MFU Thin Film Chip Fuses Vishay / Beyschlag MFU Thin Film Chip Fuses feature a highly controlled manufacturing thin film process and stable fusing characteristics. These fuses operate in a -55°C to +125°C temperature range and provide quick-acting fuse characteristics. Vishay / Beyschlag MFU Thin Film Chip Fuses are an ideal choice for most fields of modern electronics. Typical applications include information technology, telecommunication, medical equipment, industrial, audio/video, and automotive electronics.