Hill Tech at Solar Power – Checkout these interesting Las Vegas facts

Hill Tech at Solar Power International

Hill Tech will be at Energy Storage, co-located with Solar Power International in Las Vegas, NV at Mandalay Bay Convention Center on September 10-13, 2017.

See us at the following booths:

  • SIBA Fuses LLC. Booth #1546
  • HVR Advanced Power Components Inc. Booth #961

Las Vegas “details” you might not know…. While at the Mandalay Bay and Las Vegas see if you notice the following:

1. Do you notice a tropical sweet aroma that fills the air in the Mirage and Mandalay Bay, or the perfume smell in the Venetian. Our understanding is they pump this scent through the air system. Apparently a company called Aroma Systems Inc. manufactures the device which provides this sensory experience for the guests of these resorts, their website mentions their client list.

Sweet aroma of resistors and PV fuses in normal operation

Calm is in the air when you are using the right components


2. In the Chinese culture, the number four is considered bad luck. High-rollers from China are very important to the gambling industry in Vegas. With this in mind, many of the resorts tower floors do not label any of the floors that start with the number four. For example the elevators count 38, 39, 50, 51, 52…

Luck PV fuse and resistors

Your always lucky when using resistors and fuses from Hill Tech








Stop by and see us and let us know if you observed the above Las Vegas peculiarities.

-> Show a Hill Tech representative this image for a FREE for a complementary mini bottle of hot sauce.

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Hill Tech Office LED Conversion

Hill Technical Sales is pleased to announce the completion of an LED retrofit of its main office in Arlington Heights Illinois. Hill Technical Sales, a provider of OEM components for Power, Thermal Management and the Imaging Industry (founded in 1966) was looking for a lighting solution to both reduce energy costs and improve light levels for its office and data center.

Hill Tech took advantage of new LED lighting to increase the light levels and provide a more pleasing working environment by:

  • An improved and appropriate light distribution pattern.
  • Better color temperature and CRI, which increases the ability of the human eye to render color.
  • The removal of the offensive “buzzing” of the old magnetic ballasts.

All this was accomplished while at the same time achieving our primary goal of decreasing energy costs. These energy cost reductions are in both the lighting electricity used and electricity needed for the air-conditioning, because of the wasted heat produced by the old inefficient magnetic ballasts. When the ballasts were removed during the retrofit, they were so hot you could almost “cook an egg on them” one employee commented.
Although the new energy efficient lights will save Hill Technical Sales substantial money on its annual energy bills, another reduction in cost comes from improved maintenance. The facility was still using the old 4 ft. T12 40-Watt Fluorescent tubes which needed to be replaced approximately once per year. Another saving is in the reduction of recurring labor required to replace the ballasts and cracking Bi-Pin Fluorescent Lamp Sockets, to keep the facility lighting in good working order.  Also not to be over-looked is the recycling costs of the failed Fluorescent tubes.

LEDs are a bonus in terms of maintenance savings as they last many more times as long as virtually all conventional lighting solutions (100,000 operating hours or more for LEDs). Total savings on energy and maintenance were estimated to reduce this cost by 25% per year.

The project entailed the one-for-one replacement of 20 existing troffer lights composed of four T12 40-Watt 4 ft. linear Fluorescent tubes each, and eight 50 wall halogen display lamps. Both lighting types were replaced by a superior LED designed for the particular application.

Hill Technical Sales President, Andrew Hill, stated “It’s a virtual no-brainer for us to take advantage of the long-standing and apparent performance improvements of LED lighting”. Below is an image of the project before and after the LED retrofit. Notice there is no perceivable illumination difference; however the colors now appear slightly brighter and sharper:

Step By Step LED retrofit - Hill Tech Sales

Hill Technical Sales is pleased to announce the completion of an LED retrofit of its main office in Arlington Heights Illinois.

Take a look at how the installation proceeded step by step at: LED Lighting Retrofit

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How it works – Ceramic composition resistors

Parts of a Ceramic composition resistors

Ceramic composition resistors are similar in concept to the familiar carbon composition resistor

Ceramic composition resistors are similar in concept to the familiar carbon composition resistor. Both types comprise a solid body of resistive material, and dissipate energy uniformly throughout the component. This is known as a “bulk” material construction.

In film or wirewound types, the resistive material is only a small fraction of the total mass of the component. Bulk construction concentrates most of the component mass into the resistive element. Bulk resistors are inherently non-inductive, and offer high energy density. This bestows the capacity for high peak power, and high reliability in pulsed or surge-prone duty.

Carbon composition resistors have long been recognized for their advantages in pulsed duty, requiring combinations of high peak power or high voltage with low inductance. This is why “carbon comps” have often been the choice for snubbers and inrush limiting applications.

The Ceramic resistor difference is the resistive material, where a high-temperature, electrically conductive ceramic replaces the resin-bonded carbon particles of the earlier type. Since the ceramic dissipates heat more rapidly, higher average power can be tolerated. The high temperature capability of the ceramic allows much more energy density than carbon composition, which means smaller or fewer parts, with resulting better reliability and lowered cost. Ceramic resistor resistors also exhibit better stability under extremes of voltage and temperature. Like other “bulk” resistors, they are non-inductive. This makes them ideal for high frequency applications.

The simple construction, consisting mainly of the conductive ceramic material with bonded metal contacts, is highly reliable. Selection of the proper material from among several options allows the properties to be controlled and tailored to the application. A wide variety of geometries are easily produced, meeting requirements from Hundreds of Joules to Mega Joules.

By Hill Tech
Courtesy of HVR Advanced Power
Location- Arlington Heights IL

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Hill Tech and HVR at the IEEE Energy Conversion Expo ECCE 2016

Please join Hill Tech at the 8th Annual IEEE Energy Conversion & Exposition (ECCE 2016). I will be assisting HVR at their exhibit Booth #411 during the Exposition; hours Monday from 4:00 to 8:00 pm and Tuesday from 11:00 to 5:30 pm.

Two things to know about the IEEE ECCE show
1) You do not have to spend $1000+ to see the exhibits: You can get a FREE pass after 2:00 pm on Tuesday or purchase a $25 Expo Pass at onsite good for both days.
2) Hill Tech in HVR booth # 411 will be providing a unique “Retro Gag Gift” a “Blast” from the past. Note supplies are limited.

Water cooled ceramic resistor assembly

Cold plates on each side of ceramic disks

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Common Mode Inductor Cores for size reduction & increased performance

ARLINGTON HEIGHTS, ILLINOIS, USA, Friday, June 20, 2014: Hill Tech Sales, a leader in Components for Electrical Power Conversion today posted information on Extreme nanocrystalline core materials for EMC noise reduction.

New common mode core material FT-8K50D and FT-3K50T

These materials have come about from advances in casting technique to move from an industry leading 18um thick ribbon to 13um. This reduction in ribbon thickness reduces eddy current losses (most competitors ribbon thicknesses are 20 to 25um) while maintaining high permeability.

Also optimized is the process of applying magnetic field during annealing.  This allows you to use a smaller amount of core volume to provide high suppression performance.

Actual size reduction


Finemet core vs. MN-Zn Ferrite
Size reduction using Finemet core material FT-8K50D and FT-3K50T

In the past one of the complaints with using nanocrystalline cores material for common mode applications was frequency response at higher frequencies. FT-3K50T addresses this issue by increasing the permeability of nanocrystalline cores at higher frequencies; 1 MHz and above, extending high frequency spectrum response by ~40Mhz

Nanocrystalline cores already exhibit extremely high saturation flux densities, however some applications can still benefit from a higher Bsat. FT-8K50D address this request by further enhancing the saturation flux density by ~ 10% to 1.32T, allowing you to use a smaller core.

General material characteristics


Material characteristics FINEMET - FT-8K50DMaterial characteristics FINEMET – FT-8K50D


Standard cores available:

Standard Oval Case Designs are available for higher current bus bar applications


Oval Finemet core for high current bus bar.

Finemet cores shaped in Oval formats for materials, 3KM, FT-8K50D and FT-3K50T

For more questions on this article contact:

Andrew Hill
Hill Technical Sales
220 West Campus Drive / Ste 101
Arlington Heights, IL 60004
Tel: +1- 847-255-4400 ext 12 Fax: +1-847-255-0192

You may also visit: http://www.hilltech.com/


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