Thermistor-Varistors (Page 2)

Mersen is a leader in electrical specialties and graphite-based materials. They provide sophisticated graphite products for the semiconductor fab process. They have power electronics components like cooling devices, busbars and semiconductor fuses.

Mersen – Materials and Electrical Technologies

They offer advanced materials for extreme industrial environments. These are like graphite, reactive metals, ceramics and polymers. They also manufacture polysilicon used in photovoltaic panels and have products and solutions for semiconductor fabrication.

Their products contribute to the safety and reliability of products like motors and generators which are important inn the areas of Energy Generation and Distribution.

Surge protection components

History – 1950 Le Carbone Lorraine takes over the worldwide distribution of products for Ferraz, an industrial fuse manufacturer based in Lyon.

Ferraz Shawmut – Power Components (now part of Mersen)

Industrial fuses, circuit protection, power interconnection, thermal management used in areas of power quality, power conversion, industrial controls.(Earlier Record in delabs)

Since 1994, Ametherm has provided the most reliable and effective inrush current limiting solutions available.

Ametherm – Inrush Current Limiters and Thermistors

They have newly developed the MS 35 Series Inrush Current Limiters that are capable of handling up to 900 joules of energy and 50 amperes of steady state current. This will be a useful component to consider for power electronics engineers in the design of power supplies and inverters.

Protect An Inverter From Inrush Current

A common failure of inverters is overloading the inverter due to inrush current . This is due to the fact that most inverters are designed with a minimum amount of resistance to increase their efficiency and minimize losses due to heat.

Ametherm - Inrush Current Limiters and Thermistors

Surge-Gard Inrush Current Limiters

NTC Thermistors – Negative Temperature Coefficient (NTC) thermistors are thermally sensitive semiconductor resistors which exhibit a decrease in resistance as absolute temperature increases.

SURGE-GARD Inrush current limiting devices have specially formulated metal oxide ceramic materials. These devices are capable of suppressing high inrush current surges.

(AMETHERM Acquires SURGE-GARD Inrush Current Limiter Product Line from Measurement Specialties – October 1st, 2013)

Ametherm, Inc
961 Fairview Carson City Nevada 89701, USA

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.

Manufacturers of discrete semiconductors like diode rectifiers, transistors, and optoelectronics and even some ICs. Brands- BCcomponents, Dale. General Semiconductor, Spectrol, Sprague, Telefunken.

The passive electronic components like resistors, capacitors, inductors, sensors, and transducers are also in the main section of thier product portfolio.

Vishay – Discrete Semiconductors and Passive Components

“In the 1950s, patents were issued for the PhotoStress products developed by Dr. Felix Zandman. These products reveal and measure stress distribution in airplanes, cars, and other structures under live load conditions. …..

Dr. Zandman, with the financial support of Alfred P. Slaner, founded Vishay in 1962 to develop and manufacture Bulk Metal foil resistors. The Company was named after the village in Lithuania ……..” Vishay History

PowerPAK SC-75 - Vishay Mosfet

PowerPAK SC-75 Mosfet – Vishay

Gives designers ultra-low on-resistance and ultra-small size in one device for saving power in space-constrained handheld applications

Ultra-Low On-Resistance and Size. low on-resistance, N-channel RDS(on) as low as 19 mΩ, P-channel RDS(on) as low as 25.5 mΩ.

Ultra-thin profile, down to 0.6 mm, Single and dual n- and p-channel versions available, including devices with on-resistance ratings down to 1.2 V.