Passive Thermal Technology: Small Solutions for Big Challenges
It’s no secret that electronics systems have provided exponential increases in power and capabilities, along with steady decreases in size and footprint, for designers in applications such as power control systems, industrial drives, radar systems, avionics and many other semiconductor-based systems. Revolutionary increases in power and control have made possible ultra-precise performance in semiconductor devices such as thyristors, insulated gate bipolar transistors (IGBTs), symmetric gate commutated turn-off thyristors (SCGTs), silicon controlled rectifiers (SCRs) and intelligent power modules (IPMs). Perhaps the most impressive and demanding arena for modern electronics is the world of military applications, where electronics must not only operate flawlessly in harsh environments but also meet demanding size, weight and power (SWaP) constraints in current and future generation equipment.

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Stahlin Non-Metallic Enclosures Releases New NW-Series Bonded Window Enclosure
Stahlin Non-Metallic Enclosures has introduced the new NW-Series bonded window enclosures. Stahlin’s NW-Series of non-metallic bonded window enclosures are offered in a range of eight standard size offerings. Additionally, Stahlin offers the capability of creating any modified N-Series enclosure up to a 41 X 33 bonded window and certification by UL/cUL type 1, 3R, 4X, 12 ratings.

Stahlin NW-Series Bonded Window Enclosures meet NEMA 250 Type: 1, 3R, 4X, and 12 standards and feature a temperature range from  -76°F to 266°F. The enclosures also provide a UL94-5V flammability rating plus the assurance of a NFPA No. 101: Flame Spread Class A (1).

The  NW-Series bonded window enclosures are molded from a unique compounding formula, SolarGuard, a patented, non-haloginated fiberglass system. In addition, windows featured in Stahlin NW-Series bonded window enclosures are constructed from abrasion resistant acrylic produced by applying a very hard, highly cross-linked polysilicate coating to a substrate. This coating provides a surface that has 45 times the abrasion resistance of uncoated acrylic.

Electrorack Introduces HydroCool-IT Passive Rear-door Heat Exchanger
Electrorack has launched HydroCool-IT, a passive, water-cooled rear-door heat exchanger designed to cool up to 30 kW per rack, and the fourth in their line of IT cooling products.

HydroCool-IT is a passive solution, which means there are no fans, moving parts or electrical connections required. The system relies on the servers to push the air through the low-resistance coil, cooling the load directly at the heat source. This neutralizes the heat before it has a chance to mix in the room, which can lead to over-cooling or equipment overheating. The rear-door design allows the units to retrofit to existing installations, and typically do not require rearrangement of enclosures. Transition frames attach directly to the enclosure and house the door that contains the heat exchanger. The entire retrofit typically takes less than thirty minutes per rack.

HydroCool-IT works in conjunction with a dedicated chiller or a coolant distribution unit (CDU) that connects to the main building chilled water loop. The CDU creates an isolated secondary cooling loop minimizing liquid volume, and controls water pressure and flow. The CDU utilizes redundant pumps, actuators and control valves to maintain water temperature above the dew point to prevent condensate and eliminate the need for drains. Additional HydroCool-IT rear door heat exchanger units can be added to the CDU as required. Heat removed is routed to the chilled water supply by means of a stainless steel plate heat exchanger within the CDU. The CDU controller provides intelligent monitoring, and interfaces with building management systems and web management tools for the highest reliability.

New LCR COTS Filters Perform in Extended Temperature Range for Increased Reliability
LCR Electronics now offers a line of single phase 300 VAC 50/60 Hz COTS filters for applications as found in the lighting, military and medical industries. Operating over an ambient temperature range of -40°C to +85°C, the Single Stage 0913 filters and Double Stage 0923 filters are used where higher voltages and operating temperature ranges than standard off the shelf filters are required.

The 300 VAC 50/60 Hz EMI filters are available with rated current from 1 A to 40 A for the 0913 filters and 1 A to 30 A for the 0923 filters in both general purpose and low leakage current versions. High potential voltage for both series is 1,450 VDC line-to-line and 2,250 VDC line-to-ground.

Depending on the current rating, insertion loss for the 0913 filters measured in a 50 ohm system for frequencies starting at 50 kHz up to 30 MHz ranges from 5 dB to 52 dB in common mode and 5 dB to 35 dB in differential mode. Insertion loss for the 0923 filters ranges from 5 dB to 80 dB in common mode and 10 dB to 75 dB in differential mode under the same conditions.

New Thermal Circuit Breaker with Rotary Knob Actuator
Schurter’s TA35 thermal circuit breaker series now offers a rotary style actuator. In addition to the classic rocker style, the grip and turn style knob is well suited for applications where a longer feedback is desired, such as those where gloves are used.

The new TA35 rotary switch offers IP 40 protection. The switch and thermal overload protection with positively trip-free release includes current ratings ranging from 0.05 A to 20 A for 1 and 2 pole types, and 0.05 A to 12 A for the 3 pole version. Admissible ambient temperature range is from -30° C to 60° C.

The base unit fits panels ranging from 2 mm to 3 mm in thickness. The bezel and knob snaps on to the front of the circuit breaker, after the base unit is mounted to the panel. Terminals are for 6.3 by 0.8 mm connections. The standard color is black with other design options on request.

Meggitt Sensing Systems Debuts Endevco High-G Shock Accelerometers with Integral Electronics
Meggitt Sensing Systems has launched the Endevco model 7255A, a miniature, lightweight piezoelectric accelerometer with integral electronics. The design and performance characteristics of this model make it well suited for use in near-field, high shock and high-level impact testing applications, where unwanted high frequency signals often mask critical low-level, low frequency data.

Endevco model 7255A incorporates a built-in mechanical filter, which blocks high-frequency energy associated with near-field high shock, and protects the sensing element from overstress. An internal electronic filter prevents saturation. The sensor features a two-wire system with integrated hybrid signal conditioner, which transmits a low-impedance voltage output through the same cable that supplies required constant current power. Signal ground is connected to the inner case of the unit, acting as a shield. Both output and signal ground terminals are electrically isolated from the mounting surface. For lower level shock measurements, a high output version is available. Both versions include internal sensor assembly strain isolation, which reduces strain input due to bending motion on the mounting surface, often found in high shock events. 

Included with Endevco model 7255A are two small gauge hook-up wires for use with the two solder-pin terminal interface. The wire configuration is well-suited for this type of shock sensor, as wires do not exhibit the triboelectric effect under motion. The resultant strain minimization significantly reduces potential for zero shift, and ensures high-reliability and performance.

APC Selects Kepware Technologies to Deliver Data Center Device Communications
Kepware Technologies has been selected as the device communications provider for APC by Schneider Electric. APC’s InfraStruxure  management software portfolio provides data center managers and IT executives the ability to take a holistic view of data center physical infrastructure service quality, end-to-end energy use, facilitate short and long term planning and properly forecast costs.  The vendor-neutral software provides integrations with critical IT support systems, including Schneider Electric’s PowerLogic ION-Enterprise power management, building management and enterprise management, enabling the monitoring, controlling and resolving of issues in a user-friendly environment. 

As part of the solution, APC will use Kepware’s “IT and Infrastructure Suite”  with its InfraStruxure Central platform to deliver OPC interoperability standards, including OPC DA, OPC AE and OPC-UA, ensuring interoperability with as many client applications as possible.  This capability expands the ability to manage all devices supporting the data center. The OPC offering will maintain an OPC Foundation “Certified” status.

InfraStruxure Central provides a way for organizations to monitor their company-wide multi-vendor data center physical infrastructure including power, cooling, security and environment. Real-time monitoring, user-defined reports, graphs and instant fault notification and escalation enable quick assessment and resolution of critical events. This repository of information can be accessed by multiple users from anywhere on the network, creating a consolidated view of the physical infrastructure. The open architecture expands with changing needs through additional device licenses, add-on surveillance and operations modules, and integration with enterprise, power and building management systems.

Laird Technologies Launches Online EMI, Thermal Management and Wireless M2M Solutions Stock Locator
Laird Technologies, Inc. has launched its new online stock locator system for EMI, thermal management and wireless M2M product lines. The online stock locator provides Laird Technologies’ customers an electronic platform to directly access qualified distributors and their inventory through the Lairdtech.com Website This launch completes the integration of the entire Laird Technologies standard product portfolio inventory into the online stock locator system.
 
The system provides a single destination for online users to search the EMI, thermal management and wireless M2M inventory of several select distributors at the same time. The system can identify all Laird products based on partial or entire part numbers, as well as by global region of availability.

The online locator adds ease and efficiency to obtaining Laird Technology’s products. Results from the part number search offer customers several simple options from requesting a quote to, in some cases, the ability to directly purchase the product online from distributors.

XTech Completes ITAR Compliance Program
XTech’s Randolph, Mass. facility has met the stringent requirements of the ITAR Compliance program. Having registered with the Directorate of Defense Trade Controls of the US Department of State, XTech has met stipulations pertaining to organization structure, documentation, corporate policy, training and procedures to independently handle, use and transfer information controlled by the ITAR (International Trade in Arms Regulations) and U.S. Munitions List.

"Complying with the ITAR Compliance Program provides significant value to our customers in the defense and security markets. Defense is a growth segment for XTech, and by investing in regulatory policies and control, we are committed to being a valued supply chain partner to the military and aerospace industries," said Laurie Burger, XTech chief marketing officer.

Coolcentric Opens New Briefing and Demonstration Center
Coolcentric, a new division of Vette Corp, has opened its new state-of-the-art Briefing and Demonstration Center (BDC) in Marlborough, Mass.,. The BDC will be used to showcase to customers, prospects and business partners how Coolcentric’s LiquiCool solutions can be used in a variety of visitor-selected architectures and operating conditions. Based on Vette patents, LiquiCool data center cooling solutions can help data center owners and operators reduce data center cooling costs by 90 percent and reduce white space requirements by 80 percent while allowing a 5x increase in rack compute power. 

Remote 2010 Pre-Conference Workshop
A Vendor-Neutral, Educational Seminar on the First Open Interoperable Wireless Communication Standard for the Process Industries

October 18, 2010 - Dallas, Texas
1:00pm - 4:30pm at the Gaylord Texan Hotel & Convention Center
Register Here - (Free! Space is limited - Pre-registration is recommended)

Learn how this exciting new technology can help lower your operating costs, reduce downtime and move your company from a costly scheduled maintenance strategy to a more cost-effective predictive maintenance strategy.

Topics include:

1. An introduction to wireless technology
2. What WirelessHART technology can do for you
3. An overview of WirelessHART technology
4. Using WirelessHART technology
5. Planning a successful wireless project
6. Live WirelessHART demonstrations

Fee:
There is no charge for the seminar but attendance is limited. Don’t miss this opportunity to learn from the experts about this exciting new technology!  REGISTER TODAY!

June/July 2010 Issue Highlights

• Passive Thermal Technology: Small Solutions for Big Challenges
  
• EMC Solutions for Enclosures and Racks
• Power Supplies Evolve to Meet Military Needs
• Standard, Modified, Configured or Custom Enclosures – It’s Your Choice
• New Products and Services
  
  Download this Issue Here!

July 2010

25-30, IEEE EMC Society Symposium on Electromagnetic Compatibility, Fort Lauderdale, Fla. Contact www.emc2010.org

August 2010

18-19, CoolingZone 10th Annual Business and Technology Summit, Natick, Ma.
Contact www.coolingzone.com/summit2010/

September 2010

12-14, BICSI Fall 2010, Las Vegas, Nev. Contact www.bicis.org

15-17, ICTE 2010 : International Conference on Thermal Engineering, Amsterdam, Netherlands Contact www.waset.org

28-30, Assembly Tech Expo, Rosemont, Ill. Contact www.devicelink.com/expo/atexpo09

IEEE EMC Society International Symposium on Electromagnetic Compatibility
July 25 - 30, 2010
Fort Lauderdale, Florida

The IEEE Electromagnetic Compatibility Society is the world's largest organization dedicated to the development and distribution of information, tools and techniques for reducing electromagnetic interference. The society's field of interest includes standards, measurement techniques and test procedures, instrumentation, equipment and systems characteristics, interference control techniques and components, education, computational analysis, and spectrum management, along with scientific, technical, industrial, professional or other activities that contribute to this field.