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New MFU0603AT Series with Thin Film Technology Delivers Stability of Fusing Characteristics for Automotive Applications

MFU0603AT Thin Film Chip Fuse Series
MFU0603AT Thin Film Chip Fuse Series

Vishay Intertechnology, Inc. has introduced a new thin film chip fuse for electric (EV) and hybrid electric (HEV) vehicles, where it will provide protection for voltage sensing circuits in battery management systems, in addition to circuit protection for small loads. The MFU 0603 AT Series is AEC-Q200 qualified and features current ratings from 0.5A to 5.0A. It offers a robust design and consists of a homogenous metal alloy film deposited on a high-grade ceramic substrate, with fuse elements covered by a protective coating designed for electrical, mechanical, and climatic protection. 


The MFU 0603 AT Series features a rated voltage of up to 63V, breakdown capacity of 50A, and an operating temperature range of -55°C to +125°C. The device offers advanced sulfur resistance in accordance with ASTM B 809 and withstands 85 °C / 85 % R.H. for 1,000 h biased humidity testing and testing for thermal shock. Moreover, this RoHS-compliant and halogen-free Series is suitable for processing on automatic SMD assembly systems and automatic soldering using wave, reflow, or vapor phase and is offered in the 0603-case size.



  • Advanced thin film technology

  • AEC-Q200 qualified

  • Very quick acting fuse characteristics

  • Outstanding stability of fusing characteristics

  • Advanced sulfur resistance verified according to ASTM B 809



  • Electro vehicle

  • Hybrid electro vehicle

  • Battery management

  • Circuit protection of small loads



Samples and production quantities of the MFU 0603-FF AT Series are now available, with lead times of 10 to 14 weeks.

Component Datasheet

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