Electronics
Magnetic Proximity Switch
Posted in Electronics & Computers, Electronics, Products, MDB on Saturday, 01 October 2011
The Series 9Q magnetic proximity switches from Canfield Connector (Youngstown, OH) are engineered to fit “T” slot extruded actuators. The sensors are offered as a flying lead or 8 mm quick connect. Available in reed or electronic sensing, the rugged polyurethane encapsulated switches feature an on board indicator light and a hard nylon shell. They offer reverse polarity protection and are available in DC or AC voltage versions. The electronic sensing version has no moving parts. The Series 9Q operates in a temperature range from –20 °C to 80 °C, and is corrosion and wash down resistant.

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SMT Key Switches
Posted in Electronics & Computers, Electronics, Products, MDB on Saturday, 01 October 2011
C&K Components (Newton, MA) has designed the K12S series of robust, IP67-sealed SMT key switches for harsh environment applications. The switches are available with LED illumination or double action and detect versions. The series is RoHS-compliant and halogen- free. Users have the flexibility to tailor force values, actuation travel options, and provide single pole double throw (SPDT) custom solutions to meet application requirements. The series features an actuation force range of 1.5 N to 9N with an overload of 100N and a total travel time of 1.5 mm. The K12S Series device features a maximum power rating of 3 WDC and a minimum/maximum voltage of 2V – 30VDC with a minimum/maximum current rating of 10 μA to 100 mA. Operating temperature ranges from –40 °C to 85 °C. The series is also available in an IP40-rated package for less demanding applications.

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Electric Motor is Just a Single Molecule
Posted in News, Electronics & Computers, Electronics, Medical, Drug Delivery & Fluid Handling, MDB on Tuesday, 06 September 2011
Tufts University chemists have announced the development of the world's first single-molecule electric motor — a mind-boggling concept in and of itself, but even more so when you take a look at the hard numbers. The new motor measures a mere 1 nanometer across — 200X smaller than the current world record for smallest electric motor (200 nanometers), and 60,000X smaller than the width of a single strand of human hair. This represents the first time an electrically driven molecular motor has been successfully demonstrated.
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Thermal Management Solutions for Medical Applications
Posted in Bio-Medical, Electronics & Computers, Electronics, Medical, Patient Monitoring, Briefs, MDB on Thursday, 01 September 2011

Thermoelectric Assemblies (TEAs) offer precise temperature control for applications with tight space constraints and low weight requirements.

Thermal management of medical electronic devices and systems is now more challenging. Power densities continue to increase while product form factors continue to shrink. Simple thermal management solutions, such as passive cooling (adding a fan and heat sink), are no longer typically viable to meet required performance and reliability specifications. In today’s complex medical operating environment, Thermo electric Assemblies (TEAs) are necessary to provide precise temperature control via cooling and heating in a variety of modular platforms.
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Chip Resistors
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
TT electronics PLC (Surrey, UK) has introduced chip resistors that are optimized for use with conductive adhesives and suitable for applications like medical MRI scanners where non-magnetic components must be used. The GCR series glueable chip resistors are available in several variants, with EIA chip sizes down to 0805 and E24/E96 resistance values from 1Ω to 10Ω. Power ratings are from 0.125W in the 0805 size up to 1W in the 2512 package. Planar and wraparound terminations are available, featuring a choice of metallurgies including polymer-silver or gold with a nickel barrier for use in various environments. Designers can choose from devices with 1% or 5% tolerance. The temperature coefficient of 100 ppm/°C (200 ppm/°C for values below 10Ω) ensures stability throughout the specified operating temperature range of -55°C to 200°C.
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Desktop Power Supplies
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
The PPWAD200 Series from Power Partners (Hudson, MA) provides 200 Watts of desktop power in a 7.42" × 4.1" × 2.36" package. The series features a no load standby power of ≤0.5W and average efficiency of ≥87%. The power supplies have a 90-264VAC input and include seven single output models ranging from 12VDC to 48VDC. Custom output voltage solutions are also available. Operating temperature is -20°C to 40°C. No minimum load is required while maintaining 5% tolerance throughout the full load range.
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Mini Hybrid Connector
Posted in Electronics & Computers, Electronics, Medical, Drug Delivery & Fluid Handling, Products, MDB on Thursday, 01 September 2011
Colder Products (St. Paul, MN) has introduced the Mini Hybrid connector, which eliminates the need for multiple connections between remote tools and a device. For applications requiring a smaller footprint, this provides a compact, single connection point for both air and electrical lines. With a breakaway latching mechanism, the Mini Hybrid incorporates the SMC coupling platform in the fluid path, features gold-plated brass electrical contacts, and is suitable for pneumatic and low power applications.
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