About Us

Cooper Bussmann Coiltronics brand magnetics specializes in standard and custom solutions offering the latest in state-of-the-art low profile high power density magnetic components. In working closely with the industry leaders in chipset and core development, we remain at the forefront of innovation and new technology to deliver the optimal mix of packaging, high efficiency and unbeatable reliability.

Our designs utilize high frequency, low core loss materials, new and custom core shapes in combination with innovative construction and packaging to provide designers with the highest performance parts available on the market.

Market-Driven Products

Cooper Bussmann Coiltronics brand magnetics is the first choice in power inductor and transformer solutions to the ever-changing Digital Home, Office and Mobile electronics world. In support of this market, we specialize in inductors and transformers for DC-DC power conversion and switch-mode applications requiring high frequency.

Our component solutions can be found in many products requiring power conversion including cellular telephones, digital cameras, MP3 players, notebook and desktop computers & peripherals & LCD displays across the Consumer, Communication, Computer, Industrial and Automotive markets.

Standard Products

Cooper Bussmann Coiltronics brand product line of power magnetics continually expands to satisfy shifts in technology and related market needs. Categories of Standard Products include:

Minature Power Inductors

Shielded Drum Inductors

Low Profile Shielded Drum Inductors

Unshielded Drum Inductors

High Current Inductors

Common-Mode Inductors

Toroidal Inductors

Transformers

Custom Magnetics

Custom-Engineered Capabilities

Inductors and Transformers for DC/DC Converters and Off-Line Switch Mode Power Supplies
(To 200 Watts at voltages up to 450Vac [640 Vdc] and Frequencies from 20Khz to 10Mhz)

Custom SMT Inductors and Transformers

Cooper Bussmann Coiltronics brand products can provide you with custom designs from print through manufacture. Our design Engineers can take your designated specifications or help you determine what the specifications should be. Either way, we’ll get you the right power magnetic solution to your design challenge.

The Cooper Bussmann Electronic Fuse family offers fail-safe circuit protection devices in SMD, Thru-Hole, and traditional Ferrule Fuse packages.

CHIP™ Fuses (0603FA & 3216FF Series)

Cooper Bussmann's patented Solid Matrix CHIP™ fuses provide reliable overcurrent protection to secondary circuits found in mobile phone handsets, battery packs, digital still cameras, PDA's, HDD's, printers, notebook computers, televisions, automotive instrument panels, battery packs, and more. Its excellent cycling characteristics, small footprint, and SMD package provide the most effective, reliable overcurrent protection solution for today's - and tomorrow's - technologies.

Telecom Circuit Protector (TCP Series)

Cooper Bussmann is proud to be the first to offer a surface mount telecom circuit protector designed to protect against power cross faults and comply with surge requirements for the telecom industry. Today, you will find the TCP Series fuse in central office subscriber line interface cards, basestations, set-top box modems, and xDSL modems among other applications.

BRICK™ Fuses (6125FA/TD & 1025FA/TD Series)

The Cooper Bussmann patented BRICK™ fuse series provide the excellent inrush withstand capabilities in a space saving SMD package needed in many of today's more demanding applications such as power supplies, base stations, televisions, computers, white goods, and motor control circuits among others.

SR-5 & SS-5 Series Radial Leaded Fuses

Cooper Bussmann is bringing the space-saving SR-5 and SS-5 family of radial leaded fuses to the global market to provide cost-effective primary circuit protection in space-constrained applications such as power adapters, televisions, handheld consumer products, white goods, and more.

IEC & UL Electronic Fuses

In addition to SMD and Thru-Hole Device Fuses, Cooper Bussmann offers a full range of traditional electronic fuses designed to IEC standards (5mm product line) and UL standards (1/4" product line). Both product lines offer a cost-efficient overcurrent protection solution for a wide range of applications including power supplies, white goods, motor control equipment, and set-top boxes. Coupled with one of Cooper Bussmann’s extensive fuse accessories product offerings, these fuses can be convenientlyinserted into a circuit while allowing for end-user replacement if desired. And with Cooper Bussmann’s expansive global distribution, your customers will have easy access to ensure safe, reliable, correct replacement parts available when needed.

Electrical Fuses

Cooper Bussmann brand power fuses are the industry leader for your more demanding power applications.

From the innovative CUBEFuse product line – offering touch-safe, current-limiting fusible protection – to the time-honored Fusetron product line with class-leading time-delay performance, Cooper Bussmann fuses set the standard for motor and branch circuit protection. And now, with easyID™ technology available with the CUBEFuse and Low-Peak product lines, reliable permanent open fuse indication for reduced downtime and maintenance costs.

For more delicate semiconductor drive applications, Cooper Bussmann High Speed fuses provide rapid response to damaging short circuits keeping your investment safe from damages. And look no further than the Cooper Bussmann Telpower brand fuses for protection of critical telecommunication infrastructure.

PolySurg™ ESD Suppression Devices

Cooper Bussmann PolySurg™ ESD Suppressors are bi-directional ESD overvoltage protection devices that respond in less than 1ns and can protect against a threat voltage up to 15kV per IEC standard 61000-4-2. With leakage current of less than 1nA and an ultra low capacitance less than 0.15pF, these devices are an especially viable solution for high data rate applications. With an insertion loss of less than -0.2dB at frequencies up to 6 GHz, the PolySurg™ ESD Suppressors are invisible to the protected circuit, introducing no additional loading or signal distortion.

ESD Protection for High Frequency, Low Voltage Designs

PolySurg™ surface mount devices are ideally suited for ESD protection of data I/O ports, computers and peripherals, media interfaces (DVI and HDMI), mobile communication products, hand-held test equipment and other similar uses.

MLP Series Now Available

The MLP Series, comprised of the 0402ESDA-MLP and 0603ESDA-MLP ESD suppression devices, is now available as discrete devices in an 0402 and 0603 footprint, respectively. This series utilizes Cooper Bussmann’s patented PolyFAMILY design to deliver enhanced ESD protection using state of the art process and material technologies.

The PowerStor family of supercapacitors offers ultra-low resistance supercapacitors, unique high-energy storage devices.

Supercapacitors Extend Battery Life

The PowerStor A series supercapacitors are available in values from 0.47F to 4.7F, 2.5V and offer equivalent series resistance as low as 25mΩ. In remote battery powered applications that have pulse current loads this low ESR can be utilized to prolong battery life.

Low cost battery solutions tend to have high ESR and as a result large amounts of stored energy can’t be used when supplying pulse currents. By combining a supercapacitor in parallel with the battery the overall ESR is lowered and battery life, typically, increased by 300%. For remote applications such as utility meters, weather & river level monitoring and hotel door locks this can dramatically reduce replacement costs.

Offering Environmentally Friendly Alternative to Ni-CD Batteries

The PowerStor B series is available in values from 0.22F to 50F, 2.5V and is fully compliant with the EC RoHS directive. For equipment that is only required for short term use, up to several minutes, and has a local charger the B series offers a realistic alternative to Ni-CD batteries.

ow equivalent series resistance allows the B series parts to be rapidly charged and discharged without damage and low leakage current means they can hold their charge for weeks. Unlike batteries PowerStor supercapacitors have a very long cycle life, over 500,000 cycles, so they won’t need replacing and at end of life there are no recycling or disposal issues.

Supercapacitors Provide Last Gasp Power

The PowerStor P series is available in values from 0.1F to 1.0F, 5V and is ideal for hold-up and bridging power applications. For telecom products such ADSL routers a P series supercapacitor can be used to provide power for a ‘leaving network’ signal after a mains supply failure.

Unlike batteries the P series supercapacitors have a long cycle life, over 500,000 cycles, so they won’t need replacing. In addition to this they have ESR as low as 0.2 Ohms and small package sizes from 0.75 cm³ to 4.7 cm³. All this makes the P series an ideal choice for supporting continued operation during battery swap-out or for controlled shut down after a mains failure.

Providing Power Management Solutions

In addition to a broad range of standard products PowerStor also offer custom solutions for applications such as automated meter reading, PCMCIA cards, handheld electronics, data storage systems and toys.

These products include high integrity capacitor packs that incorporate active voltage balancing and optimized cylindrical components that meet specific customer requirements.

Proven Products for Demanding Applications

For over 50 years, Cooper Bussmann Connectors has delivered proven products with a commitment to quality and superior service for a broad range of electronic OEM applications covering:

• North American-style single row terminal blocks
• European-style terminal blocks — PCB mount (spring, cage, tiered, high current), screwless, and pluggable
• Edge connectors — vertical and right angle mount

Wide Product Application

Our connectors are found in a variety of demanding applications:

• Elevators and conveyors
• HVAC
• Industrial & environmental controls
• Instrumentation
• Lighting ballasts
• Medical Equipment
• Multiple PCB applications
• PC Hardware
• Power supplies
• Process control
• Security and alarm systems
• Telecom
  
• Test and measurement
  
• Traffic signal and controls

Agency Standards

Cooper Bussmann connectors can be specified with confidence. They’re manufactured to prevailing agency requirements and approvals. UL 1059 and CSA 22.2 No. 158 Voltage Ratings These agency approvals meet the need for products sold in North America.,/p>

IEC Compliance

Where needed, our connectors comply with the requirements in IEC Publication 60947-7-1 Terminal for Copper Conductors. These are concurrently recognized and certified under the UL Classification Program. Ratings, except where indicated, are concurrent with UL 1059.

CE

All Cooper Bussmann connectors are CE self-certified for the safety and performance requirements set forth by the European Union (EU) and is required for free movement of product in the European market.