Malvern, Pa. Vishay Intertechnology, Inc. has released three new devices in the MFU series of thin-film flat chip fuses that offer quick-acting fuse characteristics with rated current values up to 5.0 amps (A) and meet UL 248-14 and IEC 60127-4 standards.
The Vishay Beyschlag MFU 0603 and MFU 0805 devices are rated for a current range of 0.5 A to 4 A, while the MFU 1206 devices feature rated current values up to 5.0 A. Rated voltage is 32 V for the MFU 0603 and MFU 0805 and 63 V for the MFU 1206. The new devices provide a breaking capacity of 50 A at these rated voltages.
The new MFU 0603, MFU 0805, and MFU 1206 are designed to provide secondary overcurrent protection for power inverters, motion control units, dc-to-dc converters, battery chargers, and low-voltage power supplies in information technology, telecommunications, automotive, medical, and audio and video systems. The MFU 0603 and MFU 0805 are certified by the Underwriters Laboratory, and both are listed under UL E253806.
The new devices are available in standard metric case sizes. These include RR 1608M (1.55 x 0.85 x 0.45 mm) for the 0603 chip fuse, RR 2012M (2.0 x 1.25 x 0.45 mm) for the 0805 chip fuse, and RR 3216M (3.2 x 1.6 x 0.55 mm) for the 1206 chip fuse.
The MFU 0603, MFU 0805, and MFU 1206 support lead-free soldering and are suitable for processing on automatic surface-mount assembly systems using wave, reflow, or vapor phase processes. The terminations for the new lead-free MFU chip fuses are pure tin on nickel plating. The immunity of the plating against tin whisker growth has been proven under extensive testing, according to the company. All products comply with the CEFIC-EECA-EICTA list of legal restrictions on hazardous substances.
Samples and production quantities of the new thin-film flat chip fuses are available now, with a lead time of eight to ten weeks for larger orders. Pricing ranges from $ 0.17 to $0.37 per piece for U.S. delivery, depending on size and value of the rated current, in quantities of 5,000.
Vishay Intertechnology, 1-402-564-6400, www.vishay.com