Passives

Resistors, Capacitors, Inductors, Magnetics, Varistors, Thermistors.

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Electronic Components Distributor, provides premier passives and electromechanical parts including hard to find parts. TTI, Inc., a Berkshire Hathaway company, is a specialty distributor of passive, interconnect, electromechanical and discrete components.

TTI – Passive and Electromechanical Components

“TTI, Inc. is the world’s leading authorized distributor specialist offering passive, connector, electromechanical and discrete components.”

Sensor Technology Resource Center

Product line includes: resistors, capacitors, connectors, discretes, potentiometers, trimmers, magnetic and circuit protection components.

Sensor Technology Resource Center

The sensors TTI distributes meet the needs for optical, temperature, humidity, motion, position and a host of other variables. Across a wide range of sizes, shapes and power requirements,

TTI, Inc.
2441 Northeast Parkway, Fort Worth, TX 76106-1816, USA.

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Electronic components, materials and power supplies to factory automation systems, anechoic chambers, test systems and more.

TDK – Electronic components and Materials

TDK was founded in Japan on 7 December 1935 to manufacture iron-based magnetic material ferrite, which had been recently invented by Yogoro Kato and Takeshi Takei. In 1952 they began production of magnetic tapes, with compact cassette tapes following in 1966; it is for these that the company is most widely noted

TDK - Electronic components and Materials

TDK Museum

Through videos and practical demonstrations, the museum introduces how TDK’s products and technologies, centered on our strength in ferrite and “magnetism”, have played a role in the evolution of society and how TDK will be involved in the coming future society in an easy-to-understand, enjoyable, and experiential manner.

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KEMET’s product line includes surface-mount capacitors in aluminum, ceramic and tantalum and leaded capacitors in ceramic and tantalum.

Kemet Corporation – Capacitor Technologies

Broad selection of capacitor technologies in the industry across all dielectrics, along with an expanding range of electromechanical devices, electromagnetic compatibility solutions and super capacitors.

The name “KEMET” is a blend of the words “chemical” and “metallurgy.”

“…..Fortunately for KEMET, Bell Laboratories had also invented the solid tantalum capacitor, which complemented the use of low-voltage transistors (semi-conductors) in electrical circuits. Since Union Carbide had experience in the fields of high-temperature metals and alloys, the solid tantalum capacitor was chosen as KEMET’s “new product”.

High Voltage C0G FT-CAP

High Voltage C0G FT-CAP

The HV C0G FT-CAP is ideal for a broad range of high voltage applications in which high volumetric efficiency and resistance to thermal and board stress are critical.

It offers low leakage current, exhibits low ESR at high frequencies and finds conventional use as snubbers or filters in applications such as switching power supplies and lighting ballasts. Their exceptional performance at high frequencies has made them a preferred choice of design engineers worldwide.

KEMET Corporation
2835, KEMET Way, Simpsonville, SC 29681, USA.

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Riedon has been providing original equipment manufacturers with high-precision, wirewound resistors and committed customer service since 1960.

Wirewound, Thick & Thin Film, and also Foil resistive products used in industries such as Industrial Automation, Aerospace, Military and Instrumentation.

Riedon – High Precision Resistors

Custom RTD elements, Power resistors as heating elements. Compensation Resistors, Metal and Thick Film networks and arrays.

Riedon - High Precision Resistors

These Precision Shunt Resistors are designed for systems which have a fast changing electrical load. It has a Heatsink and is encapsulated in epoxy. The substrate is Alumina for Good Heat Transfer but with Electrical Insulation. It is a Resistor formed by a NiCr Foil. (Like Nichrome).

Precision Resistors – UNS 4-T220 – Riedon

Specifications

  • Resistance from 0.2 Ohm to 80 Ohms
  • Power Rating to 15 Watts
  • Resistance Tolerances to ±0.01%
  • TCR to ±1ppm/K
  • Load Stability to 0.01%

Resistors are probably the most common and well known of all electrical components. Applying a resistor to a circuit normally requires (1) calculating the nominal values needed in the circuit application (resistance, power rating, etc.) then (2) developing acceptable tolerances for the resistor that ensure it will function properly in all extremes of the application.

Read up the “Temperature dependence and TC” – The absolute ohmic value of a resistor is temperature-dependent. Also the “Definition of terms in the specifications of Resistors.”

Riedon Inc
300 Cypress Avenue Alhambra, CA 91801, USA

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Development and production of high-grade resistors and special products, including the production equipment.

SRT Resistor Technology and Passives

High Value Resistors in Thick film technology is a Specialization. Products include precision and power resistors, special Ceramic Chip Capacitors, Temperature Sensors and other High Grade Passive Electronic Components.

SRT Resistor Technology and Passives

High Voltage in Small Size

In the expansion of the existing types of High Value and High Voltage resistor series, SRT is presenting at electronica 2006 under the designation HVR25 a leaded resistor, which has a working voltage of 15kV at a length of only 25mm.

By means of an optimized design for high working voltages, SRT has succeeded in realizing at this length and a width of 9 mm this improved version of High Voltage resistors. Compared with the type HVR30 with 30mm length, the working voltage could be increased by 5kV and the Voltage Coefficient (VCR) reduced by about 50%.

SRT Resistor Technology GmbH
Ostlandstrasse 31, 90556 Cadolzburg, Germany.

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They develop and manufacture soft magnetic components and materials. These are used in the Products in Power Electronics and RF Communications. A leading world supplier of precision, high permeability magnetic components and materials to the electronics industry.

MAGNETICS – Ferrite and Powder Cores

Product line include powder cores, ferrite cores, and strip wound cores for applications such as chokes, inductors, filters and transformers.

Learn More about Ferrite Cores

Made from MnZn, ferrite cores offer economical solutions for high frequency power transformers and inductors, EMC filters, and other applications.

MAGNETICS - Ferrite Cores - Powder Cores

Ferrites are dense, homogenous ceramic structures made by mixing iron oxide with oxides or carbonates of one or more metals such as zinc, manganese, nickel or magnesium.

Ferrite ETD Cores

ETD cores are an economical choice for transformers or inductors. ETDs offer a round centerpost for minimum winding resistance. Dimensions are optimized for power transformer efficiency. Typical applications of Magnetics ETD cores include differential mode inductors and power transformers.

MAGNETICS a division of Spang & Co

Magnetics Technology Center
110 Delta Drive Pittsburgh, PA 15238-0428, USA.

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CWS provides full service from design, prototyping, pre-production run to volume production. They are experts in designing and manufacturing of magnetic components such as inductor, choke, coil and transformers. These magnetics are designed with ferrites, iron powder, MPP, sendust or high flux cores in all shapes and sizes.

CWS – Magnetics Coils Inductors Transformers

  • EMI / RFI, Inline Filters, Chokes
  • Power Magnetic
  • Inductors and Differential Mode Chokes
  • Electromagnetic Interference (EMI) Device
  • Power Line Reactor Coil
  • Antenna Coils

CWS - Magnetics Coils Inductors Transformers

Custom Design –

At CWS we understand that that common inductor coil or chokes need to be customized in order to provide top performance within a circuit. Our designers and engineers can provide the technology needed to ensure your coil can combat EMI issues and also interference with other circuits.

CWS Coil Winding Specialist
353 West Grove Ave Orange, California 92865