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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.
Bourns established a benchmark for the quality, value and innovation of its products and services early in the Company’s history with the 1952 introduction of the Trimpot® line. This was the world’s first patented trimming potentiometer. Bourns dedication to excellence ensures the continuous improvement of its products and services to satisfy customers on a global basis. Bourns philosophy is founded upon product quality, dependable delivery and the best overall value for its worldwide customers. In addition to maintaining global manufacturing and customer support capabilities, Bourns invests heavily in the development of technologies and the expansion of its manufacturing capabilities to meet customers’ changing needs. Through this continuous investment, Bourns drives the trend toward component miniaturization. The Company’s commitment to quality is demonstrated in its manufacturing operations, which meet QS 9000 and ISO 9001/2000 certifications.
Bourns sells a broad range of passive components, including trimming potentiometers, overcurrent protection devices, sensors, modular contacts, resistive networks, switches, encoders, panel controls, linear motion potentiometers, dials, precision potentiometers, inductive components, chip resistors and chip resistor arrays, and more. In addition, our Circuit Protection offering continues to expand to include thyristor surge protectors, resettable and telecom fuses, gas discharge tubes, line protection modules, chip diodes and ESD protection products. Outside Plant products include central office, station and multi-stage protectors as well as network interface devices (NIDS) and digital subscriber line (DSL) products. More recent product line additions include DC/DC converters, microelectronic modules, specialty resistors and power semiconductors.
Bourns model AMM20B non-contacting, multiturn, rotary position sensor meets the specifications of heavy-duty applications. Learn More
Bourns delivers the most comprehensive line of circuit protection technology and solutions in the industry. Learn More
Bourns provides a broad array of magnetic components and solutions to meet a variety of application needs. Learn More
Shielded Power Inductors
Bourns' SRR1050A, SRU1063A, and SRU8045A series shielded power inductors are automotive grade AEC-Q200 qualified and for low-noise operating environments.
High-Power Current Sense Resistors
Bourns Model CSS series of high-power current sense resistors are available in both 2-terminal and 4-terminal options.
G.Fast CPE Protection PortNote® Solution
Bourns' G.Fast CPE protection PortNote solution provides protection for the CPE side of G.Fast signal without impairing the signal reliability.
SMD Power Inductor Design Kits
Bourns offers its six AEC-Q200 qualified SMD power inductor design kits; the SDE-A-LAB1, SRR-A-LAB1, SRR-A-LAB2, SRU-A-LAB1, SRP-A-LAB1, and SRP-A-LAB2 series.
Mini-Breaker (Thermal Cutoff Devices) Design Kits
Bourns offers five Komatsulite mini-breaker (thermal cutoff device) design kits including the HC series, LC series, KCA series, and NR series mini-breaker.
CRT-AS Series Sulfur-Resistant Thin Film Precision Chip Resistors
Bourns' CRT-AS sulfur-resistant thin film precision chip resistors are designed to operate in harsh environments exposed to high levels of sulfur contamination.
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
For your convenience, Bourns offers a variety of PortNote™ solutions and design kits. Learn More
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
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
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.
AMS22U Non-Contacting Magnetic Sensor
Extremely versatile sensors with high accuracy and resolution to meet the demands of applications with harsh working environments and long life expectancies.
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 – G.fast Communication Solutions
Bourns G.fast 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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