Oldham, UK With typical and maximum reverse current ratings at 30V of 1µA and 4µA respectively, the ZLLS350 Schottky barrier diode from Zetex Semiconductors helps extend battery life in a broad range of applications, from chargers to LED drivers. This characteristic, combined with a very low forward voltage - specified at a typical of 380 mV for a forward current of 30 mA - means this miniature, SOD 523 device offers an efficiency superior to that of much larger packaged devices. The 40V rated ZLLS350 also has an increased maximum permissible operating temperature. Often a limitation of Schottky devices, this latest Zetex part takes the temperature specification from 125°C up to 150°C. Current handling is high too, with continuous forward current quoted at 380 mA. The Schottky's 1.7 x 0.9mm footprint will help in the quest to reduce board size, and its 0.8mm off-board height will comfortably address any height restrictions. With 100% matte tin plated external pins, the ZLLS350 is designed lead-free and is supplied in 3,000 unit and 10,000 unit tape and reel. The price is $ 0.125 in quantities of 10,000. Zetex PLC , Oldham, Lancs, UK. www.zetex.com.
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