Electronics Protection - July/August 2013 - (Page 20)
New Silver Conductive, One Part Aqueous Based
Sodium Silicate System for EMI/RFI Shielding
Master Bond’s new
MB600S is an aqueous
based sodium silicate
formulated for coating applications where
electromagnetic interference/radio frequency
shielding is required. The
energy emitted from
various sources, including
radios and appliances, can interfere with other electronic devices.
Conductive coatings are often applied to the housings in order to
protect the devices from these types of interferences. This silver
gray colored system is used in a variety of aerospace and electronic applications.
Tested according to IEEE 299, 2006 methods, MB600S was as
effective as the aluminum reference with a range of 95 dB to 105
dB, from 100 MHz to 2 GHz. Above 2 GHz, the shielding effectiveness of MB600S decreased to 80 dB and slightly below. Above 4
GHz, the effectiveness was 60 to 70 dB.
As the system is water based, it is relatively non-toxic and easy
to handle. It can be brushed or sprayed with the proper equipment. If sprayed, the shielding effectiveness would be even greater
than the values given above.
MB600S will cure at room temperature in 24 to 48 hours or in
one to two hours at 80°C. It features high temperature resistance
with a service temperature range of 0°F to 700°F. The compound
is available in glass jars, and has a shelf life of six months in original, unopened containers at room temperature.
Agilent Technologies’ 3D Electromagnetic
Software Release Targets EMI Compliance
Inc. has released the latest
(EMPro), its 3-D electromagnetic simulation software.
EMPro 2013 helps design
engineers identify and resolve
interference (EMI) problems.
It also offers a number of
new capabilities to reduce
simulation time and increase
EMPro 2013 allows engineers to simulate the radiated emissions of electronic circuits and components and then determine
whether these emissions are within levels specified by common
electromagnetic compatibility (EMC) standards, such as FCC Part
15, CISPR 22 and MIL-STD-461F. This capability is enabled by new
specification-compliance templates, as well as several enhancements to both EMPro’s finite element method (FEM) and finite
difference time domain (FDTD) simulators.
“With more electronics being integrated into smaller packages, EMI problems are quickly becoming a leading cause of new
product delays,” said Marc Petersen, EMPro product manager at
Agilent EEsof EDA. “As a result, designers are now turning to EM
simulation to catch these problems early and ensure their designs
are compliant with EMI specifications. Our newest EMPro software
release provides designers the capabilities they need to address
this challenge head on.”
EMPro 2013 has several new enhancements including a simulation management tool for launching remote and distributed simulations on high-end servers and compute clusters, disconnecting
and later reconnecting a client computer and receiving status updates on a mobile device, increased FEM mesh performance and
robustness for large designs, new FEM hybrid boundary conditions
that result in higher simulation speed and accuracy. Additional
features include a real-time electrical connectivity checking tool
in the main geometry modeling window that prevents inadvertent
gaps between conductors, a parameterized trace component for
modeling IC and printed circuit board interconnects, and numerous graphical user interface enhancements, in the areas of snapping, bending, length measurements, results display and managing
large groups of objects.
Redesigned Select-A-Shield USB Forensic Pouch
Provides High RF/EMI Performance
Select Fabricators, Inc. is enhancing its USB Forensic Pouch, making
it a high performing “Faraday bag”
for the market. PAMS tested at 900
MHz, the pouch delivers more than
-80 dB of RF/EMI isolation. Well
suited for digital forensic evidence
collection, this window touch pouch
allows for hands-on manipulation of
wireless devices in a secure RF tight
environment. With the filtered USB
connection, there is no need to take
the captured device back to the lab
to extract stored data.
The Select-A-Shield USB Forensic pouch can be purchased
separately or as a complete portable forensic pouch kit. The
standalone pouch (RFSP1218) includes a foam insert, cables and
convenient and visible evidence collection cards. The mobile
forensic kit (RFSP1218K) includes all of the above, plus a durable
royal blue sport nylon carry bag that allows usage in all types of
conditions including inclement weather.
All Select-A-Shield RF isolation pouches are made in the USA
starting with two layers of conductive silver/copper/nickel material
with a double rollover closure to insure a tight isolation capacity.
The conductive material and closure system will maintain shielding
performance for hundreds of uses.
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Table of Contents for the Digital Edition of Electronics Protection - July/August 2013
Electronics Protection - July/August 2013
Newer Technology Releases Next-Generation Power2U AC/USB In Wall Charging Solution
Subzero Engineering Introduces PolarXpress DCiM SaaS Monitoring Solution
Specifiers of Enclosures for Components in Outdoor Applications: Be Aware of Material Selection Issues
Formable Phase Change Materials as Latent Heat Sinks for Portable Electronic Devices
How to Protect Electronic Circuits from Power Surges
Diamond Heat-Spreaders: Growth Methods and Applications
Standards-Based Design & Electronic Packaging Solutions
Reducing Room-Level Bypass Airflow Creates Opportunities to Improve Cooling Capacity and Operating Costs
Harnessing Laboratory Wind Tunnels
New DVR Enclosure with Prepackaged Thermoelectric Cooler
New Silver Conductive Aqueous Based Sodium Silicate System for EMI/RFI Shielding
Citizen and MechaTronix LED Cooling Cooperate On New Generation CitiLED COB’s
Eaton Expands 5P UPS Product Line to Provide Efficient Protection for Any IT Environment
Flex-Block System Puts Free-Standing Enclosures on New Footing
Gore Introduces Acoustic Vent for Protecting Electronic Devices
Calendar of Events
Electronics Protection - July/August 2013