Passives

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

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Schott Magnetics designs and manufactures custom and standard inductors, transformers, coils, toroid magnetics, chokes and custom designed magnetic components.

Schott Magnetics – Inductors Transformers Coils

Cost effective transformers and inductors for the power supply, avionics, military, medical, test & measurement, industrial, automotive and commercial applications.

History – “Schott began as a part-time home business in 1946 by its founder, Oscar A. Schott. Due to Oscar’s unique talents in electrical engineering, many companies approached Oscar to build prototype transformers and coils. In 1951, Schott became a full time corporation.”

SMU1330 Series Drum Core Inductors

SMU1330 Series Drum Core Inductors

High energy storage and low resistance, Ideal for DC-DC step-up or step-down conversion, Reliable surface mounting, flat top for pick and place.

Schott Sales and Engineering
210 St. Olaf Ave, N. Canby, MN 56220, USA.

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These are surface mount resistors, the Resistive Element is Thick Film on Alumina Substrate. We can get Voltage Ratings upto 600 Volts and 50 Gigohms Values. Low noise high stability resistors.

Specialized in the design and manufacturing.of thick film, high voltage, high precision resistor . High voltage resistors and high value resistors.

Ohmcraft – Thick Film Resistors

SM Chip Resistors go to values in giga-ohms. The Technology – Micropenned serpentine patterned resistors, engineered for ultra precision.

SM Series High-Value Resistors - Ohmcraft

SM Series High-Value Resistors – Ohmcraft

“Our patented Micropen precision printing technology provides ultra precision, thick-film high ohmic value, surface mount resistors. Ohmcraft’s Micropenned serpentine patterned resistors produce superior electrical characteristics:”

Ohmcraft ia a division of Micropen Technologies Corporation
93 Paper Mill St., Honeoye Falls, NY 14472

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Nippon Chemi-Con. Products multilayer ceramic capacitors, film capacitors, metal oxide varistors, choke coils, optomechatronics and Aluminum electrolytic capacitors.

Aluminum Electrolytic Capacitors – Nippon

New Technologies – Hgh capacity electric double layer capacitors and newly designed decoupling device Proadlizer. Electric Double Layer Capacitor (EDLC) or SuperCapacitor.

They have a range of Supercapacitors upto 2500F at 2.5V and Modules like 400F at 15V. There are two types Prismatic and Cylindrical. In comparison to batteries, multi-million cycles of charge-discharge is possible.

DLCAP - Electric Double Layer Capacitor - Nippon

DLCAP – Electric Double Layer Capacitor – Nippon

Another feature is the high current charge-discharge ability, useful in many Industrial and Automotive Applications. A high charge-discharge efficiency makes an output efficiency of around 95% possible. These capacitors have become an useful part of Alternative Energy Electronics and Energy Harvesting. They also have applications in Electric and Hybrid Vehicles.

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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.