Compact cartridge fuses save board space in high wattage equipment designs

07-02-2022 | Littelfuse | Passives

Littelfuse, Inc offers its compact cartridge fuse series, rated at 500VAC/VDC with current ratings from 40A to 63A and a 10,000A interrupting rating.

The 607 Series high-current, high-voltage cartridge fuse, designed for overcurrent protection applications, provides a robust solution for demanding high-voltage power supply circuits. The 500V fuse rating is suitable for both AC and DC inputs. With a 10mm x 32mm cartridge body, a single 607 fuse requires less board space than previous designs that used multiple lower current rated fuses in parallel. As a result, designers can decrease the board space they reserve for protection components when developing high wattage equipment.

"Today's power designers need greater layout flexibility to help reduce the size of their high-wattage designs while increasing reliability," said Style Liu, global product manager, Electronics Business Unit at Littelfuse. "Not only does the 607 series offer a very compact footprint that saves board space, but also offers a very high interrupt rating and a high current rating when compared to similar fuses on the market."

Operating temperatures range from -55C to 125C, providing reliable protection in extreme temperature environments. The environmentally-friendly component is RoHS compliant, halogen-free, and 100% Pb-free. The series is offered in through-hole, 10mm x 32mm packages in trays in quantities of 500.

Typical applications areas for the fuses include datacentres, telecoms, EV charging, HVAC systems, UPS, and inverters and rectifiers.

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