Littelfuse semiconductor fuses are designed to protect today's equipment and systems. They are manufactured with Littelfuse-developed technology that sets tomorrow's standards for accuracy, consistent quality, reliability, and predictable performance. These fuses are designed specifically for supplementary protection of semiconducting devices such as silicon controlled rectifiers (SCR's), diodes, thyristors, triacs, transistors, and similar solid-state devices. They can be used wherever extremely fast-acting, current-limiting fuses with no time delay are required.