Design Considerations for Battery Connectors
Posted in Bio-Medical, Electronics & Computers, Electronics, Medical, Briefs, MDB on Friday, 01 April 2011

As medical devices become more portable and miniaturized, their power connections must evolve to meet these demands.

The future of batteries, like that of so many medical devices they power, is clearly toward smaller, lighter, and more powerful models. Developing concurrently with these new battery designs are battery connectors. As battery connection devices evolve, they have to meet a number of challenges, including: rapid growth of designs; rugged construction; high-density packaging; manufacturing costs; and environmental concerns.
Switching Regulators
Posted in Electronics & Computers, Electronics, Products, MDB on Friday, 01 April 2011
Mornsun America (Hudson, MA) has introduced the K78xx-2000 Series of three terminal switching regulators that are suitable for linear regulators. The series offers input ranges spanning    4.75VDC    to 18VDC, with positive or negative outputs of 2.5VDC, 3.3VDC, 5VDC, and 6.5VDC. An output rating of up to 2A allows for up to 13W of power in a miniature SIP package with a choice of straight or bent leads. The operating temperature ranges from -40 °C to 85 °C.
Multilayer Ceramic Capacitor Arrays
Posted in Electronics & Computers, Electronics, Products, MDB on Friday, 01 April 2011
AVX Corporation (Greenville, SC) offers multilayer ceramic capacitor (MLCC) arrays in 0405 and 0508 packages and four-element arrays in 0508 and 0612 packages with capacitance values ranging from 1 pf to 2.2 uf and voltages of 6.3 V to 100 V. The switched capacitor voltage doubling inverters are available in SO8 and miniature SO8 packages and a completed circuit would require the IC and three periphery capacitors. The arrays have been used in switched capacitor voltage doubling inverter designs to reduce the footprint and an operating efficiency greater than 90% with most loads.
Miniature, Metric PCB Screw Terminals
Posted in Electronics & Computers, Electronics, Products, MDB on Friday, 01 April 2011
A new miniature, screw terminal type binding post from Keystone Electronics (Astoria, NY) is suitable for 22-15 AQG wire and used in high-density PCB packaging. Rated at 15 Amps, the posts feature compact, low-profile design and are made of tin plated brass and zinc plated screws. The binding posts are supplied assembled or unassembled. Cat. No 8737 is supplied completely assembled with a screw and wire retention contact to aid in preventing wire damage. Cat. No. 8730 is supplied with an unassembled binding post and screw.
Electronics Enclosures
Posted in Electronics & Computers, Electronics, Products, MDB on Friday, 01 April 2011
Bud Industries (Willoughby, OH) offers electronics enclosures for medical electronics applications, including cabinet racks, NEMA boxes, plastic enclosures, server racks, and other rack equipment. The enclosures are made of stainless steel, plastic, aluminum, and powder-coated metals resistant to most common chemicals used by the medical industry. The SNB Series enclosures are constructed of 16-gauge 304 stainless steel, and are suitable for applications where sturdy construction, security, and a seal against moisture are required. The hinged covers clamp to their base with a keyed quarter-turn latch that requires a non-traditional key for added security.
Spring-Loaded Connectors
Posted in Electronics & Computers, Electronics, Mechanical Components, Products, MDB on Tuesday, 01 March 2011
Mill-Max (Oyster Bay, NY) offers high-density, 0.050" pitch through-hole and surface mount spring-loaded connectors (SLC) available in single and double-row strip packaging. Series 854-22-0XX-10-001101 and 855-22-0XX-10-001101 through-hole insulators feature molded standoffs. Tail diameters of .016" require minimal diameter plated holes for connector mounting, maximizing signal routing between pins. Series 854-22-0XX-30-001101 and 855-22-0XX-30-001101 surface mount spring connectors are low profile, standing less than .230" tall when engaged mid-stroke (.0275"). Each SMT spring pin features a base geometry of .030" round by .010" tall to maximize soldering surface area and promote solder joint fillet.
Medical-Grade LCD Displays
Posted in Electronics & Computers, Electronics, Medical, Diagnostics, Products, MDB on Tuesday, 01 March 2011
Panasonic (Seacaucus, NJ) has expanded its line of HD camera and recording systems designed for medical applications. The 32" EJ-MLA32U-W and 37" EJ-MLA37UJ-W HD LCD displays offer several viewing options including side-by-side display of two high-definition, vivid medical images, with independent adjust of each; three simultaneous screen displays (e.g. surgical image, vital signs); and a user-selectable picture-in-picture option. The image can be reversed or inverted to accommodate various orientations. Each of the viewing options is enhanced with Panasonic’s In-Plane-Switching Technology (IPS-Pro), which eliminates the conventional restrictions of LCD displays and delivers a wider viewing angle of 178° vertical and 178° horizontal, a contrast ratio of 1000:1, and a brightness level of 400 cd/m2. The 1920 × 1080 pixel screen displays up to 16.77 million colors.

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