Bourns, Inc.

- 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. More...

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. Less...

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Go To Product Training Module Index Page

Digi-Key’s library of more than 1700 exclusive PTM Online… On Demand® product training modules is a collection of training tools created with you – the busy design engineer – in mind. They are provided with the cooperation of participating supplier partners. From this one source, you can learn about the latest products and technologies, download datasheets, check inventory, contact our technical staff, and place an order for same-day shipment.

These modules are available in audio and non-audio formats and listed by supplier in easy-to-find alphabetical order. Simply locate the module that interests you and click on your format of choice. We hope you find these tools useful, and with new modules added continuously, we invite you to stop back often to see what’s new.


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Updated PTM = Updated Product Training Module - PTM        New PTM = New Product Training Module - PTM

Module NamePreviewAudioNon-AudioDurationParts List
  • 2051 Series GDT
1.3MB243KB5 minParts List
New PTM
  • AMM20B Multi-Turn Magnetic Position Sensor
2.7MB561KB10 minParts List
  • AMS22 Position Sensor Overview
2.7MB704KB5 minParts List
  • Current Sense Resistor Overview
2.7MB530KB5 minParts List
New PTM
  • CVH252009 Series Power Chip Inductor
924KB92KB5 minParts List
  • ESD Protection Products
Play6.2MB2.0MB15 minParts List
  • Gas Discharge Tubes
5.8MB1.7MB10 minParts List
  • Magnetic Product Overview
4.4MB1.5MB10 minParts List
  • Multifuse® MF-RM series of PPTC Resettable Fuses
3.3MB794KB10 minParts List
  • Multifuse® Resettable fuses
Play3.7MB700KB15 minParts List
  • Power Resistor
2.6MB302KB10 minParts List
  • Power Transient Voltage Suppressor Diodes
Play8MB4MB35 minParts List
  • Rotary Position Sensor - Model 3382
1.6MB300KB5 minParts List
  • SinglFuse™ Thin Film Chip Fuses
2.6MB851KB10 minParts List
  • SRN Series: Semi-Shielded Inductors
2.9MB1.2MB10 minParts List
  • T Series Fast Acting Gas Discharge Tubes
4.5MB1.5MB10 minParts List
  • Thick Film PWR263S-20 Power Resistor
1.7MB396KB5 minParts List
  • Transient Blocking Units
3.2MB590KB10 minParts List
  • Transient Current Suppressors
4.2MB1.3MB5 minParts List

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AMM20B Multiturn Rotary Position SensorAMM20B Multiturn Rotary Position Sensor - Bourns® model AMM20B non-contacting, multiturn, rotary position sensor meets the specifications of heavy-duty applications requiring long cycle life and high reliability. This multiturn rotary sensor features a 1/4" diameter shaft with a 3/8" diameter bushing containing bronze sleeve bearing. Additional features include 12-bit resolution, and a factory programmable electrical angle that can be set from 1080 to 3600 degrees.  More...

AMS22U Analog Rotary Position SensorAMS22U Analog Rotary Position Sensor - Bourns® model AMS22U non-contacting analog rotary position sensor meets the specifications of heavy-duty applications requiring long cycle life and high reliability. This single-turn rotary sensor features an 1/8" diameter shaft supported by dual ball bearings and a servo mount configuration. This sensor has a factory programmable electrical angle that can be set from 10 to 360 degrees.  More...

Helpful Tools

Bourns Website
What's New at Bourns?
Part Number Cross Reference Tool
Data Sheet Search
Technical Library
Quality Certifications

Product Information

Resistive Products
Circuit Protection Products
Diodes
Magnetic Products
Sensors & Controls
Switches
Transistors & Thyristors
Fixed Resistors Selection Guide

Brochures and Catalogs

Corporate
Bourns® Product Profile Brochure
Bourns® RoHS Roadmap
Bourns® Date Code Summary

Chip Diodes
Brochures & Catalogs
Diode Short Form Catalog
ESD Protection & Impulse Protection Short Form Catalog
Application Notes
Chip Diode Application Note
Designer’s Guide to Chip Resistors, Chip Diodes & Power Chokes for Power Supplies & DC-DC Converters

Chip Resistors & Arrays
Brochures & Catalogs
Chip Resistors & Arrays Short Form Catalog
Application Notes
CAT16-PC5F12LF Application Note
CRL Application Note
Use of the Low Ohmic Resistor CRA2512 in Inverter Drives Application Note

ChipGuard®
Brochures & Catalogs
ChipGuard® Short Form Catalog
ESD Protection & Impulse Protection Short Form Catalog
Application Notes
Protecting High-Speed Communication Ports

Gas Discharge Tubes
Publications
First Principles of a Gas Discharge Tube (GDT) Primary Protector
GDT Protection Solutions for ADSL and ADSL+2 Solution

Inductive Components
Brochures & Catalogs
Inductive Component Solutions
JW Miller® Magnetics Catalog
Application Notes
Bourns® Product Inductors for Industrial Applications

Linear Motion Potentiometers
Application Notes
Linear Motion Potentiometers Applications Note
Linear Motion Potentiometers 3046 & 3048 Application Note

Modular Contacts
Application Notes
Bourns® Trimpot® 70AA Modular Contacts

Multifuse® PPTC Resettable Fuses
Brochures & Catalogs
Bourns® Multifuse® Resettable Fuses – Polymer PTC & Ceramic PTC Short Form Brochure
Bourns® Multifuse® Automotive Short Form Brochure
Application Notes
Resettable PTC Thermistors for Medical Equipment
Resettable PTC Thermistors for Industrial Protection
White Papers
Preventing Component Circuit Damage from Above Range Current with Reliable Overcurrent Protection

Networks
Brochures & Catalogs
Resistor Networks Short Form Catalog
Application Notes
Use of the Low Ohmic Resistor CRA2512 Inverter Drives
Designer’s Guide to Chip Resistors, Chip Diodes & Power Chokes for Power Supplies & DC-DC Converters
Automotive, Industrial & Instrumentation Application Note
Current Regulation and Circuit Protection using Low Ohmic Chip Resistors

Power Resistors
Brochures & Catalogs
Bourns® RF Power Resistors Short Form
Bourns® Power Resistors Short Form Brochure
Application Notes
CHF Range of Power RF Terminations
PWR220 Series Application Note
General Application Note – PWR Series Power Resistors

SinglFuse™
Brochures & Catalogs
Bourns® SinglFuse™ Short Form Brochure

Switches
Brochures & Catalogs
Bourns® Switch Selection Matrix

Telecom Circuit Protection
Brochures & Catalogs
Bourns® Solutions for Telecom Short Form Brochure
Telecom Circuit Protection Selection Guide
Application Notes
Reference Design: Protecting Legerity Subscriber Line Interface Circuits (SLICS) with Bourns® TISP® Protector Products
Reference Design: Protecting Silicon Laboratories ProSLIC Family in Telephony Applications with Bourns® Circuit Protection Products
Protecting Ethernet Solutions Against Lightning Disturbances
Technical Articles
GR-1089-CORE, Issue 4: Equipment Port Types
GR-1089-CORE, Issue 4: Agreed, Integrated and Embedded Primary Protection

Transient Blocking Units
Brochures & Catalogs
Bourns® TBU™ High-Speed Electronic Current Limiter Short Form Brochure
Application Notes
Generator Interface Protection
Cell Phone Base Station Protection Application

Trimmers
Brochures & Catalogs
Trimpot® Product Catalog
Consumer Trimmer Short Form Brochure
Sealed SMD Cermet Trimming Potentiometers Short Form Brochure
Bourns® Sealed Through-Hole Cermet Trimming Potentiometers Short Form Brochure
Trimmer Primer
The Potentiometer Handbook
Application Notes
TC33B Application Note
Multiturn vs. Single-Turn Application Note
Security Housing Application Note
Hearing Aid
Effects of Setting the Wiper at End Set on Cermet Resistors
Inductive Proximity Switch
Bar Code Scanners
More about Bourns

About Bourns

Mission

Bourns' goal is to satisfy customers on a global basis while achieving sound growth with technological products of innovative design, superior quality and exceptional value. We commit ourselves to excellence, to the continuous improvement of our people, technologies, systems, products and services, to industry leadership, and to the highest level of integrity.

History

More than sixty years ago co-founders Marlan and Rosemary Bourns set up shop in their tiny 384 square-foot garage in Altadena, California. Their idea to provide a method of accurately determining an aircraft's pitch attitude solved a crucial problem for pilots. The invention of the first miniature linear motion and vane position potentiometers propelled their tiny business into a global corporation, manufacturing a range of products that impact almost every aspect of today's electronics industry.

From its earliest days, Bourns established a benchmark for quality, value, and innovation. In 1952, Bourns patented the world's first trimming potentiometer, trademarked Trimpot ®. Bourns' dedication to excellence ensures continuous improvement of its products and services to satisfy customer requirements on a global basis.

The company, with worldwide headquarters in Riverside, California and nine other facilities around the world has continued growing through acquisitions and start-ups. Product lines now include precision potentiometers, panel controls, encoders, resistor/capacitor networks, chip resistors/arrays, inductors, transformers, resettable fuses, thyristor-based overvoltage protectors, line feed resistors, gas discharge tubes, telephone station protectors, 5-pin protectors, industrial signal, irrigation and petroleum protectors, CATV coax protectors, signal data protectors, indoor and outdoor POT splitters, network interface devices, and integrated circuits.

Bourns, Inc. serves a broad range of markets, including telecommunications, computer, industrial, instrumentation, automotive, consumer, audio, and medical.
Follow Bourns

2012 
June Bourns Acquires Assets from Jensen Devices AB, Stockholm, Sweden
May Erik Meijer Promoted to President, Bourns Electronics
March Bourns Receives the 2011 TTI North America Supplier Excellence Award at the Highest Platinum Level
February Bourns Automotive Division Expands Mexican Manufacturing Plant
January  Bourns Announces New Options to its Industry-Leading Line of Guitar Potentiometers
 
2011   
November  Bourns Adds 19 New Documents to its Successful PortNote® Solutions Series
October  Bourns Introduces Non-Contacting Rotary Position Sensor
September  Bourns and Magnachip Announce Volume Ramp of TBU® Series of High-Speed Circuit Protection Devices
August  Bourns Introduces Two New Industrial-Grade Panel Control Models
August  Bourns Announces Availability of Two New Evaluation Boards for RS-485-based Applications
July  Bourns Receives Prestigious Bosch Supplier Award
July  Bourns to Host Renowned Guitar Technicians Dickson and Kelly in Summer NAMM Booth
May  Bourns Announces Combined Torque and Angle Sensor for Electric Power Assisted Steering Applications (EPAS)
April  Bourns Announces its Lowest Resistance Battery Strap Resettable Fuse
March  Bourns Expands the Series of Useful Design Documentation on Port Interface Circuit Protection
February  Bourns Announces New Line of Shunt Protectors Designed Specifically for Sensitive LED Lighting Applications
February  Bourns Announces Industry's First ECL Designed to Tolerate AC Mains Power Contact without Damage
January  Bourns Announces Three New Pro Audio Amplifier Potentiometer Design Kits
January  Bourns Releases Five New Instructional Pro-Audio Application Videos
January  Bourns Announces Four New Components for the Design and Assembly of Professional Audio Equipment
 
2010 
December  Bourns Named Preferred Supplier by the Bosch Group
November  Bourns Announces New Multiturn Precision Potentiometer Slip Clutch Option
October  Bourns Announces Audio/Video Potentiometer and Encoder Enhancements at 2010 AES Convention
September  Bourns Announces Circuit Protection TBU® Series that Features a Broad Range of Trigger Currents and Voltages
August  Avnet and Bourns Mark 45-year Milestone
August  Bourns Consolidates North American Automotive Division at New, World-Class Facility in Auburn Hills, Michigan
June  Bourns Announces Industry's First ECL Triggered By Excessive Voltage or Current
June  Bourns First to Develop Simplified One-Page Documentation Series on Port Interface Circuit Protection
June  Bourns Announces New Product Updates to its Innovative Line of Guitar Potentiometers
May  Bourns Awarded 2009 Resistor/Capacitor Commodity Supplier of the Year by Rockwell Collins
April  Bourns Introduces High Current Power Inductors with Advanced Flat Wire Technology for Use in DC/DC Converters
April  Bourns Europe Receives 2009 TTI Supplier Excellence Award
April  Bourns Asia-Pacific Awarded 2009 TTI Supplier Excellence Award
March  Bourns Integrates Two Polymer Positive Temperature Coefficient Resettable Fuses into a Single Package
March  Bourns Announces New Transient Voltage Suppressor Diodes for Surge and ESD Protection Applications
March  Bourns Adds New Ultra-Low Capacitance Thyristor Surge Protectors to its TISP® Product Line
March  Bourns Announces Circuit Protection Solution for Generator Low-Voltage Control Interfaces
March  Bourns Awarded 2009 TTI Supplier Excellence Award
January  Bourns Announces New Options to its Professional Audio/Video Potentiometers and Custom Series of Guitar Potentiometers
January  Bourns Announces Enhancements to its Industry-Leading Line of Guitar and Audio Potentiometers at 2010 NAMM Show
PortNote Solutions

Bourns® PortNote® Solutions provide engineers with a simplified design starting point for selecting the appropriate circuit protection solution for a specific port interface. Bourns PortNote Solutions include precise information on relevant compliance standards, the optimal Bourns solution with part numbers, an interface schematic, alternative solution references, and corresponding design kits containing sufficient Bourns products to prototype five of the circuits designated in the PortNote Solution.

Datacom
CAN-bus - Surge Protection
Ethernet - ESD Protection
Ethernet - Power Over Ethernet (PoE) PD Solution
Ethernet - Power Over Ethernet (PoE) PSE Solution
IEEE 1394B - Firewire / iLink Protection
RS-485 - Serial Port - ESD / EFT / Surge Protection
SATA HDD Interface - Data and Power Protection
USB 2.0 - ESD and Overcurrent Protection
USB 3.0 - ESD and Overcurrent Protection
Datacom Design Kits
PN-DESIGNKIT-26
PN-DESIGNKIT-1
PN-DESIGNKIT-34
PN-DESIGNKIT-35
PN-DESIGNKIT-25
PN-DESIGNKIT-22
PN-DESIGNKIT-28
PN-DESIGNKIT-3
PN-DESIGNKIT-32

Audio/Video
DisplayPort 1.2 - ESD and Overcurrent Protection
HDMI 1.3 - ESD and Overcurrent Protection
HDMI 1.4 - ESD and Overcurrent Protection
HD-SDI / SDI - Coaxial Port
LVDS - Input Port - Surge Protection
LVDS - Output Port - Surge Protection
Satellite Receiver RF Input - Surge Protection
Thunderbolt™ Port - ESD and OC Protection
VHF/UHF - Coaxial Port - ESD Protection
Audio/Video Design Kits
PN-DESIGNKIT-31
PN-DESIGNKIT-11
PN-DESIGNKIT-12
PN-DESIGNKIT-27
PN-DESIGNKIT-15
PN-DESIGNKIT-16
PN-DESIGNKIT-37
PN-DESIGNKIT-33
PN-DESIGNKIT-5

Telecom
ISDN
RJ11 Fax/Modem (FXO)
RJ11 SLIC Protection - GR-1089-CORE Dual Supply Voltage
RJ11 SLIC Protection - GR-1089-CORE Negative Voltage Tracking
VDSL - Driver Side Protection
VDSL - Line Side Protection
VDSL - VDSL Over POTS
Telecom Design Kits
PN-DESIGNKIT-10
PN-DESIGNKIT-8
PN-DESIGNKIT-7
PN-DESIGNKIT-20
PN-DESIGNKIT-36
PN-DESIGNKIT-18
PN-DESIGNKIT-19

Lighting and Batteries
LED PWM Dimmer - PWM / Power
Li-ion Battery Controller Protection - Overcurrent and ESD Protection
Lighting and Batteries Design Kits
PN-DESIGNKIT-29
PN-DESIGNKIT-30
Analog Devices and Bourns EMC compliant RS-485 interface design tool
Analog Devices and Bourns EMC compliant RS-485 Interface Design Tool
Analog Devices and Bourns have partnered to extend their offering of system oriented solutions by co-developing the industry’s first EMC compliant RS-485 interface design tool that provides up to Level 4 protection levels for IEC61000-4-2 ESD, IEC61000-4-4 EFT, and IEC61000-4-5 surge.
Bourns, Inc.
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