Electronics
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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Compact I/O Modules
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
ACS Motion Control (Eden Prairie, MN) has developed SPiiPlus IOMnt EtherCAT digital I/O modules that offer up to 32 inputs and 32 outputs, with minimal power dissipation. The inputs are designed to meet EN 61131-2, type 3 (24V source type) and are functionally and pin compatible with Beckhoff EL1862/1872. The outputs are 24V/0.5A each, source type, fully protected, and functionally and pin compatible with Beckhoff EL2872.
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In-Line Power Supplies
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
GlobTek (Northvale, NJ) has introduced the GT-91120 series of in-line power supplies with double-enforced insulation mechanical configurations. They feature regulated outputs voltage from 5V to 48VDC in 0.1V increments and up to 30 W of continuous output power. They are potted in a 98.2 × 46.5 × 38.2 mm impact-resistant polycarbonate case. The supplies accept universal input from 90–Vac, and comply with EMI/RFI regulations, EMC Directives/CE and FCC Class B for ITE/medical applications. Also available in wall plug-in, desktop, and modified configurations.

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AC/DC Power Supplies
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
Protek Power (Hudson, MA) has introduced the PM400 Series of AC/DC power supplies, featuring 400 watts of performance in a package of 4 × 7 × 1.58 inches for medical applications, including patient vicinity medical devices. The series accepts a 90- 264VAC universal input. Single output models have voltages ranging from 12VDC to 48VDC, with standby output of 5VDC at 100mA.

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