Schurter expanded its line of surface-mount fuses with the introduction of the Universal Modular Fuse, UMF 250. Its quick-acting characteristic according to IEC 60127-4 complements the successful UMT series, in providing overcurrent and short circuit protection for electronic systems in primary and secondary circuits. Current ratings up to 10 A at 250 VAC/125 VDC, the…
Sharp Shooting Analysis
By Scott Bradley, Design Modeling, and Simulation Lead System Design, Evaluation Ltd. Hertfordshire, UK In the design of almost any new high explosive ammunition, the most complex and often problematic component is the fusing system. The fuse must incorporate a Safe and Arm device to ensure that the projectile may only enter the armed state…
Combiner Box Handles 1000 Vdc Operation
Combiner box assembly satisfies UL 1741 standard at 1,000 Vdc, meeting the new photovoltaic standard certification. Critical components of the box include: Wöhner PV fuse holders and busbar to meet UL 4248-18; and 1,000 Vdc dc-rated disconnect switch. While higher 1,000 Vdc operation is common in European markets, the standards for UL—used throughout North America—were,…
AutomationDirect adds Class J High-Speed Drive fuses
AutomationDirect has added the Edison JHL series of Class J fuses to their line of circuit protection products. The JHL series 600 VAC/450 VDC fuses combine the performance of high-speed semiconductor fuses and the convenience of Class J branch-circuit fuses in one small package, allowing maximum protection for AC and DC drives and controllers. The…
AutomationDirect now offers Class T Fuses
AutomationDirect has added two series of Class T fuses to their line of circuit protection products. The TJN series 300 VAC and TJS series 600 VAC fuses are extremely fast-acting fuses in a compact, space-saving size, making them ideal for use as the main fuse protection for panel boards, load centers, meter stacks, and AC…
2-in-1 THM Automotive Blade Fuse Holders
Astoria. NY – Keystone Electronics has expanded its successful series of low insertion force, reliable and compact 2-in-1 THM automotive blade fuse holders to incorporate surface mount technologies. This new entry of surface mount holders is manufactured to assure secure positioning during reflow soldering. The holders also feature fully insulated clips to protect fuses and…
Up-LINK® Fuseholder from Littelfuse
DES PLAINES, Illinois — Littelfuse, Inc. (Nasdaq/NMS: LFUS) offers a remote-indication fuseholder utilizing Up-LINK® technology, which reduces plant downtime and saves production facilities money. The fuseholder offers this benefit by integrating into a facility’s existing monitoring network or PLC. When a fuse opens, a control signal is generated that can be relayed via the control…
New Littelfuse 458 Series Nano2® Surface Mount Fuse
DES PLAINES, IL – Littelfuse, Inc. (NASDAQ/NGS:LFUS) introduces the 458 Series of 1206-size surface mount fuses. The newest member of the Littelfuse Nano2‚® fuse product family, the 458 Series is a fast-acting fuse line for overcurrent protection at the PCB level. The 458 Series uses “Wire in Air” construction, a technology that makes possible a…
Littelfuse Introduces 437 Series Surface-Mount Fuse
DES PLAINES, IL – Littelfuse, Inc. (NASDAQ/NGS:LFUS) introduces the 437 Series surface-mount 1206-size fuse for reliable DC circuit protection in electronics applications with high ambient operating temperatures. Unlike comparable fuses, the 0437 Series operates effectively in temperatures ranging from -55‚ºC up to 150‚ºC without nuisance tripping. The 437 Series ceramic fuse has a temperature rating…
Littelfuse Surface-Mount Time-Delay Fuse
DES PLAINES, IL – Littelfuse, Inc. (NASDAQ/NGS:LFUS) today introduced its 0443 surface mount time-lag fuse line for overcurrent protection of printed circuit boards. With dimensions of approximately 10.1 x 3.12 x 3.12 mm, these fuses are ideal for applications with the higher 250 VAC requirement and where space is limited. They have inrush current withstand…
125V Subminiature Surface Mount Fuse
Addressing customer requests for smaller embedded device protection of higher-current applications, Littelfuse (NASDAQ: LFUS) has launched a new series of fast-acting ROHS and UL compliant 20A and 30A subminiature surface-mount fuses. Measuring only 10.10-mm (0.397-in.) long and 3.12-mm (0.123 in.) width and height, Littelfuse Nano2 456 Series ceramic fuses are available in 20A and 30A…