA.
  • Typical temperature coefficient of 50ppm/°C.
  • Surface-mount SOT-89 package, lead-free.

TL431-AB3-R Applications

  • Used in precision voltage reference circuits.
  • Ideal for power supply regulation and monitoring.
  • Suitable for adjustable shunt regulator designs.
  • Applied in battery chargers and voltage adapters.

TL431-AB3-R FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage range of the TL431-AB3-R?

The output voltage is programmable from 2.5V to 36V.

What is the operating temperature range?

The operating ambient temperature range is -40°C to +85°C.

What package is the TL431-AB3-R available in?

It is available in a SOT-89 surface-mount package.

What is the sink current capability?

The sink current capability is 1mA to 100mA.

What is the typical temperature coefficient?

The typical temperature coefficient is 50ppm/°C.

What is the dynamic output impedance?

The typical dynamic output impedance is 0.2Ω.

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