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- Bourns, Inc. has been leading the electronics industry in the design, manufacture and sale of electronic components and integrated solutions since its inception in 1947 by Marlan and Rosemary Bourns. As an industry innovator, Bourns targets product development at high-growth industries such as computers, telecommunications, automotive and portable electronics.


AMM20B Multiturn Rotary Position Sensor

Image of Bourns Inc's AMM20B Multiturn Rotary Position Sensor

Bourns model AMM20B non-contacting, multiturn, rotary position sensor meets the specifications of heavy-duty applications. Learn More

Circuit Protection

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Bourns delivers the most comprehensive line of circuit protection technology and solutions in the industry. Learn More

Magnetic Products

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Bourns provides a broad array of magnetic components and solutions to meet a variety of application needs. Learn More

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Newest Products View All (74)

Bourns Sensors and Controls

Sensors and Controls

Bourns positions sensors, potentiometers, & encoders are available at Digi-Key. Large in-stock inventory of Bourns sensors & controls ship same day.

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Image of Bourns' Model SA Series Miniature Thermal Cutoff (TCO) Devices

Model SA Series Miniature Thermal Cutoff (TCO) Devices

Bourns' Model SA surface-mount series of miniature, resettable thermal cutoff (TCO) devices are ideal for battery cell protection applications.

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Image of Bourns' MF-RG PPTC resettable fuses

MF-RG PPTC Resettable Fuses

The MF-RG product family offers circuit protection solutions for applications in the automotive, data server, and industrial electronics industries.

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Image of Bourns' 100 Millimeter Slide Potentiometers

100 Millimeter Slide Potentiometers

Bourns introduces their model PSP01 and PTL01 100 millimeter slide potentiometers in continuing support of the professional audio and professional lighting markets.

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Image of Bourns' Model RLB0913 Radial Lead Inductor Series

RLB0913 Radial Lead Inductor Series

Bourns model RLB0913 radial lead inductor series is ideal for DC/DC converters, power supplies, output chokes and EMI/RFI filter applications.

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Image of Bourns' Single-Turn Trimming Potentiometer

Model PVG3 Series SMD Sealed Type Single-Turn Trimming Potentiometer

Bourns announce the model PVG3 series SMD sealed type single-turn trimming potentiometer which comes in two different pin styles.

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Tools & Support

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Technical Library

Bourns’ comprehensive library of design notes, white papers, application notes, technical articles and product guides and catalogs provide in-depth technology information to support your application development needs. Learn More

Image of Bourns Inc's PortNote™ Solutions/Design Kits

PortNote™ Solutions

For your convenience, Bourns offers a variety of PortNote™ solutions and design kits. Learn More

Product Training Modules View All (23)


Power Transient Voltage Suppressor Diodes

Duration: 35 minutes

Use Bourn's bidirectional PTVS diodes to protect electronic equipment from damages from high energy transients on AC and DC power lines.

AMS22B Single-Turn Magnetic Position Sensor

AMS22B Single-Turn Magnetic Position Sensor

Duration: 10 minutes

Saves repair and maintenance costs and provides a reliable and longer lifetime solution compared to traditional contacting single-turn potentiometers.

FW Series Fusible Wirewound Resistors

FW Series Fusible Wirewound Resistors

Duration: 10 minutes

Unique fusing characteristics of the FW Series allow the resistor to act like a fuse and open, providing applications with protection from inrush current.

EMS22 Non-Contacting Magnetic Encoder

EMS22 Non-Contacting Magnetic Encoder

Duration: 5 minutes

A non-contacting magnetic encoder able to produce quadrature, direction/step, absolute, or pulse-width modulation output signals saving costs and space.

Featured Videos View All (15)

Bourns CSS Series | Digi-Key Daily

The Bourns Model CSS series is a range of high-powered current sense resistors that are available in both 2-terminal and 4-terminal options.

Bourns Komatsulite Mini-Breakers | Digi-Key Daily

Bourns Komatsulite Mini-Breakers are designed for lithium polymer and prismatic cell batteries. Ideal for smart phones, notebooks, and other mobile devices.

Bourns Video Series – Communication Solutions

Bourns line driver protection solution includes the new Bourns® TISP4G overvoltage protector, specifically-designed G.Fast transformers, and a large family of Bourns® Gas Discharge Tubes.

Bourns PortNote USB Design Kit | Digi-Key Daily

Bourns PortNote USB power delivery protection solution and design kit (PN-DESIGNKIT-57) shows how Bourns power inductors, high power PPTC resettable fuses, and 3.3 V and 5.0 V TVS diode arrays all protect the DC bus and high speed data lines.

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