© Semiconductor Components Industries, LLC, 2018

July, 2018 − Rev. 8

1

Publication Order Number:

LM431SA/D

LM431SA, LM431SB,

LM431SC

Programmable Shunt

Regulator

Description

The LM431SA / LM431SB / LM431SC are three−terminal the

output adjustable regulators with thermal stability over operating

temperature range. The output voltage can be set any value between

These devices have a typical dynamic output impedance of 0.2

W.

Active output circuit provides a sharp turn−on characteristic, making

these devices excellent replacement for zener diodes in many

applications.

Features

(Typical)

Temperature Range

Compliant

ORDERING INFORMATION

Product Number

Output Voltage

Tolerance

Operating

Temperature

Package

LM431SACMFX

2%

−25 to +85

_C

43A

□

SOT−23FL 3L

Tape and Reel

LM431SACM3X

43L

◎

SOT−23 3L

LM431SACM32X

43G

◎

SOT−23 3L

LM431SBCMLX

1%

43B

SOT−89 3L

LM431SBCMFX

43B

□

SOT−23FL 3L

LM431SBCM3X

43M

◎

SOT−23 3L

LM431SBCM32X

43H

◎

SOT−23 3L

LM431SCCMLX

0.5%

43C

SOT−89 3L

LM431SCCMFX

43C

□

SOT−23FL 3L

LM431SCCM3X

43N

◎

SOT−23 3L

LM431SCCM32X

43J

◎

SOT−23 3L

LM431SAIMFX

2%

−40 to +85

_C

43AI

SOT−23FL 3L

LM431SBIMFX

1%

43BI

SOT−23FL 3L

LM431SCIMFX

0.5%

43CI

SOT−23FL 3L

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specification Brochure, BRD8011/D.

1. SOT−23 and SOT−23FL have basically four−character marking except LM431SAIMFX. (3 letters for device code + 1 letter for date code)

SOT−23FL date code is composed of 1 digit numeric or alphabetic week code adding bar−type year code.

www.onsemi.com

SOT−89

CASE 528AH

1

1

2

3

SOT−23FL

CASE 419BD

SOT−23

CASE 318BM

1

2

3

1. Ref

2. Anode

3. Cathode

1. Cathode

2. Ref

3. Anode

M32

1. Ref

2. Cathode

3. Anode

M3

1. Cathode

2. Ref

3. Anode