Low-Viscosity Plastic

BASF Corp., Wyandotte, MI, introduced Ultrason® P 2010 low-viscosity polyphenylsulfone for large, complex-shaped components that is available in transparent and opaque. In processing raw material, energy consumption and component weight can be reduced. The tool also fills up at lower injection pressures and processing temperatures. It features high chemical resistance, hot steam sterilization at 134 °C, inherent fire resistance, and resistance to combinations of aggressive cleaning agents and disinfectants, water, and extreme heat.

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Power Amplifier

The MAMG-100227-010 from MACOM Technology Solutions is available from Richardson RFPD, Geneva, IL. The broadband, two-stage, GaN-on-Si hybrid power amplifier module is a 10W device fully matched and covers a 225–2600 MHz frequency range. A gold-plated copper heat sink is attached to the bottom side of the laminate substrate. The package can be accessed from the top or the bottom. Features include 28V operation and 22-dB power gain.

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Aluminum Alloy

QuesTek Innovations LLC, Evanston, IL, introduced an aluminum alloy for additive manufacturing that provides high strength at elevated temperatures of 200 to 300 °C in the as-built condition. The powdered aluminum material does not require subsequent heat treatment. The alloy enables printing of lightweight components not currently possible with traditional manufacturing methods.

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USB Cable Assemblies

L-com, North Andover, MA, offers IP68-rated USB 2.0 cable assemblies and panel-mount connectors for extreme environments. The assemblies and connectors resist moisture, fine particulates, and vibration and feature gold contact plating for connections with repeated mating cycles. Other features include rugged molded backshells and RoHS compliance.

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Industrial PC

Beckhoff Automation, Savage, MN, announced the C6025 industrial PC with Intel® Core™ i U processor in a fanless device. The processor and cooling design enable fully passive heat dissipation via a heat sink on one side. The PC features up to four CPU cores, 4-GB DDR4 RAM (expandable to 8 GB), 40-GB M.2 SSD with 3D flash memory, one DisplayPort video connector, four USB 3.0 ports, and onboard Ethernet controller with 3 × 100/1000Base-T ports.

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Thermal Interface Material

Sarcon® GR80A-00-100GY from Fujipoly, Carteret, NJ, is a 1.0-mm-thick thermal interface material that delivers thermal conductivity of 13.0 W/m•K with a thermal resistance of 1.0 °C•in2/W. When placed between heat-generating components and a nearby heat sink, the silicone-based material completely fills air gaps between uneven components, board protrusions, and recessed areas. It is available in sheets up to 300 × 200 mm or can be diecut to fit exact application shapes.

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Chip Resistors

Stackpole Electronics, Raleigh, NC, offers CSSH Series current sense chip resistors that includes a 0.3-milliohm value in the 2512 size that is available in tolerances as low as 1% and TCR of 150 ppm, with a 3W power rating. The resistors feature temperature capability up to 275 °C and can be used for high-power electronics for steady-state currents of up to 77 amps.

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Connectors

Stewart Connector, Glen Rock, PA, released the RJ45 Press-Fit connector series designed to eliminate the use of soldering in the assembly process, which eliminates cold solder joints and solder flux contamination. The series includes both single and 1×2 port configurations that can accommodate 1G through 2.5G Base-T Ethernet speeds. They utilize a tab-up design and have multiple LED configurations.

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RFID Safety Switches

Banner Engineering, Minneapolis, MN, offers SI-RF Series RFID safety switches for monitoring doors, gates, and other movable machine safeguards. They can be deployed alone to safeguard a single machine access point or in a cascade series to safeguard multiple access points.

Cascade models can be connected in a series of up to 32 switches using a standard 4-wire cable, T-adaptors, an end plug, and two terminals on a safety controller.

Each switch consists of an RFID safety sensor that detects the presence, absence, or movement of an RFID coded actuator installed on a guard.

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Coin Cell Holders

Keystone Electronics, New Hyde Park, NY, offers Auto-In 12-mm coin cell holders for secure retention of 1220 and 1225 12-mm-diameter lithium coin cells. The rugged holders retain cells under shock and vibration in high-density PCB applications where the battery must be automatically inserted via a vacuum or mechanical pick-and-place device.

The holder is polarized and features dual-spring, gold-plated phosphor bronze contacts in a PA9T black plastic base.

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Oxidation-Resistant Coating

Graphi-Coat™ 623 from Aremco Products, Valley Cottage, NY, is a high-temperature, oxidation-resistant coating that protects graphite crucibles and fixtures used in metallurgical casting processes to 2000 °F (1093 °C).

The titanium diboride-based coating inhibits oxidation of most commercial grades of graphite.

The two-part system is a water-based, non-volatile material formulated with a weight and volume solids content of 78% and 58%, respectively. The coverage rate at a theoretical dry film thickness of 1 mil is 890 ft2/gallon.

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Frequency Divider Modules

Pasternack, an Infinite Electronics brand, Irvine, CA, offers frequency divider modules that cover broadband frequencies from 0.1 GHz to 20 GHz.

A selection of 28 different models is offered with a variety of fixed divide-by ratios from 2 to 40. They are suited for phase locked loop (PLL) and frequency synthesizer circuit designs as well as test instrumentation. Circuit assemblies feature GaAs HBT MMIC semiconductor technology that produces low additive SSB phase noise with typical levels down to -155 dBc/Hz at 100 KHz offset.

Input power ranges from -20 to +15 dBm, with output power ranges from -6 to +5 dBm, depending on the model.

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Data Acquisition Software

DAQami™ v4.2.1 software from Measurement Computing Corp., Norton, MA, provides a drag-and-drop interface for users to become familiar with the features of a data acquisition device, acquire data, and generate signals for interactive testing, data logging, and developing applications. It supports USB, Ethernet, and Bluetooth® devices and supports multiple devices for concurrent data input and output applications.

Users can acquire and log virtually unlimited samples from analog, digital, and counter input channels and can generate signals from analog, digital, and counter/ timer output channels.

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Connectors

Cinch Connectivity Solutions, Waseca, MN, offers the Trompeter Ganged Triax connector assembly for applications that require high noise immunity, rugged construction, low current measurements, and reduced distributed capacitance through the length of the transmission line.

The assembly enables low mating force with high-quality mating. High-density packaging enables construction of multi-channel connector assemblies with channel counts from 2 to 50. Multiple connector assemblies, or blocks, can be combined in space-constrained environments to increase the channel count to several hundred (or more).

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Resistors

Passive Plus, Huntington, NY, released PPI 2010 case size broadband resistors that operate at frequencies up to 50 GHz. They feature microwave laser-trimming and are wire-bondable, solderable, and can be used in a flip-chip configuration.

Other features include a resistance range from 3 to 1000 Ω, up to 800 mW maximum power, and operating temperature range from 55 to 150°C. The resistive material is tantalum nitride with alumina, beryllium oxide, and aluminum nitride substrates available.

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Tech Briefs Magazine

This article first appeared in the February, 2020 issue of Tech Briefs Magazine.

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