Encapsulated with epoxy in a 304 stainless-steel enclosure, the supply is virtually impervious to dirt, moisture, and corrosive elements and can withstand a direct short in excess of 15 days with no external fusing necessary. It accepts multiple input voltages including 120 V, 240 V, and 277 V, 50/60 Hz, with outputs configurable for 12 or 24 V dc up to 60 W.
SENSORS TAKE THEIR BOWS
Sensors also landed in the top 10 with offerings from Avago Technologies and Murata Electronics North America. Introduced as the world’s smallest pyroelectric infrared (PIR) sensor, Murata’s IRS-B210ST01-RI measures 5 by 4.7 by 2.4 mm.
The component also lays claim as the only surface-mount PIR sensor (Fig. 6) available on the market. It includes dual 0.85- by 1.2-mm electrodes with a field of vision of ±70° horizontal and ±50° vertical. Operating temperature range is –40°C to 70°C, and operating voltage is in the range of 2 to 15 V.
Targeting a variety of mobile and consumer electronics such as cell phones, MP3 players, miniature PCs, game pads, digital cameras, and keyboards, Avago’s miniature optical finger navigation input system (Fig. 7) features a low-power architecture and power-management modes. It’s also capable of motion detection at rates up to 15 inches per second. Its on-chip oscillator and LED minimize external components.
Further, precise optical alignment isn’t required, enabling high-volume assembly. Other features include a self-adjusting frame rate, motion-detect-pin output, internal oscillator, selectable 250-, 500-, 750-, 1000-, and 1250-cpi (characters per inch) resolution or auto, dual 2.8/1.8-V or single 2.8-V supply options, and a selectable I/O voltage at 2.8 V or 1.8 V nominal.
MORE VIEWS FROM THE TOP
Interconnects captured fifth place on our list with the PX0885 self-pairing Bluetooth cable replacements (Fig. 8) from Elektron Components. Promising to eliminate data cables and allow equipment with RS-485 or RS-232 data ports to communicate using wireless Bluetooth technology, the components carry an IP68 rating and reside in environmentally sealed enclosures. The PX0885 mounts internally or externally for maximum flexibility and optimum range.
Wireless point-to-point or multi-drop data connections are quick and easy between serial interfaces or dumb devices, according to the company. Additionally, they work transparently without any need for a PC, programmable logic controller (PLC), or Bluetooth software. The master and slave units automatically establish a data link between themselves with no intervention or special serial commands required. The master automatically connects with up to six slave units to form a multi-drop network.
Under the passive components banner, Epcos grabbed sixth place with the CA04F2FT5AAUD010G dual electrostatic discharge/electromagnetic interference (ESD/EMI) audio filter (Fig. 9) for stereo headsets, mobile phones, portable multimedia players, PDAs, and notebook computers. The filter effectively reduces parasitic noise and increases audio quality. It combines EMI filtering and ESD protection in an EIA-0405, two-fold array package.
With a cutoff frequency of 20 MHz and low serial resistance of 0.2 Ω, the component is useful in applications requiring low bandpass attenuation. At frequencies from 200 MHz to 4 GHz, attenuation is higher than –20 dB for all quad-band GSM (850/890/1800 MHz) and UMTS standards (2.1 GHz) as well as for GPRS/WLAN and Bluetooth (2.4 GHz). At 900 MHz, it offers attenuation beyond –60 dB.
The component’s internal structure provides a double-clamping function and therefore can reduce ESD pulses from 8 kV to 70 V. It measures 1.37 by 1.0 mm2 and specifies a maximum operating voltage of 5.5 V dc and a typical insertion loss of –20 dB to –60 dB.
In the displays category, Cree took seventh with the ScreenMaster CLV6A-FKB, a water-resistant, surface-mount, high-brightness tri-color LED (Fig. 10) for use in outdoor video screens. The RGB LED carries an IPx5 rating, meaning the component includes protection against low-pressure jets of water from all directions. It relies on a black face to improve contrast in full-color video screens, decorative lighting, and amusement applications.
Designed to be unique, the LED employs an encapsulation resin with ultraviolet (UV) inhibitors that minimizes the effects of long-term exposure to direct sunlight. According to Cree, this improves light output stability over the life of the LED. Measuring 5.5 by 5.5 mm, the component also employs a matched horizontal radiation pattern that enhances color mixing and pixel-to-pixel consistency.