Littelfuse 437 Series Fast Acting Fuses Littelfuse 437 Series fast acting fuses has been especially designed to provide over current protection to circuits with high working ambient temperatures (up to 150ºC). Ideal for automotive electronics, LCD displays, data modems, servers, printers and scanners applications. Operating temperature from -55°C to +150°C
100% Lead-free and RoHS compliant
Suitable for both leaded and lead-free reflow/wave soldering