LED technology has totally revolutionized the lighting market. These devices bring countless advantages, but their sensitive electronic circuits require suitable protection. SCHURTER offers the optimal solution for every need.
In most cases, the service life of the LEDs exceeds that of the entire lighting fixture. Because there is no expectation of replacing LEDs as is the case with incandescent bulbs, they can be affixed permanently to the lighting fixture. To power the LEDs, an electronic circuit connects to the 230V AC power grid and generates a stable, controlled DC voltage. In case of a malfunction, though, it is possible for high currents to arise which can be hazardous to people and possibly start a fire.
The requirements on the primary protection of LED lighting systems are very high. The simplest and most reliable way to achieve primary protection is with a midget fuse. Such fuses require a sufficiently high I2t value to ensure they are not tripped by inrush current peaks. They also require high breaking capacity so they can, for example, interrupt the current path in case of a short circuit. Further, a compact design is important because power supplies for LEDs are kept very compact. Finally, fuses for the primary protection of LED lamps must guarantee reliable protection over long operating periods and at high temperatures.
SCHURTER fulfills these exact requirements in an optimal way with the UMT 250 and UMT-H SMD fuses. They are very robust in handling high inrush current peaks thanks to their time-lag characteristics, a high I2t value and high breaking capacity of 200 A for the UMT 250 and 1500 A for the UMT-H. The compact dimensions of 5.3×16 mm for the UMT-H and 3×10.1 mm for the UMT 250 make it possible to use both SMD fuses even in devices where space is very limited. Reliable tripping over a large temperature range during their entire service life, a low voltage drop and an attractive price/performance ratio make the UMT-H and UMT 250 excellent choices wherever quality and reliability are in high demand.
Contact:
Should you have any questions regarding these or other SCHURTER products, please contact:
SCHURTER LTD
Unit 8, Clock Park
Shripney Road
Bognor Regis
West Sussex, PO22 9NH
+44 (0)1243 810 810
