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Littelfuse Introduces 977 Series 5x20mm-Size 500VAC/450VDC Fuses

4th January 2011

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Littelfuse introduced its new 977 Series of ceramic body, 5x20mm-size fuses designed for circuit protection in both high-power AC and power-efficient DC applications. The 450VDC rating of the 977 Series sets it apart from other manufacturers’ fuse products.

The 977 Series fuses are available in ampere ratings from 0.5A to 16A.They can safely interrupt fault currents up to 100A at 500VAC or 200A at 450VDC. This series also includes axial lead versions, making it ideal for PCB through-hole mounting.

Electronic designers will appreciate the ability to use these fuses in power supply lines both before and after the PFC (power factor correction) capacitor banks. On the DC side, their DC rating also makes them ideal for individual component and secondary circuit protection.

The 977 Series fuses are RoHS-compliant/lead free, and are recognized under Semko and PSE agencies. They are designed for protection of equipment such as 3 phase power supplies, uninterruptible power supplies, and motor control circuits.

Littelfuse, the leader in fuse technology, provides a comprehensive range of products and solutions that provide over-current protection for any electronic application. With 80 years of experience in building and supplying overcurrent protection products, Littelfuse is dedicated to providing application expertise and support that meets customers’ needs.