Fuses According to AEC-Q200

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Test procedures for fuses have been developed which meet the requirements profile Q200

Energy Efficiency, Industry 4.0

Fuses According to AEC-Q200
Fuses According to AEC-Q200

Fossil fuels are limited in availability. And when they are burned, harmful exhaust gases are generated. The fact that the future belongs to the electric vehicle is now out of question. And that's where SCHURTER comes into play. When fusing the electronics and battery cells.

Automobiles are becoming more and more comfortable, stronger, safer and therefore also heavier. In order to accelerate an electric vehicle adequately, a lot of energy is needed. This is achieved by interconnecting small battery cells – size around 4 VDC / 3200 mAh – in parallel and in series. In order to achieve an operating voltage of about 400 VDC, you need 100 cells in series. The endurance is achieved by parallel connection of many such 400 V strings. In very powerful electric vehicles, several thousand cells come together.

Battery balancing

The charging process is very important. "Battery balancing" means an electronic circuit which ensures a uniform electrical charge of a plurality of similarly constructed but slightly different battery cells due to manufacturing tolerances within an accumulator. Those cells, which absorb energy very rapidly, are decelerated somewhat. The weakest link in the chain indicates the beat. Each cell receives its individual treatment. This is the only way to reach the maximum capacity and to counteract an aging/weakening.

Each cell must be protected against overcurrent. This makes several thousand fuses per battery pack. It depends on each individual fuse. Such a fuse must work for many years without grumbling. It must do just as willingly in the coldest winter as in the brim of heat. Shocks, vibrations? Everyday life. Switching on, switching off, accelerating - cyclic strength is indispensable.


Behind the abbreviation AEC (Automotive Electronics Council) is a US-American organization for the standardization of the qualification of electronic components in the automotive industry. The standard Q200 introduced in the middle of the 1990s describes the requirements for passive components. These standards are valid worldwide. Specific tests and a requirement profile for fuses were not relevant at the beginning. However, this has changed with the introduction of electronic control units and electrical drives. SCHURTER was oriented to the high requirements of the aerospace industry, which were developed in cooperation with ESA. In cooperation with global key players in the automotive industry, test procedures for fuses have been developed which meet the requirements profile Q200.

Posted on May 23, 2017 - (658 views)
Werkhofstrasse 8-12
6002 Luzern - Switzerland
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SCHURTER continues to be a progressive innovator and manufacturer of electronic and electrical components worldwide. Our products ensure safe and clean supply of power, while making equipment easy to use. We offer a broad range of standard products including circuit protection, connectors, EMC products, switches and input systems, as well as electronic manufacturing services. Moreover, SCHURTER is ready to work with our customers to meet their application specific requirements, not covered in our standard range. You can rely on SCHURTER's global network of companies and partners to guarantee a high level of local service and product delivery.

Products and Services: Circuit Protection: Fuse-Links, Fuseholders, Circuit Breakers for Equipment, Voltage Selectors Connectors: IEC Appliance Couplers, Appliance Inlets, Connectors, Appliance Outlets, Plugs, Power Supply Cords, Interconnection Cords EMC Products: 1- and 3-phase Line Filters with and without IEC Appliance Inlets, Sine Filters, Chokes and Pulse Transformers Switches: Metal Line Switches, Printmount and Frontpanel Switches, Public Transport Switches, Indicators Input Systems: Metal- and Membrane Keypads, Touch Screens, Touch Panels, Cabinet and Housing Systems. Services: Electronic Manufacturing Services for the Electronic Industry, Development of Customer specific Products, Support of pre Compliance Measurement for EMC topics

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