Shielded
Power
Inductors
Coilcraft's (Cary, IL) new
MLC75xx Series of shielded, high-cur-rent power inductors have soft saturation characteristics
that make them suitable for VRM/VRD designs and
other applications with occasional overcurrent requirements. Features include:
• Isat ratings up to 59.2 A.
• A DC resistance down to 1.2 m.
• A measurement of 7.0 x 7. 5 mm.
• A max height of 4. 2 mm.
Why Would I specify?
• The MLC75xx Series inductors are constructed of
proprietary materials that are not subject to thermal
aging issues associated with other iron powder core
inductors.
• Coilcraft offers the series in 7 inductance values
ranging from 0.10 to 2. 17 µH.
• The inductors feature RoHS compliant tin-silver
(96.5/3.5) over copper terminations and offer a maximum reflow temperature of 260°C.
www.coilcraft.com
Silicon Carbide XY Air-Bearing Stage
Aerotech (Pittsburgh, PA) has developed the PlanarHDX, a commercially available planar air-bearing platform for semiconductor manufacturing and test and inspection. Features include:
• Directional gain scheduling.
• Iterative learning
control.
• Harmonic cancellation.
• An ETM
(enhanced
throughput module)
option.
• Passive or active isolation systems.
• Speeds to 1.5 m/s.
• Accelerations to 5 g.
Why Would I Specify?
• The PlanarHDX structural elements were designed using an
advanced silicon carbide ceramic with a specific stiffness (elastic
modulus/density) 5 times higher than aluminum and a coefficient of
thermal expansion approximately 5 times lower.
• Using proven air-on-air preloading in critical bearing elements
improves turnaround and settling times over vacuum-preloaded
designs.
• A proprietary reaction-mass design reduces stage-induced forces in
the step-axis that are transferred to the isolation system or customer’s structure. By minimizing the dynamic forces, move-and-settle
time is reduced and process throughput is increased.
www.aerotech.com
Reverse Displacement Motor
Danfoss (Ames, IA) has expanded on its Reverse Displacement Motor (RDM). The open circuit
piston motor offers reverse circuit functionality without external valves offering a hydraulic system
solution for mobile equipment applications. Features include:
• A 12 or 24 V integrated proportional shifting valve.
• A speed sensor option.
• Increased displacements.
Why Would I Specify?
• The RDM enables customers to achieve up to 10% power savings, a 15% average
reduction in total system cost, and reduced system complexity.
• The reverse functionality of the RDM enables the fan to purge trapped dirt and debris, restoring cooling efficiency. Additionally, the
fan drive packages can be tuned to meet the cooling requirements of Tier 4 equipment applications.
• The simplified design of the RDM eliminates the external valves and pressure supply required in typical reversing solutions and eliminates the cost and pressure losses associated with them.
www.powersolutions.danfoss.com
Digital Multimeters
Saelig Company, Inc. (Fairport, NY) recently released
its Siglent SDM3045X – a 4 ½ digit dual-display digital
multimeter suited for high-precision, multifunction, and
automation measurement applications. It features a combination
of basic measurement functions with multiple math and display
choices, as well as special features like a histogram, trend
chart, bar chart, statistics, hold measurement, and more.
• Front panel features a 4. 3” (480 x 272) high-resolution color
TFT-LCD display that clear shows the 60,000-count readings
• Reading at up to 150 readings/second
• Housed in an 11. 6” x 10. 3” x 4. 3” prop-stand case
• SDM3045X weighs 8.3 lbs
Why Would I Specify?
• SDM3045X DMM will make measurements of True-RMS
AC voltage and AC current, resistance to 10 megohms,
capacitance to 10,000 microfarads, continuity and diode
tests, frequency and period measurements, and temperature,
with support for thermocouple and RTD sensors
• EasySDM software allows for easy PC connectivity, external
control, and display
• Contains 1 GB of Flash memory for storage of configuration
and data files
• Supports USB external storage
www.saelig.com
Voice Coil Actuator
BEI Kimco (Vista, CA) introduced a new
moving magnet voice coil actuator with a flexure
design that ensures high alignment accuracy
by preventing unwanted shaft rotation. The new
VCA provides long life and is ideally suited
where extreme precision is required, such as in
medical equipment, laboratory instrumentation,
clean rooms, low-outgassing, and aerospace
applications.
• Delivers a peak force of 11. 9 N
• Provides continuous stall force of 0.7 N
• Package measures just 36.00 mm x 30.00 mm
and weighs 0.22 lbs
High-Performance Ball Grid Array Sockets
Ironwood Electronics (Eagan, MN) recently introduced its new
high-performance ball grid array socket for 1 mm pitch, 121 pin BGA
integrated circuits. The SG-BGA-6457 socket is designed for a
12x12 mm integrated circuit package size. It operates at bandwidths
up to 27 GHz with less than 1dB of insertion loss. The contact
resistance is typically 20 milliohms per pin.
• Socket connects all pins with 27 GHz bandwidth on all connections
• Socket is mounted on the target printed circuit board with no
soldering
• Construct with open-top lid for access to the center of the IC
package
• Capacitance to ground is 0.01 pF
• Current capacity is 2 amps per pin
Why Would I Specify?
• Works with devices like 121BGA, 12 mm square package with
11x11 array and 1 mm pitch
• Constructed with high-performance and low-inductance elastomer
contactor
• Comes with ball guide for the precise alignment of BGA balls to
printed circuit board pads
www.ironwoodelectronics.com
Why Would I Specify?
• Incorporates a shaft with flexures at both ends of travel that
support the moving magnet field assembly
• Characteristics attributed to the flexure design
are the elimination of friction and side-loads at non-vertical angles, unwanted
particulate accumulation caused from
bearing/bushing shedding, and its
inherent ability to return the magnet to
mid-stroke when re-energized
• Accuracy is limited only by the user’s
encoder for feedback
www.beikimco.com
