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| The latest information on Electrical &
Electronic Components
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August 7, 2008
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Top Stories
1. Fabricating Nanowire Circuits
2. Fused Tantalum Capacitors Evade Short Circuits
3. Atom-Sized Wires Keep Moore's Law Alive
Featured Content
1. Substation Explosion
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Fabricating Nanowire Circuits
Semiconductor nanowires are easily synthesized in large quantities
using inexpensive chemical methods, but reliability and stability elude
current strategies for their assembly. By incorporating spin-on glass
technology, the students and professors of the University of Jena have
developed a reproducible, high-volume and low-cost method to integrate
directly onto silicon.
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Fused Tantalum Capacitors Evade Short
Circuits
The new TAW series fused tantalum capacitors from AVX protect
against short circuit failure by using an internal fuse connected in
series. When the fuse exceeds its current limit, the capacitor
fail-safes by removing itself from the circuit. This could mean the
difference between total circuit loss and a slight degradation in
performance.
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Atom-Sized Wires Keep Moore's Law
Alive
Moore’s Law just got a new lease on life from Professor Michelle
Simmons of the Australian Centre for Quantum Computer Technology.
Simmons modified a scanning probe microscope to lay down a string of
phosphorus atoms encased in silicone, creating the world’s smallest
wire. This tiny wire opens the door to a string of possibilities in
circuit and transistor development.
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Substation Explosion
This is probably not the best thing to see if you’re in charge of
clean-up or damage control. An electrical transformer shorts out in a
bright display. The light show is followed by an explosive finale that
engulfs the entire substation.
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Optical components
The 2008 Best Sellers catalog showcases the company's best-selling
and most-popular items, as well as new optical products including the
just-released Techspec Aspherized Acromats, ReflX Reflective Objectives,
Telecentric and Large Format Imaging Lenses, and Kinematic Optical
Mounts.
The 263-page book covers such areas as fiber components, mechanics,
lasers, electro-optics, imaging, machine-vision electronics,
illumination, targets, microscopy, magnifiers, and testing.
More Information:
Edmund Optics
Inc.
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FREE eBOOK FROM NYE LUBRICANTS
 Reduce
connector problems simply by applying the right lubricant to contacts.
Learn how connector lubricants protect contacts from corrosion, fretting
and wear to ensure long, trouble-free operation by downloading the FREE
eBook from Nye Lubricants. Get important tips on the factors to consider
in selecting and applying connector lubricants in applications ranging
from cars to machine tools to appliances to aerospace equipment.
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Servodrive delivers 5 kW of continuous
power
The miniature Guitar servodrive delivers up to 5 kW of continuous
power and 70 A peak current.
The PCB-mounting unit provides servo performance, networking, and
intelligent capabilities with a high-level programming environment. The
Guitar operates in position, velocity, and current modes and contains a
wide range of feedback and I/O options.
Additional features include use of company’s SimplIQ core
motion-control technology, ultrahigh power density, CANopen networking,
vector-control sinusoidal commutation, and advanced filtering and
velocity-gain scheduling. The Guitar operates with a single dc bus of 11
to 195 Vdc with built-in smart controls that supply backup
capabilities.
More Information:
Elmo Motion Control
Ltd.
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Slotted optical switch
The OPB420 Series slotted infrared optical switch is for noncontact
interruptive object sensing. The switch has an infrared LED and
phototransistor housed in a right-angle plastic package that lets an
opaque object block the light beam from multiple directions, including
the X, Y, and Z axes.
Features include an 880-nm-wavelength infrared LED with a 100-mW power
dissipation, 50-mA maximum forward current, 1.7-V (If
= 20 mA) maximum forward voltage , and reverse 2-Vdc voltage with
reverse current of 100 μA (Vr = 2.0 V). The output
phototransistor has 24 and 30-V collector-emitter voltages and 100-mW
power dissipation. The device operates at −40 to 85°C.
More Information:
TT electronics, Optek
Technology
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Click Here for a list of archived Machine Design
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Minco Flexible Heaters Design Guide
Order a FREE Flexible Heaters Design Guide to learn how flexible heaters
can benefit your design. Also get tips on selecting the right heater for
prototyping. Get your copy today: www.minco.com/heaterguide
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