Bourns

What Bourns does

Bourns, Inc. is a privately held, US-incorporated electronic components manufacturer founded in 1947 and headquartered in Riverside, California. The company designs, manufactures, and sells a broad portfolio of passive electronic components organized across seven principal product categories: circuit protection (Multifuse PPTC resettable fuses, ChipGuard ESD suppressors, TBU high-speed protectors, IsoMOV hybrid protection, varistors, GDTs, TVS diodes), magnetic products (power inductors including the SRP series for DDR5 memory, planar transformers, common-mode chokes, PFC chokes, BMS signal transformers), resistors (chip, current sense, power, and the acquired Riedon brand of precision wirewound and shunt resistors), potentiometers (including the legacy Trimpot line), sensors (rotary/linear position, chassis level, brake wear, motor position), encoders (contacting and optical), and diodes including SiC Schottky devices. The technology base is analog/mixed-signal passive component engineering — materials science, magnetics design, thick/thin-film processing, and AEC-Q200/QPL qualification — not AI or software.

Bourns serves eleven vertical end-markets including automotive (primary), consumer electronics, medical, military, mobile computing, network communications, industrial & instrumentation, telecommunications, imaging, lighting, and power conversion. Go-to-market is a direct enterprise field-sales motion targeting engineering and procurement contacts, supported by parametric search tools, sample-request workflows, design calculators, technical library content, and active participation in industry tradeshows (PCIM Europe, ATC Shanghai, Yokohama automotive). Pricing is quote-based and confidential; the company operates with multi-year design-in contracts typical of automotive and industrial component supply.

The company is independently owned with no disclosed parent or institutional investor, has a workforce in the 1,001-5,000 range, and operates global sales locations across the United States, China, Germany, and Japan. Bourns has executed five acquisitions (Fultec Semiconductor 2008, Transtek Magnetics 2016, Kaschke Components 2021, Riedon 2023, Rakon 2026) to broaden its passive-component footprint. Major customer validation includes the 2025 General Motors Overdrive Award (one of eight suppliers selected from approximately 20,000 globally). Revenue, ownership structure, and management team details are not publicly disclosed.

Name

Bourns

Legal name

Bourns, Inc.

Website

https://bourns.com

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Bourns, Inc. is a privately held US electronic components manufacturer (founded 1947, Riverside, CA) producing passive components — circuit protection, resistors, sensors, and magnetics — primarily for the automotive, industrial, and consumer electronics markets, with global sales presence across the US, China, Germany, and Japan.

Ownership category

akta.pro rank

Product category

Passive Electronic Components

NAICS

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers (42361)

SIC

Wholesale-Electronic Parts & Equipment, Nec (5065)

akta.pro industry

PRIMARYHDAHANAG

Passive Filters & RF Passives (LC Filters/Diplexers/Baluns/Attenuators)

Hardware, Technology & Telecom/Semiconductors & Electronic Components/Passive Electronic Components (Resistors/Capacitors/Inductors)

Keywords

• Circuit protection components
• Passive electronic components
• Automotive-grade sensors
• Magnetic components manufacturing
• Precision resistor products

Headquarters

HQ city

Riverside

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Electronic Component Sales: Bourns generates revenue through the manufacture and sale of electronic components including circuit protection devices, sensors, magnetic products, resistors, potentiometers, and related products to industrial customers

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Bourns manufactures and sells passive electronic components — including circuit protection devices, magnetic products, resistors, potentiometers, sensors, encoders, and diodes — primarily to OEM and Tier-1 customers in automotive, industrial, consumer electronics, medical, military, and telecommunications markets. The company sells under both its own brand (Bourns, Trimpot, Multifuse, ChipGuard, IsoMOV, POWrFuse, POWrTherm) and acquired brands (Riedon), with most products AEC-Q200 qualified for automotive use. Distribution is direct via field sales and a website that supports parametric search, sample requests, and design tools, with quote-based pricing under multi-year contracts.

Product overview

Bourns is an electronic components manufacturer offering a diversified portfolio of passive electronic components organized into multiple product categories. The core offerings include Circuit Protection (resettable fuses, gas discharge tubes, varistors, TVS diodes, ESD suppressors, TBU protectors, IsoMOV hybrid components), Resistors (chip resistors, current sense resistors, power resistors, and the acquired Riedon™ wirewound/shunt resistor brand), Magnetic Products (power inductors, transformers, common mode chokes including SRP, TLVR, and planar transformer series), Potentiometers (precision and Trimpot® trimming potentiometers), Sensors (automotive position sensors, rotary sensors, linear sensors), Encoders (contacting and optical), and Diodes (TVS, SiC Schottky, power diodes). The company serves automotive, consumer electronics, industrial, medical, telecommunications, and power conversion markets, with products ranging from standard catalog components to AEC-Q200 automotive-qualified and military-qualified devices.

Differentiator

Problem solved

Functional benefit

Brands

• Trimpot: Trimming potentiometers product line
• Multifuse
• SinglFuse
• ChipGuard
• Riedon
• IsoMOV
• POWrFuse
• POWrTherm

Products and services

• Circuit Protection Products Comprehensive circuit protection portfolio including Multifuse PPTC resettable fuses, gas discharge tubes, varistors (MOVs), TVS diodes, ChipGuard ESD suppressors, TBU high-speed protectors, IsoMOV hybrid components, and hybrid protectors for surge, ESD, and overvoltage protection across automotive, industrial, consumer, and telecom applications.
• Resistors Wide range of resistor products including chip resistors, fixed resistors, current sense resistors, power resistors, potentiometers, Trimpot trimming potentiometers, and the acquired Riedon wirewound and shunt resistor lines for industrial, automotive, and precision applications.
• Magnetic Products Comprehensive range of magnetic components including power inductors, transformers, common mode chokes, and wirewound chip inductors for power conversion and signal filtering in automotive, industrial, and high-performance computing applications.
• Potentiometers Precision potentiometers, panel controls, and Trimpot trimming potentiometers for industrial, automotive, and consumer applications.
• Sensors Automotive sensors including rotary position sensors, linear position sensors, chassis level sensors, brake wear sensors, and motor position sensors for vehicle electronics applications.
• Encoders Contacting and optical encoders for industrial, commercial, and automotive position sensing applications.
• Diodes Diode products including TVS diodes, diode arrays, power TVS diodes, rectifier diodes, and silicon carbide (SiC) Schottky barrier diodes for power and protection applications.
• Connectors Connectors and modular contacts for telecommunications and networking applications.
• LED Shunt Protectors LED shunt protectors (LSPs) for protecting LED lighting circuits from overvoltage conditions.
• Surge Protective Devices Surge protective devices for protection of electrical and electronic equipment from transient voltage surges.
• Miniature Switches Miniature snap action microswitches for industrial and consumer applications.
• Thermal Cutoff Devices (TCOs) Thermal cutoff devices and mini-breakers for overtemperature and overcurrent protection in electronic systems.
• Heaters Ceramic PTC thermistor heaters for heating applications in various industrial and consumer products.
• IGBTs Insulated Gate Bipolar Transistors for power switching applications in industrial and automotive systems.
• Guitar Pots Potentiometers specifically designed for musical instrument applications, particularly electric guitars.
• Pro Audio Professional audio products including potentiometers and encoders designed for audio equipment applications.
• Pro Lighting Professional lighting products for stage and architectural lighting applications.
• Bourns Model TFOS30-1-150T Thick Film on Steel Resistor AEC-Q200 compliant automotive-grade thick film on steel resistor designed for high-power and high-temperature applications.
• Bourns TLVR1005T and TLVR1105T Series Power Inductors TLVR (Trans-Inductor Voltage Regulator) inductors designed for high-speed voltage regulation in power conversion applications.
• Bourns SRP2512CL and SRP3212CL Series Shielded Inductors Compact shielded inductors engineered for DDR5 memory modules, enhancing power delivery efficiency for AI and high-performance computing systems.
• Bourns SRP Series Shielded Power Inductors Shielded power inductors designed for DDR5 memory modules, delivering low resistance, high current handling, and minimal EMI for AI and high-performance systems. Recognized with EE Awards Asia 2025 in the discrete component category.
• Bourns Model 15290x Series PFC Chokes Low-parasitic, high-current PFC (Power Factor Correction) chokes designed to optimize efficiency in power factor correction systems.
• Bourns Model HVMA03F40C-ST10S Flyback Transformer AEC-Q200 compliant automotive-grade 3 Watt flyback transformer for isolated power supply applications in automotive electronics.
• Bourns Model SM91803AL BMS Signal Transformer Next-generation AEC-Q200 compliant automotive-grade BMS (Battery Management System) signal transformer for electric vehicle applications.
• Bourns BVRA Series Automotive Varistors AEC-Q200 compliant automotive-grade low-voltage varistor series delivering fast, compact surge protection for automotive electronics.
• Riedon Precision Wirewound Resistors High-stability, tight-tolerance wirewound components for demanding industrial and precision applications, acquired by Bourns in April 2023 and sold under the Riedon brand.
• Riedon Industrial Shunt Resistors Model RS, RSH, RSI, RSJ, RSK, RSN and RSW series shunt resistors for current sensing in industrial applications, sold under the Riedon brand acquired in April 2023.
• Riedon Industrial Fuse Blocks Model CFB, FB, NFB and NFB2 series fuse blocks for industrial power distribution and circuit protection, sold under the Riedon brand acquired in April 2023.
• Riedon Power Resistors High-performance power resistor series supporting demanding power and sensing applications for industrial and automotive circuits, sold under the Riedon brand acquired in April 2023.
• Riedon High Pulse Braking Resistors High-density transient voltage suppressors delivering robust protection for automotive and industrial circuits in braking applications, sold under the Riedon brand acquired in April 2023.
• Bourns MH1608A Series AEC-Q200 Ferrite Beads Automotive-grade high current chip ferrite bead family designed for high-frequency noise suppression in space-constrained automotive power supplies, with 1.6 x 0.8 x 0.8 mm package, 30 to 1000 ohm impedance at 100 MHz, and up to 5 A rated current.

Quantifiable outcome

• Selected as one of only 8 suppliers from approximately 20,000 GM suppliers globally for 2025 Overdrive Award

Named customers1 record

Segments11 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core, pending acquisition and major acquisition.

• ArrowcoreStrategic or Co-development Partner · 4 April 2026Arrow collaborated with Microchip, Bourns, and Amphenol to develop the REF_SPE_T1S reference design platform for Single-Pair Ethernet, featuring Microchip's LAN8670 10BASE-T1S PHY, Amphenol's IEC 63171-6 compliant SPE connector, and Bourns' integrated magnetics solution combining isolation transformer and common-mode choke.
• MicrochipcoreStrategic or Co-development Partner · 4 April 2026Microchip collaborated with Arrow, Bourns, and Amphenol to develop the REF_SPE_T1S reference design platform for Single-Pair Ethernet, featuring Microchip's LAN8670 10BASE-T1S PHY.
• AmphenolcoreStrategic or Co-development Partner · 4 April 2026Amphenol collaborated with Arrow, Microchip, and Bourns to develop the REF_SPE_T1S reference design platform for Single-Pair Ethernet, featuring Amphenol's IEC 63171-6 compliant SPE connector.
• Rakonpending acquisitionOthers · 19 January 2026Bourns expressed intention to acquire all outstanding shares and employee share rights of Rakon, a New Zealand-based company, for NZ$1.55 per share in cash, indicating strategic intent to expand capabilities or market presence.
• Riedon Inc.major acquisitionOthers · 17 April 2023Bourns acquired the assets of Riedon Inc., a California-based resistor manufacturer, to expand its resistors product line and enhance offerings in high growth markets. The acquisition added thick-film, thin-film, wire-wound, and shunt resistor technologies to Bourns' portfolio.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Vishay Intertechnology: US-listed manufacturer of discrete semiconductors and passive components including resistors, inductors, capacitors, and circuit protection — directly overlapping with Bourns's portfolio across resistors, magnetics, and protection devices serving industrial and automotive customers.
• Murata Manufacturing: World's largest passive electronic components manufacturer — particularly MLCC capacitors, inductors, EMI filters, and circuit protection — directly comparable to Bourns in magnetics, EMI filtering, and automotive/industrial components.
• TDK Corporation: Japanese passive components and sensor manufacturer with strong positions in inductors, transformers, EMC components, and automotive sensors — closely comparable to Bourns's magnetics, sensors, and AEC-Q200 portfolio.
• Yageo Corporation: Taiwanese merchant manufacturer of passive components (resistors, capacitors, inductors) — direct competitor in standard and precision resistors and inductors serving industrial and automotive markets.
• Littelfuse: US-listed specialist in circuit protection (fuses, TVS diodes, GDTs, varistors, PPTC) — directly comparable to Bourns's ChipGuard, IsoMOV, Multifuse, SinglFuse, and POWrFuse protection product lines for automotive, industrial, and telecom.
• Würth Elektronik: German manufacturer of electronic components including EMC components, power inductors, transformers, and circuit protection — directly comparable to Bourns's magnetics, transformer, and protection portfolio for industrial and automotive customers.
• AVX Corporation: KYOCERA-owned manufacturer of passive electronic components (multilayer ceramic capacitors, tantalum capacitors, circuit protection, connectors) — directly overlapping with Bourns's capacitors, circuit protection, and connector lines.

Broad incumbents

• Panasonic Industry (Electronic Components): Broad passive components portfolio including capacitors, resistors, inductors, and circuit protection for automotive and industrial — broader incumbent with overlapping product lines but a much wider portfolio across many component categories.
• TE Connectivity: Large-scale connectivity and sensor manufacturer serving automotive and industrial — overlaps with Bourns's sensor portfolio (position, brake wear, motor position) and connector lines, though TE's portfolio is substantially broader than passives.

Emerging players

• Stackpole Electronics: US-based manufacturer of passive components focused on resistors (chip, through-hole, current sense, wirewound) — niche competitor most directly relevant to Bourns's resistor portfolio including the acquired Riedon wirewound/shunt lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Bourns
• YouTubeyoutube.com/user/bournsvideos
• Facebookfacebook.com/pages/Bourns/242605875800377
• LinkedInlinkedin.com/company/bourns-inc-
• Instagraminstagram.com/bourns

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A5 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bourns