With dimensions of approximately 10.1 x 3.12 x 3.12 mm, these fuses are ideal for applications requiring a 250VAC rating and component board space is limited. The 443 Series is designed to meet the requirements of design engineers looking to improve the efficiency of their board layout and product design. Target applications include AC inputs for LED lighting, notebook PC power adapters, or AC/DC power modules. They have inrush current withstand (I2t) ratings of up to 127A2s (5A current rating) along with a time lag characteristic. This means lower probability the fuse will open during momentary overloads, which can add up to lower warranty board replacement costs. The 0443 Series offers current ratings from 500mA to 5A, all with an interrupting rating of 50A at 250VAC. This product series complements Littelfuse's broad line of DC surface mount fuses used on the secondary side of power circuits, with ratings from 62mA to 15A at voltages from 24 to 350VDC. As a market leader in surface-mount fuse technology, Littelfuse offers OEMs production capacity for high volume demand, and fast production ramp-up for short lead times. Its DC surface mount fuses are used in demanding applications such as protection of lithium battery packs, DC/DC converters, LCDs, and telecom line cards. Agency approvals of these products include UL, CSA, METI and VDE.
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